AVX Transient Suppression Products

AVX Transient Suppression Products
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
Transient Suppression
www.avx.com
AVX Transient Suppression
Products
Version 11.10
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
Transient Suppression Products
The contents of this catalog are entitled and located on the pages noted below:
TransGuard® Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Part Number Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
TransGuard® Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
TransGuard® Performance Curves. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10
TransGuard® Automotive Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-18
Miniature AC Varistor – MAV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19-21
Radial Leaded High Tempeature Automotive, 150ºC Rated Radial Leaded . . . . . . . . . . . . . . . . . . 22-23
Controlled Capacitance Multilayer Varistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-25
Miniature 0201 MLV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26-27
High Temperature Automotive 150ºC Rated Varistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28-29
Glass Encapsulated SMD Varistor MLV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30-39
StaticGuard
.........................................................................................................................
40-42
StaticGuard Automotive Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43-45
MultiGuard. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46-49
AntennaGuard 0402/0603 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50-53
AntennaGuard/Sub pF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54-55
AntennaGuard Automotive Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56-58
USB Series Varistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59-62
CAN BUS Varistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63-64
UltraGuard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65-67
TransFeed and TransFeed Array. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68-75
TransGuard® Typical Circuits Requiring Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76-81
TransGuard® Application Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82-97
Packaging - Chips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98-101
Packaging - Axial Leads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
NOTICE: Specifications are subject to change without notice. Contact your nearest AVX Sales Office for the latest specifications. All statements, information and
data given herein are believed to be accurate and reliable, but are presented without guarantee, warranty, or responsibility of any kind, expressed or implied.
Statements or suggestions concerning possible use of our products are made without representation or warranty that any such use is free of patent infringement
and are not recommendations to infringe any patent. The user should not assume that all safety measures are indicated or that other measures may not be required.
Specifications are typical and may not apply to all applications.
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
TransGuard®
AVX Multilayer Ceramic Transient Voltage Suppressors
GENERAL DESCRIPTION
The AVX TransGuard® Transient Voltage Suppressors (TVS)
with unique high-energy multilayer construction represents
state-of-the-art overvoltage circuit protection. Monolithic
multilayer construction provides protection from voltage
transients caused by ESD, lightning, NEMP, inductive switching, etc. True surface mount product is provided in EIA
industry standard packages. Thru-hole components are
supplied as conformally coated axial devices.
TRANSGUARD® DESCRIPTION
TransGuard® products are zinc oxide (ZnO) based ceramic
semiconductor devices with non-linear voltage-current characteristics (bi-directional) similar to back-to-back zener diodes.
They have the added advantage of greater current and energy
handling capabilities as well as EMI/RFI attenuation. Devices
are fabricated by a ceramic sintering process that yields a
structure of conductive ZnO grains surrounded by electrically
insulating barriers, creating varistor-like behavior.
The number of grain-boundary interfaces between conducting electrodes determines “Breakdown Voltage” of the
device. High voltage applications such as AC line protection
require many grains between electrodes while low voltage
requires few grains to establish the appropriate breakdown
voltage. Single layer ceramic disc processing proved to be a
viable production method for thick cross section devices
with many grains, but attempts to address low voltage
suppression needs by processing single layer ceramic disc
formulations with huge grain sites has had limited success.
AVX, the world leader in the manufacture of multilayer
ceramic capacitors, now offers the low voltage transient
protection marketplace a true multilayer, monolithic surface
mount varistor. Technology leadership in processing
thin dielectric materials and patented processes for
precise ceramic grain growth have yielded superior energy
dissipation in the smallest size. Now a varistor has voltage
characteristics determined by design and not just cell sorting
whatever falls out of the process.
Multilayer ceramic varistors are manufactured by mixing
ceramic powder in an organic binder (slurry) and casting it
into thin layers of precision thickness. Metal electrodes are
deposited onto the green ceramic layers which are then
stacked to form a laminated structure. The metal electrodes
are arranged so that their terminations alternate from one
end of the varistor to the other. The device becomes a
monolithic block during the sintering (firing) cycle providing
uniform energy dissipation in a small volume.
1
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
TransGuard®
AVX Multilayer Ceramic Transient Voltage Suppressors
PART NUMBER IDENTIFICATION
Surface Mount Devices
Axial Leaded Devices
Important: For part number identification only, not for
construction of part numbers.
The information below only defines the numerical value of part number
digits, and cannot be used to construct a desired set of electrical limits.
Please refer to the TransGuard® part number data for the correct electrical ratings.
Important: For part number identification only, not for
construction of part numbers.
The information below only defines the numerical value of part number
digits, and cannot be used to construct a desired set of electrical limits.
Please refer to the TransGuard® part number data for the correct electrical ratings.
V C 1206 05 D 150 R P
V A 1000 05 D 150 R L
TERMINATION FINISH:
LEAD FINISH:
P = Ni/Sn Alloy (Plated)
Copper clad steel, solder coated
PACKAGING (Pcs/Reel):
PACKAGING (Pcs/Reel):
STYLE
VC0402
VC0603
VC0805
VC1206
VC1210
“D”
N/A
1,000
1,000
1,000
1,000
“R”
N/A
4,000
4,000
4,000
2,000
STYLE
VA1000
VA2000
“T”
“W”
N/A
10,000
10,000
N/A
10,000
N/A
10,000
N/A
10,000
N/A
100
150
200
250
300
390
400
=
=
=
=
=
=
=
12V
18V
22V
27V
32V
42V
42V
500
560
580
620
650
101
121
=
=
=
=
=
=
=
Where: 100
150
300
400
50V
60V
60V
67V
67V
100V
120V
A
B
C
D
E
F
G
H
=
=
=
=
=
=
=
=
0.1J
0.2J
0.3J
0.4J
0.5J
0.7J
0.9J
1.2J
J
K
L
M
N
P
Q
R
=
=
=
=
=
=
=
=
1.5J
0.6J
0.8J
1.0J
1.1J
3.0J
1.3J
1.7J
S
T
U
V
W
X
Y
Z
=
=
=
=
=
=
=
=
Where:
03
05
09
12
14
= 3.3 VDC
= 5.6 VDC
= 9.0 VDC
= 12.0 VDC
= 14.0 VDC
=
=
=
=
12V
18V
32V
42V
580
650
101
121
=
=
=
=
60V
67V
100V
120V
A = 0.1J
D = 0.4J
K = 2.0J
WORKING VOLTAGE:
Where: 03
05
14
18
1.9-2.0J
0.01J
4.0-5.0J
0.02J
6.0J
0.05J
12.0J
25.0J
=
=
=
=
3.3 VDC
5.6 VDC
14.0 VDC
18.0 VDC
26
30
48
60
=
=
=
=
26.0
30.0
48.0
60.0
VDC
VDC
VDC
VDC
CASE SIZE DESIGNATOR:
SIZE
LENGTH
DIAMETER
1000 4.32mm (0.170") 2.54mm (0.100")
2000 4.83mm (0.190") 3.56mm (0.140")
CASE STYLE:
A = Axial
WORKING VOLTAGE:
Where:
“T”
7,500
5,000
ENERGY:
ENERGY:
Where:
“R”
3,000
2,500
CLAMPING VOLTAGE:
CLAMPING VOLTAGE:
Where:
“D”
1,000
1,000
18
26
30
48
60
85
=
=
=
=
=
=
18.0
26.0
30.0
48.0
60.0
85.0
VDC
VDC
VDC
VDC
VDC
VDC
PRODUCT DESIGNATOR:
V = Varistor
MARKING:
All axial TransGuards® are marked with vendor identification, product
identification, voltage/energy rating code and date code (see example below):
CASE SIZE DESIGNATOR:
SIZE
0402
0603
0805
1206
1210
LENGTH
1.00±0.10mm
1.60±0.15mm
2.01±0.2mm
3.20±0.2mm
3.20±0.2mm
(0.040"±0.004")
(0.063"±0.006")
(0.079"±0.008")
(0.126"±0.008")
(0.126"±0.008")
WIDTH
0.5±0.10mm
0.8±0.15mm
1.25±0.2mm
1.60±0.2mm
2.49±0.2mm
(0.020"±0.004")
(0.032"±0.006")
(0.049"±0.008")
(0.063"±0.008")
(0.098"±0.008")
CASE STYLE:
C = Chip
PRODUCT DESIGNATOR:
V = Varistor
MARKING:
All standard surface mount TransGuard® chips will not be marked.
AVX
TVS
05D
825
Where: AVX = Always AVX (Vendor Identification)
TVS = Always TVS (Product Identification
- Transient Voltage Suppressor)
05D = Working VDC and Energy Rating (Joules)
Where: 05 = 5.6 VDC, D = 0.4J
725 = Three Digit Date Code
Where: 8 = Last digit of year (2008)
25 = Week of year
Not RoHS Compliant
LEAD-FREE COMPATIBLE
COMPONENT
2
For RoHS compliant products,
please select correct termination style.
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
TransGuard®
AVX Multilayer Ceramic Transient Voltage Suppressors
ELECTRICAL CHARACTERISTICS
AVX
Part Number
Working Working Breakdown Clamping Test
Maximum Transient
Voltage Voltage
Voltage
Voltage Current Leakage
Energy
(DC)
(AC)
For VC
Current
Rating
VC060303A100 _ _
3.3
2.3
5.0±20%
12
1
100
0.1
Peak
Current
Rating
30
Typical Frequency
Cap
1450
K
Case
Size
0603
VC080503A100 _ _
3.3
2.3
5.0±20%
12
1
100
0.1
40
1400
K
0805
VC080503C100 _ _
3.3
2.3
5.0±20%
12
1
100
0.3
120
5000
K
0805
VC120603A100 _ _
3.3
2.3
5.0±20%
12
1
100
0.1
40
1250
K
1206
VC120603D100 _ _
3.3
2.3
5.0±20%
12
1
100
0.4
150
4700
K
1206
VA100003A100 _ _
3.3
2.3
5.0±20%
12
1
100
0.1
40
1500
K
1000
VA100003D100 _ _
3.3
2.3
5.0±20%
12
1
100
0.4
150
4700
K
1000
VC040205X150 _ _
5.6
4.0
8.5±20%
18
1
35
0.05
20
175
M
0402
VC060305A150 _ _
5.6
4.0
8.5±20%
18
1
35
0.1
30
750
K
0603
VC080505A150 _ _
5.6
4.0
8.5±20%
18
1
35
0.1
40
1100
K
0805
VC080505C150 _ _
5.6
4.0
8.5±20%
18
1
35
0.3
120
3000
K
0805
VC120605A150 _ _
5.6
4.0
8.5±20%
18
1
35
0.1
40
1200
K
1206
VC120605D150 _ _
5.6
4.0
8.5±20%
18
1
35
0.4
150
3000
K
1206
VA100005A150 _ _
5.6
4.0
8.5±20%
18
1
35
0.1
40
1000
K
1000
VA100005D150 _ _
5.6
4.0
8.5±20%
18
1
35
0.4
150
2800
K
1000
VC040209X200 _ _
9.0
6.4
12.7±15%
22
1
25
0.05
20
175
M
0402
VC060309A200 _ _
9.0
6.4
12.7±15%
22
1
25
0.1
30
550
K
0603
0805
VC080509A200 _ _
9.0
6.4
12.7±15%
22
1
25
0.1
40
750
K
VC080512A250 _ _
12.0
8.5
16±15%
27
1
25
0.1
40
525
K
0805
VC040214X300 _ _
14.0
10.0
18.5±12%
32
1
15
0.05
20
100
M
0402
VC060314A300 _ _
14.0
10.0
18.5±12%
32
1
15
0.1
30
350
K
0603
VC080514A300 _ _
14.0
10.0
18.5±12%
32
1
15
0.1
40
325
K
0805
VC080514C300 _ _
14.0
10.0
18.5±12%
32
1
15
0.3
120
900
K
0805
VC120614A300 _ _
14.0
10.0
18.5±12%
32
1
15
0.1
40
600
K
1206
VC120614D300 _ _
14.0
10.0
18.5±12%
32
1
15
0.4
150
1050
K
1206
VA100014A300 _ _
14.0
10.0
18.5±12%
32
1
15
0.1
40
325
K
1000
VA100014D300 _ _
14.0
10.0
18.5±12%
32
1
15
0.4
150
1100
K
1000
VC13MA0160KBA
16.0
14.0
24.5±10%
40
2.5
25
1.6
400
1800
K
1210
VC040218X400 _ _
18.0
13.0
25.5±10%
42
1
10
0.05
20
65
M
0402
VC060318A400 _ _
18.0
13.0
25.5±10%
42
1
10
0.1
30
150
K
0603
VC080518A400 _ _
18.0
13.0
25.5±10%
42
1
10
0.1
30
225
K
0805
VC080518C400 _ _
18.0
13.0
25.5±10%
42
1
10
0.3
100
550
K
0805
VC120618A400 _ _
18.0
13.0
25.5±10%
42
1
10
0.1
30
350
K
1206
VC120618D400 _ _
18.0
13.0
25.5±10%
42
1
10
0.4
150
900
K
1206
VC120618E380 _ _
18.0
13.0
22.0±10%
38
1
15
0.5
200
800
K
1206
VC121018J390 _ _
18.0
13.0
25.5±10%
42
5
10
1.5
500
3100
K
1210
VJ13MC0180KBA
18.0
13.0
24.0±10%
45
10
25
1.5
500
3000
K
1210
VA100018A400 _ _
18.0
13.0
25.5±10%
42
1
10
0.1
40
350
K
1000
Termination/Lead Finish Code
Packaging Code
3
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
TransGuard®
AVX Multilayer Ceramic Transient Voltage Suppressors
ELECTRICAL CHARACTERISTICS
AVX
Part Number
Working Working Breakdown Clamping Test
Maximum Transient
Voltage Voltage
Voltage
Voltage Current Leakage
Energy
(DC)
(AC)
For VC
Current
Rating
Peak
Current
Rating
Typical Frequency
Cap
Case
Size
VA100018D400 _ _
18.0
13.0
25.5±10%
42
1
10
0.4
150
900
K
1000
VC060326A580 _ _
26.0
18.0
34.5±10%
60
1
10
0.1
30
155
K
0603
VC080526A580 _ _
26.0
18.0
34.5±10%
60
1
10
0.1
30
120
K
0805
VC080526C580 _ _
26.0
18.0
34.5±10%
60
1
10
0.3
100
250
K
0805
VC120626D580 _ _
26.0
18.0
34.5±10%
60
1
10
0.4
120
500
K
1206
VC120626F540 _ _
26.0
20.0
33.0±10%
54
1
15
0.7
200
600
K
1206
VC121026H560 _ _
26.0
18.0
34.5±10%
60
5
10
1.2
300
2150
K
1210
VJ13MC0260KBA
26.0
18.0
33.0±10%
62
10
25
1.2
300
1120
K
1210
VC181226P540 _ _
26.0
20.0
33.0±10%
54
5
15
3.0
800
3000
K
1812
VA100026D580 _ _
26.0
18.0
34.5±10%
60
1
10
0.4
120
650
K
1000
VC060330A650 _ _
30.0
21.0
41.0±10%
67
1
10
0.1
30
125
K
0603
VC080530A650 _ _
30.0
21.0
41.0±10%
67
1
10
0.1
30
90
M
0805
VC120630D650 _ _
30.0
21.0
41.0±10%
67
1
10
0.4
120
400
K
1206
VC121030G620 _ _
30.0
21.0
41.0±10%
67
5
10
0.9
220
1750
K
1210
VC121030H620 _ _
30.0
21.0
41.0±10%
67
5
10
1.2
280
1850
K
1210
VJ13MC0300KBA
30.0
21.0
39.0±10%
73
10
25
0.9
220
1020
K
1210
VJ13PC0300KBA
30.0
21.0
39.0±10%
73
10
25
1.2
280
1150
K
1210
1000
VA100030D650 _ _
30.0
21.0
41.0±10%
67
1
10
0.4
120
550
K
VC120631M650 _ _
31.0
25.0
39.0±10%
65
1
15
1.0
200
500
K
1206
VC120638N770 _ _
38.0
30.0
47.0±10%
77
1
15
1.1
200
350
K
1206
VC121038S770 _ _
38.0
30.0
47.0±10%
77
2.5
15
2.0
300
750
K
1210
VC181238U770 _ _
38.0
30.0
47.0±10%
77
5
15
4.2
800
1700
K
1812
VC120645K900 _ _
45.0
35.0
56.0±10%
90
1
15
0.6
200
260
K
1206
VC181245U900 _ _
45.0
35.0
56.0±10%
90
5
15
4.0
500
1200
K
1812
VC120648D101 _ _
48.0
34.0
62.0±10%
100
1
10
0.4
100
225
K
1206
VC121048G101 _ _
48.0
34.0
62.0±10%
100
5
10
0.9
220
450
K
1210
VC121048H101 _ _
48.0
34.0
62.0±10%
100
5
10
1.2
250
500
K
1210
VJ13MC0480KBA
48.0
34.0
60.5±10%
110
10
25
0.9
220
800
K
1210
VJ13PC0480KBA
48.0
34.0
60.5±10%
110
10
25
1.2
250
840
K
1210
VA100048D101 _ _
48.0
34.0
62.0±10%
100
1
10
0.4
100
200
K
1000
VC120656F111 _ _
56.0
40.0
68.0±10%
110
1
15
0.7
100
180
K
1206
VC181256U111 _ _
56.0
40.0
68.0±10%
110
5
15
4.8
500
800
K
1812
VC121060J121 _ _
60.0
42.0
76.0±10%
120
5
10
1.5
250
400
K
1210
VJ13MC0600KBA
60.0
42.0
75.0±10%
126
10
25
1.5
250
600
K
1210
VA200060K121 _ _
60.0
42.0
76.0±10%
120
1
10
2.0
300
400
K
2000
VC120665L131 _ _
65.0
50.0
82.0±10%
135
1
15
0.8
100
120
K
1206
85.0
60.0
100±10%
150
1
35
2.0
250
275
K
1210
VC121085S151 _ _
Termination/Lead Finish Code
Packaging Code
VW (DC)
VW (AC)
VB
VB Tol
VC
DC Working Voltage (V)
AC Working Voltage (V)
Typical Breakdown Voltage (V @ 1mADC )
VB Tolerance is ± from Typical Value
Clamping Voltage (V @ IVC )
IVC
IL
ET
IP
Cap
Freq
4
Test Current for VC (A, 8x20μS)
Maximum Leakage Current at the Working Voltage (μA)
Transient Energy Rating (J, 10x1000μS)
Peak Current Rating (A, 8x20μS)
Typical Capacitance (pF) @ frequency specified
and 0.5 VRMS
Frequency at which capacitance is measured
(K = 1kHz, M = 1MHz)
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
Dimensions
Dimensions: Millimeters
(Inches)
0.51 ±0.05
(0.020" ±0.002")
D
Max.
L
Max.
25.4 (1.0")
Min. Lead Length
DIMENSIONS: mm (inches)
AVX Style
VA1000
VA2000
(L) Max Length
mm
(in.)
4.32
(0.170)
4.83
(0.190)
(D) Max Diameter
mm
(in.)
2.54
(0.100)
3.56
(0.140)
䉲
䉲
W
䉲
䉲
L
䉲
Lead Finish: Copper Clad Steel, Solder Coated
T
䉲
䉲
䉲
t
DIMENSIONS: mm (inches)
AVX Style
0402
0603
0805
1206
1210
1812
2220
(L) Length
mm
(in.)
1.00±0.10
(0.040±0.004)
1.60±0.15
(0.063±0.006)
2.01±0.20
(0.079±0.008)
3.20±0.20
(0.126±0.008)
3.20±0.20
(0.126±0.008)
4.50±0.20
(0.177±0.008)
5.70±0.20
(0.224±0.008)
(W) Width
mm
(in.)
0.50±0.10
(0.020±0.004)
0.80±0.15
(0.031±0.006)
1.25±0.20
(0.049±0.008)
1.60±0.20
(0.063±0.008)
2.49±0.20
(0.098±0.008)
3.20±0.20
(0.126±0.008)
5.00±0.20
(0.197±0.008)
(T) Max Thickness
mm
(in.)
0.6
(0.024)
0.9
(0.035)
1.02
(0.040)
1.02
(0.040)
1.70
(0.067)
1.70
(0.067)
1.70
(0.067)
(t) Land Length
mm
(in.)
0.25±0.15
(0.010±0.006)
0.35±0.15
(0.014±0.006)
0.71 max.
(0.028 max.)
0.94 max.
(0.037 max.)
1.14 max.
(0.045 max.)
0.50±0.25
(0.020±0.010)
0.50±0.25
(0.020±0.010)
5
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
TransGuard®
AVX Multilayer Ceramic Transient Voltage Suppressors
TYPICAL PERFORMANCE CURVES (0402 CHIP SIZE)
VOLTAGE/CURRENT CHARACTERISTICS
PULSE DEGRADATION
Multilayer construction and improved grain structure result in
excellent transient clamping characteristics up to 20 amps
peak current, while maintaining very low leakage currents
under DC operating conditions. The VI curves below show the
voltage/current characteristics for the 5.6V, 9V, 14V, 18V and
low capacitance StaticGuard parts with currents ranging from
parts of a micro amp to tens of amps.
Traditionally varistors have suffered degradation of electrical
performance with repeated high current pulses resulting in
decreased breakdown voltage and increased leakage current. It has been suggested that irregular intergranular
boundaries and bulk material result in restricted current
paths and other non-Schottky barrier paralleled conduction
paths in the ceramic. Repeated pulsing of TransGuard® transient voltage suppressors with 150Amp peak 8 x 20μS
waveforms shows negligible degradation in breakdown
voltage and minimal increases in leakage current. This
does not mean that TransGuard® suppressors do not suffer
degradation, but it occurs at much higher current.
100
VC04LC18V500
VC040218X400
VC040214X300
VC040209X200
VC040205X150
Voltage (V)
80
ESD TEST OF 0402 PARTS
60
35
40
VC04LC18V500
30
0
10-9
10-7
10-5
10-3
10-1
10
103
BREAKDOWN VOLTAGE (Vb)
20
105
Current (A)
PEAK POWER VS PULSE DURATION
25
20
VC040214X300
15
VC040209X200
10
1300
VC040218X400
VC040205X150
1200
5
1100
10
100
1000
10000
8kV ESD STRIKES
VC040218X400
VC040214X300
VC040209X200
VC04LC18V500
VC040205X150
1000
800
INSERTION LOSS CHARACTERISTICS
0
700
-5
600
500
-10
dB
PEAK POWER (W)
900
400
300
200
VC04LC18V
VC040218X
-15 VC040214X
VC040209X
VC040205X
-20
100
0
10
100
IMPULSE DURATION (μS)
6
1000
-25
0.01
0.1
1
10
Frequency (GHz)
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
TransGuard®
AVX Multilayer Ceramic Transient Voltage Suppressors
TYPICAL PERFORMANCE CURVES (0603, 0805, 1206 & 1210 CHIP SIZES)
VOLTAGE/CURRENT CHARACTERISTICS
Multilayer construction and improved grain structure result in excellent transient clamping characteristics up to 500 amps peak
current, depending on case size and energy rating, while maintaining very low leakage currents under DC operating conditions. The VI curve below shows the voltage/current characteristics for the 3.3V, 5.6V, 12V, 14V, 18V, 26V, 30V, 48V and
60VDC parts with currents ranging from parts of a micro amp to tens of amps.
VI Curves - 3.3V and 5.6V Products
25
Voltage (V)
20
15
10
VI Curves - 9V, 12V, and 14V Products
5
50
10-6
3.3V, 0.1J
10-3
Current (A)
3.3V, >0.1J
10+0
5.6V, 0.1J
40
10+3
5.6V, >0.1J
Voltage (V)
0
10-9
30
20
10
VI Curves - 18V and 26V Products
0
10-9
100
9V, 0.1J
80
Voltage (V)
10-6
10-3
Current (A)
12V, 0.1J
10+0
14V, 0.1J
10+3
14V, >0.1J
60
40
VI Curves - 30V, 48V, and 60V Products
20
200
10-6
18V, 0.1J
10-3
Current (A)
18V, >0.1J
10+0
26V, 0.1J
10+3
26V, >0.1J
150
Voltage (V)
0
10-9
100
VI Curve - 85V Product
50
200
160
Voltage (V)
0
10-9
10-6
120
30V, 0.1J
10-3
Current (A)
30V, >0.1J
10+0
48V
10+3
60V
80
40
0
1.E-09
1.E-06
1.E-03
1.E+00
1.E+03
Current (A)
7
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
TransGuard®
AVX Multilayer Ceramic Transient Voltage Suppressors
TYPICAL PERFORMANCE CURVES (0603, 0805, 1206 & 1210 CHIP SIZES)
3.3V
8
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
TransGuard®
AVX Multilayer Ceramic Transient Voltage Suppressors
TYPICAL PERFORMANCE CURVES (0603, 0805, 1206 & 1210 CHIP SIZES)
TEMPERATURE CHARACTERISTICS
TransGuard® suppressors are designed to operate over the full temperature range from -55°C to +125°C. This operating
temperature range is for both surface mount and axial leaded products.
TYPICAL ENERGY DERATING VS TEMPERATURE
1.25�
1�
40
30
0.8�
20
10
10-9
10-8
10-7
10-6
10-5
10-4
10-3
10-2
Current (A)
-40 C
25 C
85 C
Energy Derating
Voltage as a Percent of
Average Breakdown Voltage
Temperature Dependence of Voltage
100
90
80
70
60
50
0.6�
0.4�
125 C
TYPICAL BREAKDOWN AND CLAMPING VOLTAGES
VS TEMPERATURE - 5.6V
0
-60 -40 -20
0
20
40
60
80
100 120
140 160
o
�Temperature ( �C)
20
VC
15
5.6V
VB
10
5
-55
-40
-20
0
20
40
60
Temperature ( o C)
80
100
120
140
150
TYPICAL CAPACITANCE VS TEMPERATURE
TYPICAL BREAKDOWN AND CLAMPING VOLTAGES
VS TEMPERATURE - 18V
+25
+20
( VC )
40
30
20
-55
18V
-40
( VB )
-20
0
20
40
60
Temperature ( o C)
80
100
120
140
150
TYPICAL BREAKDOWN AND CLAMPING VOLTAGES
VS TEMPERATURE - 26V
+10
Av
+5
era
ge
0
-5
-10
-15
-25
( VC )
50
30
-55
+15
-20
60
40
Capacitance Relative to 25°C
50
25° C Reference
Typical Breakdown (VB )
and Clamping (VC ) Voltages
Typical Breakdown (VB )
and Clamping (VC ) Voltages
Typical Breakdown (VB )
and Clamping (VC ) Voltages
0.2�
-40
-20
0
20
40
60
80
100
120
140
Temperature (°C)
26V
( VB )
-40
-20
0
20
40
60
Temperature (∞C)
80
100
120
140
150
9
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
TransGuard®
AVX Multilayer Ceramic Transient Voltage Suppressors
TYPICAL PERFORMANCE CURVES (0603, 0805, 1206 & 1210 CHIP SIZES)
PULSE DEGRADATION
Traditionally varistors have suffered degradation of electrical performance with repeated high current pulses resulting in decreased
breakdown voltage and increased leakage current. It has been
suggested that irregular intergranular boundaries and bulk material
result in restricted current paths and other non-Schottky barrier
paralleled conduction paths in the ceramic. Repeated pulsing of
both 5.6 and 14V TransGuard® transient voltage suppressors with
150 Amp peak 8 x 20μS waveforms shows negligible degradation
in breakdown voltage and minimal increases in leakage current.
This does not mean that TransGuard® suppressors do not suffer
degradation, but it occurs at much higher current. The plots
of typical breakdown voltage vs number of 150A pulses are
shown below.
Repetitive Peak Current Strikes
Repetitive Peak Current Strikes
TransGuard® 1210 1.5J Product
10%
Change in Breakdown Voltage (%)
Change in Breakdown Voltage (%)
TransGuard® 1206 0.4J Product
VC120618D400
8%
VC120626D580
6%
VC120614D300
4%
VC120605D150
2%
0%
0
100
200
300
400
Number of Strikes
500
600
10%
8%
6%
VC121018J390
4%
2%
0%
0
100
200
300
400
Number of Strikes
Figure 1
Repetitive Peak Current Strikes
Repetitive Peak Current Strikes
Change in Breakdown Voltage (%)
Change in Breakdown Voltage (%)
StaticGuard 0805 0.1J Product
15%
10%
VC080518A400
VC080518C400
0%
0
100
200
300
400
Number of Strikes
600
Figure 3
TransGuard® 0805 0.1J and 0.3J Products
5%
500
500
600
30%
25%
20%
15%
10%
VC08LC18A500
5%
0%
0
100
200
300
400
Number of Strikes
500
600
Figure 4
Figure 2
CAPACITANCE/FREQUENCY
CHARACTERISTICS
TransGuard® Capacitance vs Frequency 0805
80
80
60
40
20
VC060305A150
VC06LC18X500
0
0
10
20
40
60
Frequency (MHz)
Capacitance Change (%)
100
Capacitance Change (%)
100
100
VC080505C150
60
40
20
VC080518C400
0
VC060326A580
80
100
TransGuard® Capacitance vs Frequency 1206
VC080514A300
0
20
40
60
Frequency (MHz)
80
100
Capacitance Change (%)
TransGuard® Capacitance vs Frequency 0603
80
60
VC120614D300
40
20
VC120648D101
0
VC12LC18A500
0
20
40
60
Frequency (MHz)
80
100
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
TransGuard® Automotive Series
Multilayer Varistors for Automotive Applications
GENERAL DESCRIPTION
The TransGuard Automotive Series are zinc oxide (ZnO) based ceramic semiconductor devices with non-linear, bi-directional voltage-current characteristics.
They have the advantage of offering bi-directional overvoltage protection as well as
EMI/RFI attenuation in a single SMT package. The Automotive Series high current
and high energy handling capability make them well suited for protection against
automotive related transients.
FEATURES
APPLICATIONS
•
•
•
•
•
•
•
•
•
•
•
•
High Reliability
High Energy Absorption (Load Dump)
High Current Handling
AEC Q200 Qualified
Bi-Directional protection
EMI/RFI attenuation
Multi-strike capability
Sub 1nS response to ESD strike
Internal Combustion Engine (ICE) Vehicles
Hybrid Electric Vehicles (HEV)
Plug-in Hybrid Electric Vehicles (PHEV)
Commercial Vehicles
– CAN, LIN, FLEXRAY based modules
– Sensors
– Module load dump protection
– Motor/inductive load transient suppression
HOW TO ORDER
VC
AS
1206
18
D
400
Varistor
Chip
Automotive
Series
Case Size
Working
Voltage
Energy
Rating
Clamping
Voltage
16 = 16Vdc
18 = 18Vdc
26 = 26Vdc
30 = 30Vdc
38 = 38Vdc
42 = 42Vdc
48 = 48Vdc
56 = 56Vdc
85 = 85Vdc
A = 0.1J
B = 0.2J
C = 0.3J
D = 0.4J
E = 0.5J
F = 0.7J
H = 1.2J
J = 1.5J
K = 0.6J
L = 0.8J
S = 1.9-2.0J
380 = 38V
390 = 42V
400 = 42V
580 = 60V
620 = 67V
650 = 67V
770 = 77V
800 = 80V
101 = 100V
111 = 110V
151 = 150V
0402
0603
0805
1206
1210
*Not available for 0402
**Only available for 0402
R
P
Package
Termination
D = 7" (1000)*
R = 7" (4000)*
T = 13" (10,000)*
W = 13" (10,000)**
0402 only
P = Ni/Sn plated
PHYSICAL DIMENSIONS: mm (inches)
Size (EIA)
T
0402
t
t
0603
0805
W
1206
L
1210
Length (L)
1.00±0.10
(0.040±0.004)
1.60±0.15
(0.063±0.006)
2.01±0.20
(0.079±0.008)
3.20±0.20
(0.126±0.008)
3.20±0.20
(0.126±0.008)
Width (W)
0.50±0.10
(0.020±0.004)
0.80±0.15
(0.031±0.006)
1.25±0.20
(0.049±0.008)
1.60±0.20
(0.063±0.008)
2.49±0.20
(0.098±0.008)
Max Thickness (T)
0.60
(0.024)
0.90
(0.035)
1.02
(0.040)
1.02
(0.040)
1.70
(0.067)
Land Length (t)
0.25±0.15
(0.010±0.006)
0.35±0.15
(0.014±0.006)
0.71 max.
(0.028 max.)
0.94 max.
(0.037 max.)
0.14 max.
(0.045 max.)
11
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
TransGuard® Automotive Series
Multilayer Varistors for Automotive Applications
ELECTRICAL CHARACTERISTICS
AVX Part Number
VCAS060316B400 _ _
VCAS120616K380 _ _
VCAS121016J390 _ _
VCAS040218X400 _ _
VCAS060318A400 _ _
VCAS080518A400 _ _
VCAS080518C400 _ _
VCAS120618A400 _ _
VCAS120618D400 _ _
VCAS120618E380 _ _
VCAS121018J390 _ _
VCAS060326A580 _ _
VCAS080526A580 _ _
VCAS080526C580 _ _
VCAS120626D580 _ _
VCAS121026H560 _ _
VCAS060330A650 _ _
VCAS080530A650 _ _
VCAS080530C650 _ _
VCAS120630D650 _ _
VCAS121030H620 _ _
VCAS080538C770 _ _
VCAS120642L800 _ _
VCAS120648D101 _ _
VCAS121048H101 _ _
VCAS120656F111 _ _
VCAS121085S151 _ _
VW(DC)
VW(AC)
VB
VC
IVC
IL
Et
IP
Cap
VJump
PDISS
12
Working Working
Voltage Voltage
(DC)
(AC)
16
16
16
18
18
18
18
18
18
18
18
26
26
26
26
26
30
30
30
30
30
38
42
48
48
56
85
11
11
11
13
13
13
13
13
13
13
13
18
18
18
18
18
21
21
21
21
21
30
32
34
34
40
60
VB
VC
25.5±10%
22.0±10%
25.5±10%
25.5±10%
25.5±10%
25.5±10%
25.5±10%
25.5±10%
25.5±10%
22.0±10%
25.5±10%
34.5±10%
34.5±10%
34.5±10%
34.5±10%
34.5±10%
41.0±10%
41.0±10%
41.0±10%
41.0±10%
41.0±10%
47.0±10%
51.0±10%
62.0±10%
62.0±10%
68.0±10%
100.0±10%
42
38
42
42
42
42
42
42
42
38
42
60
60
60
60
60
67
67
67
67
67
77
80
100
100
110
150
Test Maximum
Current
IL
for VC
1
1
5
1
1
1
1
1
1
1
5
1
1
1
1
5
1
1
1
1
5
1
1
1
1
1
1
10
15
10
10
10
10
10
10
10
15
10
10
10
10
10
10
10
10
10
10
10
10
100
10
10
15
35
ET
IP
Typical
Cap
Freq
VJump
PDiss. Max
0.2
0.6
1.5
0.05
0.1
0.1
0.3
0.1
0.4
0.5
1.5
0.1
0.1
0.3
0.4
1.2
0.1
0.1
0.3
0.4
1.2
0.3
0.8
0.4
1.2
0.7
2.0
30
200
500
20
30
30
120
30
150
200
500
30
30
100
120
300
30
30
30
120
280
80
180
100
250
100
250
150
930
3100
65
150
225
550
350
900
930
3100
155
120
250
500
2150
125
90
250
400
1850
200
600
225
500
180
275
K
K
K
M
K
K
K
K
K
K
K
K
K
K
K
K
K
M
K
K
K
K
K
K
K
K
K
24.5
27.5
27.5
24.5
24.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
29.0
29.0
29.0
29.0
29.0
45.0
48.0
48.0
48.0
48.0
48.0
0.003
0.010
0.030
0.001
0.003
0.002
0.007
0.002
0.008
0.010
0.030
0.002
0.002
0.006
0.008
0.018
0.002
0.002
0.005
0.008
0.018
0.006
0.016
0.008
0.022
0.014
0.040
DC Working Voltage [V]
AC Working Voltage [V]
Typical Breakdown Votage [V @ 1mADC]
Clamping Voltage [V @ IIV]
Test Current for VC
Maximum leakage current at the working voltage [μA]
Transient Energy Rating [J, 10x1000μS]
Peak Current Rating [A, 8x20μS]
Typical capacitance [pF] @ frequency specified and 0.5VRMS
Jump Start (V)
Power Dissipation (W)
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WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
TransGuard® Automotive Series
Multilayer Varistors for Automotive Applications
AUTOMOTIVE SERIES – LOAD DUMP TEST
According to ISO DP7637 rev 2 Pulse 5
Automotive Load Dump Pulse
(According to ISO 7637 Pulse 5)
Voltage (V)
Energy (Joules)
When using the test method indicated below, the
amount of Energy dissipated by the varistor must not
exceed the Load Dump Energy value specified in the
product table.
Time (msec)
CONSUMER VEHICLE TESTING (12V Network)
AVX
Part Number
Working
Voltage
(DC)
Working
Voltage
(AC)
Transient
Energy
10 x 1000 us
(Joules)
Load Dump
Energy
(x10)
Joules
VCAS060316B400 _ _
VCAS120616K380 _ _
VCAS121016J390 _ _
VCSA040218X400 _ _
VCAS060318A400 _ _
VCAS080518A400 _ _
VCAS080518C400 _ _
VCAS120618A400 _ _
VCAS120618D400 _ _
VCAS120618E380 _ _
VCAS121018J390 _ _
16
16
16
18
18
18
18
18
18
18
18
11
11
11
13
13
13
13
13
13
13
13
0.2
0.6
1.5
0.05
0.1
0.1
0.3
0.1
0.4
0.5
1.5
0.25
1.5
3
0.05
0.1
0.1
1
0.1
1.5
1.5
3
Typical Vz Max Versus Pulse
Duration and Rs
0.5 Ohm
4 Ohm
100 mS
100 mS
35
40
45
30
35
35
35
40
40
40
45
40
55
65
35
40
40
45
50
55
55
65
COMMERCIAL VEHICLE TESTING (24V Network)
AVX
Part Number
Working
Voltage
(DC)
Working
Voltage
(AC)
Transient
Energy
10 x 1000 us
(Joules)
Load Dump
Energy
(x10)
Joules
VCAS060326A580 _ _
VCAS080526A580 _ _
VCAS080526C580 _ _
VCAS120626D580 _ _
VCAS121026H560 _ _
VCAS060330A650 _ _
VCAS080530A650 _ _
VCAS080530C650 _ _
VCAS120630D650 _ _
VCAS121030H620 _ _
26
26
26
26
26
30
30
30
30
30
18
18
18
18
18
21
21
21
21
21
0.1
0.1
0.3
0.4
1.2
0.1
0.1
0.3
0.4
1.2
0.1
0.15
0.5
1
3
0.15
0.15
0.5
1
3
Typical Vz Max Versus Pulse
Duration and Rs
1 Ohm
8 Ohm
100 mS
100 mS
45
50
50
50
55
50
50
55
60
60
50
55
60
60
80
60
60
65
70
90
13
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WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
TransGuard® Automotive Series
Multilayer Varistors for Automotive Applications
FORWARD TRANSMISSION CHARACTERISTICS (S21)
0603 Case Size
5
0
Insertion Los (dB)
-5
-10
-15
-20
-25
-30
18A - 730 MHz
-35
26A - 550 MHz
-40
30A - 665 MHz
-45
1
10
100
1000
10000
1000
10000
Frequency (MHz)
0805 Case Size
0
-5
Insertion Los (dB)
-10
-15
-20
18C - 300 MHz
-25
26A - 555 MHz
-30
26C - 460 MHz
-35
30A - 530 MHz
-40
38C - 430 MHz
30C - 390 MHz
-45
1
10
100
Frequency (MHz)
14
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WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
TransGuard® Automotive Series
Multilayer Varistors for Automotive Applications
FORWARD TRANSMISSION CHARACTERISTICS (S21)
1206 Case Size
0
Insertion Los (dB)
-10
-20
18D - 180 MHz
18E - 78 MHz
-30
26D - 260 MHz
26F - 210 MHz
-40
30D 125 MHz
42L - 95 MHz
-50
48D - 325 MHz
56F - 290 MHz
-60
1
10
100
1000
10000
1000
10000
Frequency (MHz)
1210 Case Size
0
Insertion Los (dB)
-10
-20
-30
-40
18J - 100 MHz
-50
30H - 140 MHz
48H - 225 MHz
-60
1
10
100
Frequency (MHz)
15
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WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
TransGuard® Automotive Series
Multilayer Varistors for Automotive Applications
V-I CHARACTERISTICS
0603 Case Size
90
80
70
18A
26A
30A
Voltage (V)
60
50
40
30
20
10
0
1.00E-09
1.00E-06
1.00E-03
1.00E+00
1.00E+03
Current (A)
0805 Case Size
120
100
18C
26C
Voltage (V)
80
30C
38C
60
40
20
0
1.00E-09
1.00E-06
1.00E-03
1.00E+00
1.00E+03
Current (A)
16
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WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
TransGuard® Automotive Series
Multilayer Varistors for Automotive Applications
V-I CHARACTERISTICS
1206 Case Size
140
Voltage (V)
120
18E
100
26D
80
42L
60
56F
30D
48D
40
20
0
1.00E-09
1.00E-06
1.00E-03
1.00E+00
1.00E+03
Current (A)
1210 Case Size
160
140
Voltage (V)
120
100
18J
30H
48H
60J
85S
80
60
40
20
0
1.00E-09
1.00E-06
1.00E-03
1.00E+00
1.00E+03
Current (A)
17
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WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
TransGuard® Automotive Series
Multilayer Varistors for Automotive Applications
ESD V-I CHARACTERISTICS
8 kV ESD Vc
(150pF/300ohm IEC Network)
2000
No Part 8k V
120618A400
1500
120618D400
Voltage (V)
120618E380
120626D580
1000
120626F540
120630D650
120656F111
500
0
0
50
100
150
200
Time (nsec)
TYPICAL VOLTAGE AT 8 KV PULSE
8kV Pulse
No Part
(No Suppression)
120618A400
120618D400
120618E380
120626D580
102626F540
120630D650
120656F111
Peak Voltage (V)
30ns Voltage (V)
100ns Voltage (V)
2130
1370
517
171
177
161
203
201
249
366
123
133
121
155
159
177
262
65
66
63
88
84
106
169
ESD 8 kV IEC 61000-4-2 150pF / 330Ω Resistor
VC060318A400
30.0
Breakdown Voltage
28.0
26.0
24.0
22.0
20.0
Initial
10
100
1000
10000
# Pulses
18
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WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
Miniature AC Varistor – MAV
Low Power AC Circuit Protection
GENERAL DESCRIPTION
AVX Miniature AC Varistors are designed for use in low power
AC circuit protection. MAV series devices are an ideal
solution to transient suppression in LC resonant circuits
intended for signal & power transfer. The AVX part provides
low loss in the resonant circuit yet is able to clamp large
amounts of transients in a bi-directional manner.
The ability to handle large transients makes the MAV series
useful in low power AC circuit protection and the AEC Q200
qualification allows for use in automotive applications.
FEATURES
APPLICATIONS
•
•
•
•
•
•
•
•
•
110 Pk-Pk @ 125kHz capability
AEC Q200 qualified
ESD rated to 25kV (HBM ESD Level 6)
EMI/RFI attenuation in off state
Bi-Directional protection
LC resonant circuits
AC sampling circuitry
Transformer secondaries
GFI modules
HOW TO ORDER
MAV
002
0
W
P
Series
Size
1 = 0603
2 = 0405
Capacitance
0 = Low
Packaging
D = 7" reel (1,000 pcs)
R = 7" reel (4,000 pcs)
T = 13" reel (10,000 pcs)
Termination
P = Plated Sn over Ni barrier
ANTENNAGUARD CATALOG PART NUMBERS/ELECTRICAL VALUES
AVX Part Number
VW (DC)
VW (AC)
VB
VC
IVC
ET
IP
IL
Cap
Elements
MAV0010_P
MAV0020_P
70
70
52
52
120 ±15%
120 ±15%
225
225
1
1
0.015
0.020
2
3
10
10
22pF Max
8pF Max
1
2
Packaging Code
VW (DC)
VW (AC)
VB
VC
DC Working Voltage [V]
AC Working Voltage [V]
Breakdown Voltage [V @ 1mADC]
Clamping Voltage [V @ IVC]
IL
ET
IP
Cap
Maximum leakage current at the working voltage [μA]
Transient Energy Rating [J, 10x100μS]
Peak Current Rating [A, 8x10μS]
Maximum capacitance @ 1MHz and 0.5VRMS
19
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WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
Miniature AC Varistor – MAV
Low Power AC Circuit Protection
TYPICAL PERFORMANCE CURVES
Transmission Characteristics
Voltage/Current Characteristics
0
240
220
-5
200
180
-10
160
140
-15
120
100
-20
80
60
40
1E-09
-25
1E-06
1E-03
1E-00
1E+03
-30
Leakage Current
MAV0010
1
10
MAV0020
100
1000
10000
Frequency (MHz)
MAV0010
MAV0020
TYPICAL PERFORMANCE CURVES
Impact of AC Voltage on Breakdown Voltage
Parallel 110VPP @ 125 kHz
Breakdown Voltage
+ Vb Change
10.0%
7.5%
5.0%
2.5%
0.0%
-2.5%
-5.0%
-7.5%
-10.0%
- Vb Change
10 min
60 min
120 min
10 min
60 min
120 min
Max
0.3%
0.6%
0.4%
0.3%
0.5%
0.3%
Min
0.2%
0.2%
0.2%
0.2%
0.1%
0.0%
Average
0.3%
0.3%
0.3%
0.2%
0.2%
0.2%
Apply 110V pp
125KHz Sine wave
(Parallel)
Impact of AC Voltage on Breakdown Voltage
Series 110VPP @ 125 kHz
Breakdown Voltage
+ Vb Chan ge
20
10.0%
7.5%
5.0%
2.5%
0.0%
-2.5%
-5.0%
-7.5%
-10.0%
- Vb Chan ge
10 min
60 min
120 min
10 min
60 min
120 min
Max
0.3%
0.3%
0.3%
0.3%
0.3%
0.3%
Min
0.2%
0.2%
0.2%
-0.2%
0.2%
0.2%
Average
0.3%
0.3%
0.3%
0.2%
0.3%
0.2%
Apply 110V pp
125KHz Sine wave
(Series)
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
Miniature AC Varistor – MAV
Low Power AC Circuit Protection
% Average Change in Leakage Current
IMPACT OF AC VOLTAGE ON LEAKAGE CURRENT
0.2
0.15
0.1
0.05
0
-0.05
-0.1
-0.15
-0.2
-0.25
-0.3
-40
-60
-20
0
20
40
60
80
100
120
140
Temperature (ºC)
120 V Peak to Peak
165 V Peak to Peak
PHYSICAL DIMENSIONS AND RECOMMENDED PAD LAYOUT
W
T
D
E
P
D
W
A
T
C
A
B
B
BW
BL
C
L
L
BL
L
W
T
1.60 ± 0.15
0.80 ± 0.15
(0.063±0.006) (0.032±0.006)
0.90 Max
(0.035) Max
1.00 ± 0.15
1.37 ± 0.15
(0.039±0.006) (0.054±0.006)
0.66 Max
(0.026) Max
BW
BL
P
MAV0010
0.35 ± 0.15
N/A
N/A
(0.014±0.006)
MAV0020
0.36 ± 0.10
0.20 ± 0.10
0.64 REF
(0.014±0.004) (0.008±0.004) (0.025)REF
A
B
C
D
E
0.89
(0.035)
0.76
(0.030)
2.54
(0.100)
0.76
(0.030)
N/A
0.46
(0.018)
0.74
(0.029)
1.20
(0.047)
0.30
(0.012)
0.64
(0.025)
21
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Radial Leaded High Temperature Automotive
150ºC Rated Radial Leaded TransGuard®
GENERAL DESCRIPTION
AVX High Temperature Multi-Layer Varistors are designed for underhood
applications. Products have been tested, qualified, and specified to 150ºC. The
Radial Leaded TransGuard is built for durability in harsh environments. The MLV
advantage is EMI/RFI attenuation in the off state. This allows designers to combine
the circuit protection and EMI/RFI attenuation function into a single highly reliable
device.
FEATURES
APPLICATIONS
•
•
•
•
•
• Under hood
• Down Hole Drilling
• Any high temperature application
Rated at 150ºC
AEC Q200 qualified
ESD rated to 25kV (HBM ESD Level 6)
EMI/RFI attenuation in off state
Excellent current and energy handling
HOW TO ORDER
VR15
AVX Style
AT
18
A
650
Series
Voltage
Energy
AT = 150ºC
Automotive
18 = 18V
A = 0.1J
Clamping
Voltage
650 = 67V
R
TR2
Leads
Packaging
R = RoHS
Compliant
TR2 - T&R
Standard 2
AVX Part Number
VW (DC)
VW (AC)
VB
VC
ET
IP
IL
VR15AT18A650R
18
13
41 ± 10%
67
0.1
30
10
VW(DC)
VW(AC)
VB
VC
DC Working Voltage [V]
AC Working Voltage [V]
Breakdown Votage [V @ 1mADC]
Clamping Votage [V @ 1A]
IL
ET
IP
Cap
Jump Start
PHYSICAL DIMENSIONS
Cap
90
Maximum leakage current at the working voltage [µA]
Transient Energy Rating [J, 10x1000µS]
Peak Current Rating [A, 8x20µS]
Capacitance [pF] @ 1KHz specified and 0.5VRMS
Max V
TAPE & REEL PACKAGING OPTIONS
TR1
Tape & Reel Standard 1
.170
(4.32)
Max.
.060 (1.52)
Max.
Jump
Start
29
TR2
Tape & Reel Standard 2
.150 (3.81)
Max.
0.630 (16.0)
Min.
1.0 (25.4)
Min.
0.478 (19.0)
Min.
.100 (2.54)±.030
mm (inches)
Width
Height
Thickness
Lead
Spacing
Lead
Diameter
4.32 Max.
3.81
2.54
2.54
0.508
(0.170)
(0.150)
(0.100)
(0.100)
(0.020)
22
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
Radial Leaded High Temperature Automotive
150ºC Rated Radial Leaded TransGuard®
TYPICAL PERFORMANCE CURVES
Voltage/Current Characteristics
120
Voltage (V)
100
80
60
40
20
0
1.0E-08
1.0E-07
1.0E-06
1.0E-05
1.0E-04
1.0E-03
1.0E-02
1.0E-01
1.0E+00
1.0E+01
1.0E+02
Current (A)
AEC-Q200-002 ESD Characteristics
% V b Change
10%
5%
0%
-5%
-10%
6
12
16
25
kV Pulse
ESD Wave Absorption Characteristics
2500
2000
No Part 8kV
VOLTA GE (V)
VR15AT18A650R
1500
1000
500
0
0
20
40
60
80
100
120
140
160
180
200
TIME (nsec)
8 kV ESD Vc
(150pF/330ohm IEC Network)
23
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WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
Controlled Capacitance
Multilayer Varistor
GENERAL DESCRIPTION
The Controlled Capacitance TransGuard is an
application specific bi-directional transient voltage
suppressor developed for use in mixed signal
environments. The Controlled Cap MLV has three
purposes: 1) reduce emissions from a high speed
ASIC, 2) prevent induced E fields from conducting into
the IC, and 3) clamp transient voltages
By controlling capacitance of the MLV, the center
frequency and 20db range for filtering purposes can
be targeted. A Controlled Cap MLV can greatly
improve overall system EMC performance and reduce
system size.
LEAD-FREE COMPATIBLE
COMPONENT
HOW TO ORDER
VCAC
0603
22
A
470
N
R
P
Varistor Chip
Automotive
Capacitance
Chip Size
Working
Voltage
Energy
Rating
Capacitance
Tolerance
Packaging
Termination
A = 0.1J
C = 0.3J
N = ±30%
M = ±20%
R = 4k pcs
22 = 22V
26 = 26V
470 = 47pF
820 = 82pF
P = Ni Barrier/
100% Sn (matte)
0603
AVX Part Number
VW (DC)
VW (AC)
VB
VC
IL
ET
IP
Cap
VCAC060322A470NRP
VCAC060326C820MRP
22
26
17
20
32.5±25%
36.0±15%
50
67
10
10
0.1
0.3
30
30
47
82
VW(DC)
VW(AC)
VB
VC
DC Working Voltage [V]
AC Working Voltage [V]
Breakdown Votage [V @ 1mADC]
Clamping Votage [V @ 1A]
IL
ET
IP
Cap
Cap
Tolerance
30%
20%
Case
Size
0603
0603
Maximum leakage current at the working voltage [µA]
Transient Energy Rating [J, 10x1000µS]
Peak Current Rating [A, 8x20µS]
Capacitance [pF] @ 1KHz specified and 0.5VRMS
T
W
0603 Discrete Dimensions
L
W
T
1.60±0.15
0.80±0.15
0.90 MAX
(0.063±0.006) (0.031±0.006)
BL
(0.035 MAX)
BW
N/A
mm (inches)
BL
0.35±0.15
(0.014±0.006)
L
24
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
Controlled Capacitance
Multilayer Varistor
V-I Curve
80
70
60
Volt (V)
50
40
30
20
10
0
1.E-09
1.E-07
1.E-05
1.E-03
1.E-01
1.E+01
1.E+03
Current (A)
VCAC060322A470N
VCAC060326C820M
S21
0
-5
Insertion Loss (dB)
-10
-15
-20
-25
-30
-35
-40
0.1
1
10
100
1000
10000
Frequency (MHz)
VCAC060322A470N
VCAC060326C820M
25
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
Miniature 0201 MLV
AVX Multilayer Ceramic Transient Voltage Suppressors
ESD Protection for any Circuit with Board Space Constraints
GENERAL DESCRIPTION
AVX 0201 Multi-Layer Varistors are designed for circuits where
board space is a premium. 0201 MLV offer bi-directional ESD protection in the smallest package available today. The added advantage is EMI/RFI attenuation. 0201 MLV can replace 2 diodes and
the EMC capacitor for a one chip solution.
The miniature size and one chip solution team to offer designers the
best in ESD protection and EMI filtering in one ultra compact device.
APPLICATIONS
FEATURES
•
•
•
•
•
•
•
•
•
•
•
•
Cell phone
PDA
Camera modules
Embedded components
Hearing aid
Any circuit with space constraints
MultiLayer Varistors (MLVs)
Capacitance 15pF to 150pF
Low VB Version
Bi-Directional protection
Fastest response time to ESD strikes
Multi-strike capability
Ultra compact 0201 case size
TVS Dodes
BUS
XCVR
LEAD-FREE COMPATIBLE
COMPONENT
BUS
XCVR
EMC
CAP
MLV PROTECTION METHOD
SINGLE COMPONENT SOLUTION
DIODE PROTECTION METHOD
THREE COMPONENT SOLUTION
TVS & EMI
TVS + EMI
HOW TO ORDER
VC
0201
03
V
151
W
P
Varistor
Chip
Chip Size
Working
Voltage
Energy
Rating
Capacitance
Packaging
Termination
151 = 150pF
03 = 3.5V
V = 0.02J
W = 7"
10kpcs
P = Ni Barrier/
100% Sn (matte)
0201
AVX Part Number
VW (AC)
VC020103V101WP
3.5
2.0
VC020103V121WP
3.5
2.0
VC020103V151WP
3.5
2.0
VC020105T150WP
5.6
4.0
VC020105T330WP
5.6
4.0
VC020105T500WP
5.6
4.0
VC020105T101WP
5.6
4.0
VC020105V101WP
5.6
4.0
VC020107V101WP
7.0
5.6
VC020116T150WP
16
11
VW(DC)
VW(AC)
VB
VC
IVC
26
VW (DC)
DC Working Voltage [V]
AC Working Voltage [V]
Breakdown Votage [V @ 1mADC]
Clamping Votage [V @ IVC]
Test Current for VC [A, 8x20µS]
VB
4.76 min
8.84 max
4.76 min
8.84 max
4.76 min
8.84 max
10.0 min
15.6 max
10.0 min
15.6 max
10.0 min
15.6 max
10.0 min
15.6 max
6.4 min
9.6 max
9.6 min
14.4 max
21.7 min
29.3 max
VC
IVC
IL
ET
IP
Cap
14max
1
50
0.02
10
100pF ±30%
14max
1
50
0.02
10
125pF ±30%
14max
1
50
0.02
10
150pF ±30%
35max
1
50
0.01
2
15pF ±30%
35max
1
50
0.01
4
33pF ±30%
35max
1
50
0.01
5
50pF ±30%
35max
1
50
0.01
5
100pF ±30%
17max
1
50
0.02
4
100pF ±30%
20max
1
50
0.02
5
100pF ±30%
45max
1
50
0.01
1
15pF ±30%
IL
ET
IP
Cap
Maximum leakage current at the working voltage [µA]
Transient Energy Rating [J, 10x1000µS]
Peak Current Rating [A, 8x20µS]
Capacitance [pF] @ 1KHz specified and 0.5VRMS
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
Miniature 0201 MLV
AVX Multilayer Ceramic Transient Voltage Suppressors
ESD Protection for any Circuit with Board Space Constraints
PHYSICAL DIMENSIONS: mm (inches)
T
t
t
Size (EIA)
Lenght (L)
0.60±0.03
(0.024±.001)
0201
Width (W)
0.30±0.03
(0.011±0.001)
Max Thickness (T)
0.33 max.
(0.013 max.)
Terminal (t)
0.15±0.05
(0.006±0.002)
W
L
TRANSMISSION CHARACTERISTICS
5.6Vdc
VOLTAGE/CURRENT CHARACTERISTICS
50.0
0
-5
37.5
-15
Insertion Loss (dB)
Votage (V)
-10
25.0
12.5
0
-20
-25
-30
-35
-40
1E-09
1E-08
1E-07
1E-06
1E-05
1E-04
1E-03
1E-02
1E-01
1E+00
1E+01
-45
-50
Current (A)
0.1
16 V
3.5 V
5.6 V
1
10
7V
100
1000
10000
Frequency (MHz)
15 pF
33 pF
TYPLICAL 8 KV ESD PERFORMANCE
(150pF / 300ohm IEC Network)
50 pF
100 pF
3.5Vdc
0
-5
Insertion Loss (dB)
30
25
Vb
20
15
10
5
-10
-15
-20
-25
-30
-35
-40
-45
-50
0
0
1
10
100
0.1
1000
1.0
15 pF
33 pF
10.0
100.0
1000.0
10000.0
Frequency (MHz)
# Pulses
50 pF
125 pF
100 pF
8kV CONTACT ESD vs PULSE 1 Mohm Input
(150pF / 330ohm Network)
150 pF
0
-5
Insertion Loss (dB)
-10
2500
Voltage (V)
1875
1250
-15
-20
-25
-30
-35
-40
625
-45
0
0
25
50
75
100
0.1
Time (n sec)
16 V
3.5 V
-50
5.6 V
7V
1.0
10.0
100.0
1000.0
10000.0
Frequency (MHz)
27
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
High Temperature Automotive
150ºC Rated Varistors
GENERAL DESCRIPTION
AVX High Temperature Multi-Layer Varistors are designed for
underhood applications. Products have been tested, qualified, and specified to 150ºC. The MLV advantage is EMI/RFI
attenuation in the off state. This allows designers the ability to
combine the circuit protection and EMI/RFI attenuation function into a single highly reliable device.
APPLICATIONS
FEATURES
•
•
•
•
•
LEAD-FREE COMPATIBLE
COMPONENT
• Under hood
Rated at 150°C
• Down Hole Drilling
AEC Q200 qualified
• Any high temperature application
ESD rating to 25kV contact
EMI/RFI attenuation in off state
Excellent current and energy handling
CAN SERIES
HOW TO ORDER
CAN
AT
01
R
P
Type
Series
Case Size
Packaging
Termination
Controlled Area
Network Varistor
Automotive
High Temperature
01 = 0603
02 = 0405 2-Element
04 = 0612 4-Element
D = 7” (1000 pcs)
R = 7” (4,000 pcs)
T = 13” (10,000pcs)
P = Ni Barrier/
100% Sn (matte)
AVX Part Number
VW (DC)
VW (AC)
VB
IL
ET
IP
Cap
Case Size
Elements
CANAT01-CANAT02-CANAT04--
≤ 18
≤ 18
≤ 18
≤ 14
≤ 14
≤ 14
120
70
100
10
10
10
0.015
0.015
0.015
4
4
4
22
22
22
0603
0405
0612
1
2
4
VW(DC)
VW(AC)
VB
VC
DC Working Voltage [V]
AC Working Voltage [V]
Breakdown Votage [V @ 1mADC]
Clamping Votage [V @ IVC]
IL
ET
IP
Cap
Maximum leakage current at the working voltage [µA]
Transient Energy Rating [J, 10x1000µS]
Peak Current Rating [A, 8x20µS]
Capacitance [pF] @ 1KHz specified and 0.5VRMS
ANTENNAGUARD SERIES
HOW TO ORDER
VCAT
06
AG
18
120
Y
A
T
1
A
Type
Case Size
Varistor Series
AntennaGuard
Non-Std.
Cap Tolerance
N/A
04 = 0402
06 = 0603
Working
Voltage
Cap
High Temperature
Varistor
Terminatio
n
Finish
Reel
Size
Reel
Quantity
1 = 7"
3 = 13"
A = 4000 or
10,000
18 = 18Vdc
P = Ni Barrier/
100% Sn
AVX Part Number
VW (DC)
VW (AC)
IL
Cap
VCAT06AG18120YAT--
≤ 18
≤ 14
10
12
VW(DC)
VW(AC)
28
DC Working Voltage [V]
AC Working Voltage [V]
IL
Cap
Cap Tolerance Case Size
+4, -2pF
0603
Maximum leakage current at the working voltage [µA]
Capacitance [pF] @ 1KHz specified and 0.5VRMS
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
High Temperature Automotive
150ºC Rated Varistors
PHYSICAL DIMENSIONS
W
W
T
P
P
W
T
T
BW
BL
BW
L
BL
0603 Discrete Dimensions
L
W
T
1.60±0.15
0.80±0.15
0.90 MAX
(0.063±0.006) (0.032±0.006)
(0.035 MAX)
BW
N/A
0.35±0.15
(0.014±0.006)
N/A
mm (inches)
W
T
BW
BL
P
1.00±0.15
1.37±0.15
0.66 MAX
0.36±0.10
0.20±0.10
0.64 REF
(0.014±0.004) (0.008±0.004)
0612 4 Elements Array Dimensions
(0.025 REF)
mm (inches)
L
W
T
BW
BL
P
1.60±0.20
3.20±0.20
1.22 MAX
0.41±0.10
0.18 +0.25
-0.08
0.76 REF
(0.048 MAX)
(0.016±0.004)
(0.008 -.003 )
(0.030 REF)
(0.063±0.008) (0.126±0.008)
L
P
L
(0.026 MAX)
BL
mm (inches)
BL
0405 2 Elements Array Dimensions
(0.039±0.006) (0.054±0.006)
L
+.010
29
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
Glass Encapsulated SMD Varistor MLV
(VJ12, 20, 13, 14, 15, 32)
Transient Voltage Suppression, ESD Protection Devices & EMI Devices
GENERAL DESCRIPTION
AVX’s Professional Multilayer Varistors
include 3 series of glass coated products
as listed below:
• Standard M0 Series
• Telecom MT Series
• Automotive MA/PA Series
The glass encapsulation process ensures
high insulation resistance values after
reflow soldering and excellent SMT
compatibility. This protection ensures
reliability and acid-resistance against
harsh environment like chlorite flux.
LEAD-FREE COMPATIBLE
COMPONENT
TYPICAL APPLICATIONS
PHYSICAL CHARACTERISTICS
Mainly used to reduce transient over-voltages in a very wide
range of electronic products. Some example applications
are:
1) Telecom, 2) Automotive, 3) Consumer Electronics, and
4) Industrial Applications.
Construction Weight: <0.2g
1 Zinc varistor
2 Glass lead-free encapsulation
3 Silver termination
4 Nickel barrier
5 Tin 100%
PHYSICAL DIMENSIONS: mm (inches)
W
䉲
T
䉲
䉲
䉲
IEC Size
VJ12
0805
VJ20
1206
VJ13
1210
VJ14
1812
VJ15
2220
VJ32
3220
䉲
䉲
䉲
䉲
L
Type
t
L
2.01±0.20
(0.079±0.008)
3.20±0.20
(0.126±0.008)
3.20±0.30
(0.126±0.012)
4.50±0.30
(0.177±0.012)
5.70±0.40
(0.224±0.016)
8.20±0.40
(0.323±0.016)
W
1.25±0.15
(0.049±0.006)
1.60±0.20
(0.063±0.008)
2.50±0.25
(0.098±0.010)
3.20±0.30
(0.126±0.012)
5.00±0.40
(0.197±0.016)
8.20±0.40
(0.323±0.016)
T
1.3 max.
(0.051 max.)
1.7 max.
(0.067 max.)
1.7 max.
(0.067 max.)
2.0 max.
(0.079 max.)
2.5max.
(0.098 max.)
2.5 max.
(0.098 max.)
Land Length t
0.15...0.55
(0.006...0.022)
0.25...0.75
(0.010...0.030)
0.25...0.75
(0.010...0.030)
0.25...1.00
(0.010...0.039)
0.25...1.00
(0.010...0.039)
0.25...1.00
(0.010...0.039)
PART NUMBERING
VJ
14
MT
0950
K
BA
Varistor Termination
VJ = Plated Ni/Sn100%
VU = Plated Ni/SnPb
VC = Hybrid AgPdPt
Chip Size
12 = 0805
20 = 1206
13 = 1210
14 = 1812
15 = 2220
32 = 3220
Series Code
M0 = Industrial
MT = Telecom
MA/PA = Automotive
Operating
Voltage
AC or DC
1mA Voltage
Tolerance
K = ±10%
Packaging
BA = Tape & Reel
VJ12 = 4000 pcs/reel
VJ20 = 3000 pcs/reel
VJ13 = 2000 pcs/reel
VJ14 = 1250 pcs/reel
VJ15 = 1250 pcs/reel
VJ32 = 1000 pcs/reel
30
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
Glass Encapsulated SMD Varistor MLV
(VJ12, 20, 13, 14, 15, 32)
Automotive MLV Range – MA and PA Series
AUTOMOTIVE SERIES – VJ12, 20, 13, 14, 15, 32 MA and PA SERIES
FEATURES
GENERAL CHARACTERISTICS
• Available in case size 0805, 1206, 1210, 1812, 2220,
(3220 under development)
• Nickel and Tin (100%) plated Termination
• Max Energy absorption: 1.5 to 25J (50J under
development)
• Well suited to protect against automotive related transients
• Load Dump capabilities: according to ISO standard
DP7637-2 12V and 24V pulse 5
• Jump start capability (12V): 24.5 V - 5mn
• Complying to main requirements of AECQ 200
• RoHS Compliant and IMDS Registration
Storage Temperature: -55ºC to +150ºC
Operating Temperature: -55ºC to +125ºC*
* 150°C upon request
APPLICATIONS
• Protection of various semiconductor elements from
overvoltage.
• Absorption of switching surge and electrostatic surge for
relays and motors.
• Protection of electronic equipment for automobiles from
induced lightning surge.
PART NUMBERS
Part Number
Case Size
EIA
*VJ12PA0160--VJ20MA0160--VJ20PA0160--VJ13MA0160--VJ13PA0160--VJ14MA0160--VJ14PA0160--VJ15MA0160--VJ15PA0160--VJ32PA0160--VJ15MA0340--VJ15PA0340--*VJ32PA0340
Working
Voltage
Breakdown
Voltage
Vdc
V(1mA)
16
16
16
16
16
16
16
16
16
16
34
34
34
24.5
24.5
24.5
24.5
24.5
24.5
24.5
24.5
24.5
24.5
47
47
47
0805
1206
1206
1210
1210
1812
1812
2220
2220
3220
2220
2220
3220
Peak
current
Maximum
leakage
current at Vdc
Amp. 8*20µs
µA
120
200
300
400
500
800
1000
1200
1500
2000
1200
2000
2000
20
20
20
20
20
20
20
20
20
20
20
20
20
Energy
10*1000µs
Jump Start
T max
Joules
Energy
Load-Dump
(x10)
Joules
Vmax
(5mn min.)
Thickness
mm (inches)
0.3
0.6
1.1
1.6
2
2.4
2.9
5.8
7.2
13.8
10
13
19
1
1.5
2
3
5
6
10
12
25
50
12
25
50
24.5
24.5
24.5
24.5
24.5
25.5
25.5
25.5
25.5
24.5
47
47
47
1.3
1.7
1.7
1.7
1.7
2
2
2
2
2.5
2.5
2.5
2.5
* under development
Hybrid termination AgPdPt upon request
TEMPERATURE CHARACTERISTICS
IMPEDANCE CHARACTERISTICS
For Current, Energy and Power
100
10
100
80
Z (Ohms)
Percent of Rating Value
120
60
40
0.1
20
0
-55
1
-25
0
25
50
75
100
Ambient Temperature (°C)
125
VJ15PA0160K
VJ15MA0160K
VJ14MA0160K
VJ13MA0160K
VJ20MA0160K
VJ15MA0340K
150
0.01
1,000
10,000
100,000
1,000,000
Frequency (kHz)
31
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
Glass Encapsulated SMD Varistor MLV
(VJ12, 20, 13, 14, 15, 32)
Automotive MLV Range – MA and PA Series
AUTOMOTIVE SERIES – VJ12, 20, 13, 14, 15, 32 MA and PA SERIES
V / I CHARACTERISTICS
PULSE RATING
100.00%
VJ20MA0160K
VJ13MA0160K
VJ14MA0160K
VJ14PA0160K
VJ15MA0160K
VJ15PA0160K
VJ15PA0340K
VJ32PA0160K
% of peak current rating
V (V)
100
50
0
1E-06 0.00001 0.0001 0.001 0.01
1 Repetition (Top)
2 Repetitions
10 Repetitions
10E2 Repetitions
10E3 Repetitions
10E4 Repetitions
10E5 Repetitions
10E6 Repetitions
Infinite (bottom)
Pulse Rating
200
150
A% max
T
V / I Characteristics : Automotive Parts
0.1
1
10
100
1000 10000
10.00%
1.00%
0.10%
10
100
I (A)
1000
10000
Pulse Duration (µs)
TEMPERATURE DEPENDENCE OF V/I CHARACTERISTICS
VJ20MA0160K
V/V1mA (%)
100
VJ13MA0160K
V/V1mA (%)
100
-40°C
-40°C
+25°C
+25°C
+85°C
+85°C
+125°C
+125°C
10
1E-07
1E-06
1E-05
1E-04
1E-03
1E-02
Current (A)
1E-05
1E-04
1E-03
1E-02
Current (A)
VJ14MA0160K
V/V1mA (%)
100
10
1E-06
VJ15MA0160K
V/V1mA (%)
100
-40°C
+25°C
+85°C
+125°C
-40°C
+25°C
+85°C
+125°C
10
1E-07
1E-06
1E-05
1E-04
Current (A)
32
1E-03
1E-02
10
1E-07
1E-06
1E-05
1E-04
1E-03
1E-02
1E-01
Current (A)
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
Glass Encapsulated SMD Varistor MLV
(VJ12, 20, 13, 14, 15, 32)
Automotive MLV Range – MA and PA Series
AUTOMOTIVE SERIES – VJ12, 20, 13, 14, 15, 32 MA and PA SERIES
VJ14PA0160
Voltage as a percent of
breakdown voltage
VJ15PA0160K
V/V1mA (%)
100
1,000
+25°C
+25°Cinter (%)
+25°Cfinal (%)
+85°C
+125°C
-40°C
+25°C
+85°C
+125°C
100
10
1E-07
1E-06
1E-05
1E-04
1E-03
Current (A)
1E-02
1E-01
10
1E-07
1E-06
1E-05
C
1E-04
1E-03
1E-02
t (A)
VJ15MA0340K
100
-40°C
+25°C
+85°C
+125°C
10
1E-07
1E-06
1E-05
1E-04
Current (A)
1E-03
1E-02
PULSE DEGRADATION
Repetitive Peak Current Strikes
Change in breakdown
voltage (%)
16%
VJ20MA0160K @200A
VJ13MA0160K @400A
14%
12%
VJ14MA0160K @800A
VJ14PA0160K @1000A
VJ15PA0160K @1200A
VJ15MA0160K @1200A
10%
8%
6%
4%
VJ15MA0340K @1200A
2%
0%
0
100
200
300
400
500
600
Number of strikes
33
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Glass Encapsulated SMD Varistor MLV
(VJ12, 20, 13, 14, 15, 32)
Automotive MLV Range – MA and PA Series
AUTOMOTIVE SERIES – VJ12, 20, 13, 14, 15, 32 MA and PA SERIES
AUTOMOTIVE LOAD DUMP TEST
(According to ISO DP7637/2 Pulse 5)
Vz
90%
When using the test method indicated below,
the amount of Energy dissipated by the
varistor must not exceed the Load Dump
Energy value specified in the product table.
10%
Vi
0V
t
Tr
Td
Voltage Pulse applied to the varistor:
12V Network
Vi = 13.5V
Td = 100 to 350ms
Ri = 2 Ohms (Internal Resistance)
Vz - 70 to 200V
Number of Pulses = 10 Pulses
Other Load Dump Simulations can be achieved
24V Network
Vi = 27V
Td = 100 to 350ms
Ri = 2 Ohms (Internal Resistance)
Vz - 70 to 200V
Number of Pulses = 10 Pulses
Pulse 5: Typical Vz max versus Pulse duration and Rs
VJ20MA0160K
50ms
100ms
200ms
400ms
VJ13PA0160K
50ms
100ms
200ms
400ms
VJ14PA0160K
50ms
100ms
200ms
400ms
VJ15PA0160K
50ms
100ms
200ms
400ms
VJ32PA0160K
50ms
100ms
200ms
400ms
34
0.5 Ohm
33
31
27
28
0.5 Ohm
44
36
33
29
0.5 Ohm
60
46
37
32
0.5 Ohm
98
66
50
41
0.5 Ohm
146
105
72
54
1 Ohm
34
31
28
30
1 Ohm
48
39
33
28
1 Ohm
68
52
41
35
1 Ohm
116
80
60
47
1 Ohm
186
131
88
67
2 Ohms
39
34
33
34
2 Ohms
57
46
39
34
2 Ohms
85
62
50
43
2 Ohms
150
104
78
58
2 Ohms
200
179
113
96
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WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
Glass Encapsulated SMD Varistor MLV
(VJ12, 20, 13, 14, 15)
Industrial MLV Range – M0 Series
INDUSTRIAL MLV RANGE – VJ12, 20, 13, 14, 15 M0 SERIES
FEATURES
GENERAL CHARACTERISTICS
• Glass encapsulation device with very low leakage current
under DC operating conditions
• Device available in case size 1206, 1210, 1812, 2220
(3220)
• Nickel and Tin (100%) plated Termination (Hybrid AgPdPt
termination available upon request)
• Bi-Directional protection. Fast Turn-On Time.
• Excellent transient clamping characteristics up to
1200amps peak current
• Multi strike capability. Provide EMC Capacitance
• RoHS Compliant
Storage Temperature: -55ºC to +150ºC
Operating Temperature: -55ºC to +125ºC
Type
Case Size
Vrms
VDC
(V)
(V)
VJ20M00140K--VJ13M00140K--VJ14M00140K--VJ15M00140K--VJ20M00170K--VJ13M00170K--VJ14M00170K--VJ15M00170K--VJ20M00200K--VJ13M00200K--VJ14M00200K--VJ15M00200K--VJ20M00250K--VJ13M00250K--VJ14M00250K--VJ15M00250K--VJ20M00300K--VJ13M00300K--VJ14M00300K--VJ15M00300K--VJ20M00350K--VJ13M00350K--VJ14M00350K--VJ15M00350K--VJ20M00400K--VJ13M00400K--VJ14M00400K--VJ15M00400K--VJ20M00500K--VJ13M00500K--VJ14M00500K--VJ15M00500K--VJ20M00600K--VJ13M00600K--VJ14M00600K--VJ15M00600K---
1206
1210
1812
2220
1206
1210
1812
2220
1206
1210
1812
2220
1206
1210
1812
2220
1206
1210
1812
2220
1206
1210
1812
2220
1206
1210
1812
2220
1206
1210
1812
2220
1206
1210
1812
2220
14
14
14
14
17
17
17
17
20
20
20
20
25
25
25
25
30
30
30
30
35
35
35
35
40
40
40
40
50
50
50
50
60
60
60
60
18
18
18
18
22
22
22
22
26
26
26
26
31
31
31
31
38
38
38
38
45
45
45
45
56
56
56
56
65
65
65
65
85
85
85
85
TYPICAL APPLICATIONS
Many uses to reduce transient over-voltage in the very wide
range of electronic products in the Professional, Industrial
and Consumer Applications.
(V)
Max.
Clamping
Voltage
Vp (V)
lp (A)
Maximum
Leakage
Current
µA
22±10%
22±10%
22±10%
22±10%
27±10%
27±10%
27±10%
27±10%
33±10%
33±10%
33±10%
33±10%
39±10%
39±10%
39±10%
39±10%
47±10%
47±10%
47±10%
47±10%
56±10%
56±10%
56±10%
56±10%
68±10%
68±10%
68±10%
68±10%
82±10%
82±10%
82±10%
82±10%
100±10%
100±10%
100±10%
100±10%
38
38
38
38
44
44
44
44
54
54
54
54
65
65
65
65
77
77
77
77
90
90
90
90
110
110
110
110
135
135
135
135
165
165
165
165
1
2.5
5
10
1
2.5
5
10
1
2.5
5
10
1
2.5
5
10
1
2.5
5
10
1
2.5
5
10
1
2.5
5
10
1
2.5
5
10
1
2.5
5
10
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
Breakdown
Voltage
Energy
10*1000µs
(J)
0.5
1.6
2.3
5.8
0.6
1.7
2.7
7.2
0.7
1.9
3
7.8
1
1.7
3.7
9.6
1.1
2
4.2
12
0.6
1.5
4
10
0.7
2.3
4.8
9
0.8
1.6
4.5
7
0.9
1.5
4.5
6.8
Max. Peak
Cap.
Current
Typical
8*20µs
(1KHz/0.5V)
(A)
(pF)
200
400
800
1200
200
500
800
1200
200
500
800
1200
200
500
800
1200
200
400
800
1200
200
300
500
1000
100
250
500
1000
100
250
400
800
100
250
400
800
900
1800
4200
9600
800
2500
3700
8600
550
1200
2800
6400
500
1100
2600
5800
400
1200
1800
4200
260
1200
2500
4000
190
380
800
2000
130
700
600
1400
100
600
500
1100
35
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
Glass Encapsulated SMD Varistor MLV
(VJ12, 20, 13, 14, 15)
Industrial MLV Range – M0 Series
INDUSTRIAL MLV RANGE – VJ12, 20, 13, 14, 15 M0 SERIES
V/I CHARACTERISTIC
VI Curves 18V, 22V, and 26V
Voltage (V)
150
18V, 1.6J
22V, 1.6J
26V, 1.9J
26V, 3J
100
50
0
1E-06 0.00001 0.0001 0.001 0.01
0.1
Current (A)
1
10
100
1000
VI Curves 31V, 38V, and 45V
200
31V, 1.7J
38V, 1.1J
38V, 2J
38V, 4.2J
45V, 1.5J
Voltage (V)
150
100
50
0
0.1
1E-06 0.00001 0.0001 0.001 0.01
Current (A)
1
10
100
1000
10
100
1000
VI Curves 56V, 65V, and 85V
250
Voltage (V)
200
56V
65V, 1.6J
85V, 1.5J
150
100
50
0
1E-06 0.00001 0.0001 0.001
36
0.01
0.1
Current (A)
1
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WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
Glass Encapsulated SMD Varistor MLV
(VJ14)
Telecom MLV Range – MT Series
TELECOM MLV RANGE - VJ14 MT SERIES
FEATURES
TARGET APPLICATIONS
• Effective alternative to leaded MOVs between 60 and
90 Vrsm
• High Energy Ratings up to 6 Joules with 1812 case size
• Nickel barrier or hybrid AgPdPt terminations
• Multiple Strike Capability
• Provide EMC Capacitance
• Specified in accordance to CCITT 10/1000μs Pulse test
• RoHS Compliant and IMDS Registration
• Phone Lines, ADSL Lines, and other Telecom Circuits
• Consumer Products
GENERAL CHARACTERISTICS
Storage Temperature: -55ºC to +125ºC
Operating Temperature: -55ºC to +125ºC
10/700 Telecom Test Pulse Wave-Form
CCITT 10x700µs TEST
10/700 Pulse Test Capability
Typical V1mA Drift
Without Varistor
(Open-circuit voltage)
1500
1000
With a 60Vrms Telecom Varistor
(Protection level <200V)
500
10%
0
8%
dV/V1mA
2000
Voltage
A pulse of 10 x 700μs duration as specified by CCITT or IEC
61000-4-5 is often used to check the interference immunity
of Telecom equipment.
The curves show that the 60Vrms Varistor can reduce the
interference of the equipment from 2KV to less than 200V.
0
0.2
0.4
0.6
0.8
1
Time (ms)
1.2
1.4
1.6
60Vrms
6%
Ten pulses with a duration of 10x700μs applied at one
minute intervals are specified for telecom equipment.
The curves show the V1mA drift when more than 10 pulses
are applied.
95Vrms
4%
2%
0%
1
10
100
1000
Pulses
PART NUMBERS
Part Number
Case Size
VJ14MT0600--VJ14MT0750--VJ14MT0950---
EIA
1812
1812
1812
Operating Voltage
Vac
60
75
95
Vdc
85
100
125
CCITT
Breakdown
Max. Clamping Voltage 10 Pulses
Voltage
10*700µs
V(1mA)
V
Amp.
Amp.
100
400
45
45
120
400
45
45
150
250
45
45
l max.
8*20µs
Energy
10*1000µs
Amp.
400
400
250
Joules
6
6
5
Mean
Power
Dissipation
W
0.015
0.015
0.015
Typical
Cap.
pF
400
400
250
Hybrid termination AgPdPt (VC Range) upon request
37
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WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
Glass Encapsulated SMD Varistor MLV
(VC32)
Single Layer SLV Range – M0 Series
GENERAL DESCRIPTION
The VC32M0 Series offers the designer a surface
mount solution with higher voltage ratings and
transient energy ratings. This Single Layer
Surface Mount Varistor replaces the traditional
radial-lead Varistors with reduced size and
weight. The glass encapsulation ensures the high
performances in voltage up to 300Vrms reliability
and acid-resistance against harsh environment
like chlorite soldering flux.
FEATURES
APPLICATIONS
•
•
•
•
•
•
•
•
•
•
•
•
Lead less surface mount chip 3220 Case Size
Voltage Ratings from 175Vrms to 300 Vrms
VC32 with hybrid Ag-100% Terminations
Operating temperature from -55°C to +125°C
RoHS Compliant
LEAD-FREE COMPATIBLE
COMPONENT
MOV (Radial) Replacement
Suppression of transient on line voltage
Electric Meters
Industrial Equipment
Mains PSUs
Telecommunications
Consumer Electronics
PART NUMBERS
Part Number
VC32M01750K-VC32M00231K-VC32M00251K-VC32M02750K-VC32M00301K--
38
Operating Voltage
Vrms
175
230
250
275
300
Vdc
270
360
390
430
470
Max.
Leakage
µA
100
50
50
50
50
Max. Clamping Voltage
8*20µs
V
455
595
650
710
775
A
10
10
10
10
10
Max. Peak
Current
8*20µs
Pulse
400
400
400
400
400
Energy
10*1000µs
Cap. Typical
(1KHz/0.5V)
J
15
20
21
23
23
pF
135
100
90
80
70
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
Glass Encapsulated SMD Varistor MLV
(VJ13, 14, 15, 20)
Surface Mounting Guide
SURFACE MOUNTING GUIDE (VJ13, 14, 15, 20)
APPLICATIONS NOTES
SOLDERABILITY/LEACHING
Terminations to be well soldered after immersion in a 60/40
tin/lead solder bath at 235±5ºC for 2±1 seconds.
Terminations will resist leaching for at least the immersion
times and conditions recommendations shown below.
P/N
Termination Type
Unplated MLV
Hybrid Termination
Plated MLV
Nickel and Matte Tin
Plating Termination
VC
VJ
Solder
Tin/Lead
Solder
Temp. ºC
Immersion
Time (sec)
60/40
260±5
15 max
60/40
260±5
30±1
D2
Unplated MLV
Plated MLV
Thick
Film
Material
VJ products are compatible with a wide range of soldering
conditions consistent with good manufacturing practice for
surface mount components. This includes Pb free reflow
processes and peak temperatures up to 270ºC.
Recommended profiles for reflow and wave soldering are
show below for reference.
VC products are recommended for lead soldering application or gluing techniques.
VJ Products Lead-Free Reflow Profile
Temperature (ºC)
300
MAXIMUM TEMPERATURE 260ºC
20 - 40 SECONDS WITH 5ºC
200
60 - 150 SEC
> 217ºC
RAMP RATE
< 3ºC/s
100
D4
Nickel Layer
RECOMMENDED SOLDERING PROFILES
150
D3
VJ
Thick
Film
Material
250
D1
Solder Layer
Ceramic
Ceramic
RECOMMENDED
SOLDER PAD
LAYOUT
Electrodes
Electrodes
VC
a) The visual standards used for evaluation of solder joints
will need to be modified as lead free joints are not as
bright as with tin-lead pastes and the fillet may not be as
large.
b) Lead-free solder pastes do not allow the same self alignment as lead containing systems. Standard mounting
pads are acceptable, but machine set up may need to
be modified.
D5
REFLOW SOLDERING
Case
D1
Size
1206 4.00 (0.157)
1210 4.00 (0.157)
1812 5.60 (0.220)
2220 6.60 (0.260)
3220 10.21 (0.402)
D2
D3
D4
D5
1.00 (0.039)
1.00 (0.039)
1.00 (0.039)
1.00 (0.039)
2.21 (0.087)
2.00 (0.079)
2.00 (0.079)
3.60 (0.142)
4.60 (0.181)
5.79 (0.228)
1.00 (0.039)
1.00 (0.039)
1.00 (0.039)
1.00 (0.039)
2.21 (0.087)
1.06 (0.042)
2.05 (0.081)
3.00 (0.118)
5.00 (0.197)
5.50 (0.217)
WAVE SOLDERING
Case
D1
Size
1206 5.00 (0.197)
1210 5.00 ( 0.197)
1812 6.60 (0.260)
2220 7.60 (0.299)
3220 11.21 (0.441)
Dimensions in mm (inches)
Dimensions in mm (inches)
D2
D3
D4
D5
1.50 (0.059)
1.50 (0.059)
1.50 (0.059)
1.50 (0.059)
1.50 (0.059)
2.00 (0.079)
2.00 (0.079)
3.60 (0.142)
4.60 (0.181)
5.79 (0.228)
1.50 (0.059)
1.50 (0.059)
1.50 (0.059)
1.50 (0.059)
1.50 (0.059)
1.06 (0.042)
2.05 (0.081)
3.00 (0.118)
5.00 (0.197)
5.50 (0.217)
PREHEAT ZONE
50
0
0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
39
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
StaticGuard
AVX Multilayer Ceramic Transient Voltage Suppressors
ESD Protection for CMOS, Bi Polar and SiGe Based Systems
GENERAL INFORMATION
• Typical ESD failure voltage for CMOS and/or Bi Polar
is ≥ 200V.
• Low capacitance (<200pF) is required for high-speed
data transmission.
• 15kV ESD pulse (air discharge) per IEC 1000-4-2,
Level 4, generates < 20 millijoules of energy.
• Low leakage current (IL) is necessary for battery
operated equipment.
StaticGuard
AVX
Part Number
Working Working
Voltage Voltage
(DC)
(AC)
Clamping
Voltage
Test
Current
For VC
Maximum
Leakage
Current
Transient
Energy
Rating
Peak
Current
Rating
Typical
Cap
Case
Size
Elements
VC04LC18V500 _ _
≤18.0
≤14.0
50
1
10
0.02
15
40
0402
1
VC06LC18X500 _ _
≤18.0
≤14.0
50
1
10
0.05
30
50
0603
1
VC08LC18A500 _ _
≤18.0
≤14.0
50
1
10
0.10
30
80
0805
1
VC12LC18A500 _ _
≤18.0
≤14.0
50
1
10
0.10
30
200
1206
1
≤18.0
≤14.0
50
1
10
0.10
30
200
Axial
1
VA10LC18A500 _ _
Termination/Lead Finish Code
Packaging Code
VW (DC)
VW (AC)
VC
IVC
IL
ET
IP
Cap
DC Working Voltage (V)
AC Working Voltage (V)
Clamping Voltage (V @ IVC )
Test Current for VC (A, 8x20μS)
Maximum Leakage Current at the Working Voltage (μA)
Transient Energy Rating (J, 10x1000μS)
Peak Current Rating (A, 8x20μS)
Typical Capacitance (pF) @ frequency specified and 0.5 V
Not RoHS Compliant
LEAD-FREE COMPATIBLE
COMPONENT
For RoHS compliant products,
please select correct termination style.
PART NUMBER IDENTIFICATION
Chips
Axials
V C 08 LC 18 A 500 R P
40
V A 10 LC 18 A 500 R L
TERMINATION FINISH:
P = Ni/Sn Alloy (Plated)
LEAD FINISH:
L = Copper Clad Steel,
Solder Coated
PACKAGING (Pcs/Reel)
PACKAGING (Pcs/Reel)
CLAMPING VOLTAGE
CLAMPING VOLTAGE
ENERGY RATING
ENERGY RATING
WORKING VOLTAGE (0-18VDC)
WORKING VOLTAGE (0-18VDC)
LOW CAPACITANCE DESIGN
LOW CAPACITANCE DESIGN
CASE SIZE DESIGNATOR
CASE SIZE DESIGNATOR
CASE STYLE
CASE STYLE
PRODUCT DESIGNATOR
PRODUCT DESIGNATOR
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
StaticGuard
AVX Multilayer Ceramic Transient Voltage Suppressors
ESD Protection for CMOS, Bi Polar and SiGe Based Systems
TYPICAL PERFORMANCE DATA
StaticGuard ESD RESPONSE�
VC06LC18X500 Capacitance Histogram
IEC 1000-4-2
(8 Kv Contact Discharge)
50
30%
VC08LC18A500
25%
Clamping Voltage (V)
VC12LC18A500
20%
15%
10%
45
VC06LC18X500
40
35
5%
0%
45
50
55
60
Capacitance (pF @ 1MHz & 0.5V)
Measured Data
30
1
65
10
100
1000
Number of ESD Strikes
10000
Calculated
VC08LC18A500 Capacitance Histogram
StaticGuard S21
14%
14%
12%
12%
10%
10%
8%
8%
6%
6%
4%
4%
2%
2%
0
DB
VC12LC18A500
0%
61
63
65
1MHz, 0.5VRMS
67
69
71
73 75 77 79
Capacitance (pF)
Measured Data
81
83
85
87
89
VC08LC18A500
-10
-20
VC06LC18X500
-30
0%
-40
0
500
1000
1500
Frequency (MHz)
Calculated Distribution
VC12LC18A500 Capacitance Histogram
2000
2500
VI Curves - StaticGuard Products
100
14%
12%
12%
10%
10%
8%
8%
6%
6%
4%
4%
2%
2%
80
Voltage (V)
14%
60
40
20
0%
161 163 165 167 169 171 173 175 177 179 181 183 185 187 189
0%
0
10-9
10-6
10-3
Current (A)
Capacitance (pF)
1MHz, 0.5VRMS
Measured Data
Calculated Distribution
06LC
08LC
10+0
12LC
10+3
10LC
41
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WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
StaticGuard
AVX Multilayer Ceramic Transient Voltage Suppressors
TYPICAL PERFORMANCE CURVES (0402 CHIP SIZE)
VOLTAGE/CURRENT CHARACTERISTICS
PULSE DEGRADATION
Multilayer construction and improved grain structure result in
excellent transient clamping characteristics up to 20 amps
peak current, while maintaining very low leakage currents
under DC operating conditions. The VI curves below show the
voltage/current characteristics for the 5.6V, 9V, 14V, 18V and
low capacitance StaticGuard parts with currents ranging from
parts of a micro amp to tens of amps.
Traditionally varistors have suffered degradation of electrical
performance with repeated high current pulses resulting in
decreased breakdown voltage and increased leakage current. It has been suggested that irregular intergranular
boundaries and bulk material result in restricted current
paths and other non-Schottky barrier paralleled conduction
paths in the ceramic. Repeated pulsing of TransGuard® transient voltage suppressors with 150Amp peak 8 x 20μS
waveforms shows negligible degradation in breakdown
voltage and minimal increases in leakage current. This
does not mean that TransGuard® suppressors do not suffer
degradation, but it occurs at much higher current.
100
VC04LC18V500
VC040218X400
VC040214X300
VC040209X200
VC040205X150
Voltage (V)
80
ESD TEST OF 0402 PARTS
60
35
40
VC04LC18V500
30
0
10-9
10-7
10-5
10-3
10-1
10
103
BREAKDOWN VOLTAGE (Vb)
20
105
Current (A)
PEAK POWER VS PULSE DURATION
25
20
VC040214X300
15
VC040209X200
10
1300
VC040218X400
VC040205X150
1200
5
1100
10
100
1000
10000
8kV ESD STRIKES
VC040218X400
VC040214X300
VC040209X200
VC04LC18V500
VC040205X150
1000
800
INSERTION LOSS CHARACTERISTICS
0
700
-5
600
500
-10
dB
PEAK POWER (W)
900
400
300
200
VC04LC18V
VC040218X
-15 VC040214X
VC040209X
VC040205X
-20
100
0
10
100
IMPULSE DURATION (μS)
42
1000
-25
0.01
0.1
1
10
Frequency (GHz)
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WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
StaticGuard Automotive Series
Multilayer Varistors for Automotive Applications
GENERAL DESCRIPTION
The StaticGuard Automotive Series are low capacitance
versions of the TransGuard and are designed for general
ESD protection of CMOS, Bi-Polar, and SiGe based
systems. The low capacitance makes these products
suitable for use in high speed data transmission lines.
FEATURES
• AEC Q200 Qualified
• ISO 7637 Pulse 1-3 capability
• Meet 27.5Vdc Jump Start requirements
• Multi-strike capability
• Sub 1nS response to ESD strike
HOW TO ORDER
VC
AS
06
LC
18
X
500
R
P
Varistor
Chip
Series
Case
Size
Low Cap
Design
Working
Voltage
Energy
Rating
Clamping
Voltage
18 = 18.0VDC
A = 0.10 Joules
V = 0.02 Joules
X = 0.05 Joules
150 = 18V
200 = 22V
300 = 32V
400 = 42V
500 = 50V
Packaging
(PCS/REEL)
Termination
AS = Automotive
04 = 0402
06 = 0603
08 = 0805
P = Ni/S
D = 1,000
R = 4,000
T = 10,000
W = 0402
10000
ELECTRIAL CHARACTERISTICS
AVX
Part Number
Working Working
Voltage Voltage
(DC)
(AC)
Clamping
Voltage
Test
Current
For VC
Maximum
Leakage
Current
Transient
Energy
Rating
Peak
Current
Rating
Typical
Cap
Case
Size
Power
Dissipation
VCAS04LC18V500
≤18.0
≤14.0
50
1
10
0.02
15
40
0402
0.0004
VCAS06LC18X500
≤18.0
≤14.0
50
1
10
0.05
30
50
0603
0.001
VCAS08LC18A500
≤18.0
≤14.0
50
1
10
0.10
30
80
0805
0.002
VW (DC)
VW (AC)
VC
IVC
IL
ET
IP
Cap
DC Working Voltage (V)
AC Working Voltage (V)
Clamping Voltage (V @ IVC )
Test Current for VC (A, 8x20μS)
Maximum Leakage Current at the Working Voltage (μA)
Transient Energy Rating (J, 10x1000μS)
Peak Current Rating (A, 8x20μS)
Typical Capacitance (pF) @ frequency specified and 0.5 VRMS
43
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WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
StaticGuard Automotive Series
Multilayer Varistors for Automotive Applications
VOLTAGE/CURRENT CHARACTERISTICS
ELECTRICAL TRANSIENT CONDUCTION
44
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WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
StaticGuard Automotive Series
Multilayer Varistors for Automotive Applications
VOLTAGE/CURRENT CHARACTERISTICS
VCAS04LC18V500
VCAS06LC18X500
VCAS08LC18A500
45
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MultiGuard (2 & 4 Elements)
AVX Multilayer Ceramic Transient Voltage Suppression
Arrays – ESD Protection for CMOS and Bi Polar Systems
GENERAL DESCRIPTION AND COMMENTS
AVX’s Transient Voltage Suppression (TVS) Arrays address
six trends in today’s electronic circuits: (1) mandatory ESD
protection, (2) mandatory EMI control, (3) signal integrity
improvement, (4) PCB downsizing, (5) reduced component
placement costs, and (6) protection from induced slow
speed transient voltages and currents.
AVX’s MultiGuard products offer numerous advantages,
which include a faster turn-on-time (<1nS), repetitive strike
capability, and space savings. In some cases, MultiGuard
consumes less than 75% of the PCB real estate required for
the equivalent number of discrete chips. This size advantage,
coupled with the savings associated with placing only one
chip, makes MultiGuard the TVS component of choice for
SIZE: 0405
ESD protection of I/O lines in portable equipment and programming ports in cellular phones. Other applications
include differential data line protection, ASIC protection and
LCD driver protection for portable computing devices.
Where multiple lines require the ESD protection, the 4-element
0612 chip is an ideal solution. The 2-element 0405 MultiGuard
is the smallest TVS array device available in the market today.
Available with standard working voltage of 5.6V up to 18V
with low capacitance in the 3 case sizes, AVX MultiGuard
arrays offer a very broad range of integrated TVS solutions
to the design community.
SIZE: 0508
SIZE: 0612
2 Element
4 Element
ELECTRICAL CHARACTERISTICS PER ELEMENT
AVX
Part Number
Working Working Breakdown Clamping
Test
Voltage Voltage
Voltage
Voltage Current
(DC)
(AC)
For VC
Maximum
Leakage
Current
Transient
Energy
Rating
Peak
Current
Rating
Typical
Cap
MG042S05X150 _ _
5.6
4.0
8.5±20%
18
1
35
0.05
15
300
2 Element MG042L14V400 _ _
0405 Chip
14.0
10.0
18.5±12%
32
1
15
0.02
15
45
MG042L18V500 _ _
18.0
14.0
N/A
50
1
10
0.02
15
40
MG052S05A150 _ _
5.6
4.0
8.5±20%
18
1
35
0.10
30
825
MG052S09A200 _ _
9.0
6.4
12.7±15%
22
1
25
0.10
30
550
2 Element MG052S14A300 _ _
0508 Chip
14.0
10.0
19.5±12%
32
1
15
0.10
30
425
MG052S18A400 _ _
18.0
14.0
25.5±10%
42
1
10
0.10
30
225
MG052L18X500 _ _
≤18.0
≤14.0
N/A
50
1
10
0.10
20
50
MG064S05A150 _ _
5.6
4.0
8.5±20%
18
1
35
0.10
30
825
MG064S09A200 _ _
9.0
6.4
12.7±15%
22
1
25
0.10
30
550
4 Element MG064S14A300 _ _
0612 Chip
14.0
10.0
19.5±12%
32
1
15
0.10
30
425
MG064S18A400 _ _
18.0
14.0
25.5±10%
42
1
10
0.05
15
120
MG064L18X500 _ _
≤18.0
≤14.0
N/A
50
1
10
0.10
20
75
Termination Finish Code
Packaging Code
VW (DC)
VW (AC)
VB
VB Tol
46
DC Working Voltage (V)
AC Working Voltage (V)
Typical Breakdown Voltage
(V @ 1mADC )
VB Tolerance is ± from Typical Value
VC
IVC
IL
ET
IP
Cap
Clamping Voltage (V @ IVC )
Test Current for VC (A, 8x20μS)
Maximum Leakage Current at the Working Voltage (μA)
Transient Energy Rating (J, 10x1000μS)
Peak Current Rating (A, 8x20μS)
Typical Capacitance (pF) @ 1MHz and 0.5 VRMS
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
MultiGuard (2 & 4 Elements)
AVX Multilayer Ceramic
Transient Voltage Suppression Arrays
ESD Protection for CMOS and Bi Polar Systems
PHYSICAL DIMENSIONS AND PAD LAYOUT
2-ELEMENT MULTIGUARD
4-ELEMENT MULTIGUARD
W
W
W
P
P
S
S
S
X
X
P
S
S
S
T
T
T
BW
C/L
OF CHIP
BW
BW
C
L
C
L
C/L OF CHIP
C
L
C/L
OF CHIP
BL
L
BL L
BL L
SIZE: 0405
SIZE: 0508
0405 2 Element Dimensions
SIZE: 0612
mm (inches)
0612 4 Element Dimensions
mm (inches)
L
W
T
BW
BL
P
S
L
W
T
BW
BL
P
X
S
1.00±0.15
1.37±0.15
0.66 MAX
0.36±0.10
0.20±0.10
064 REF
0.32±0.10
1.60±0.20
3.20±0.20
1.22 MAX
0.41±0.10
0.76 REF
1.14±0.10
0.38±0.10
(0.063±0.008)
(0.126±0.008)
0.18 +0.25
-0.08
(0.039±0.006) (0.054±0.006) (0.026 MAX) (0.014±0.004) (0.008±0.004) (0.025 REF) (0.013±0.004)
0508 2 Element Dimensions
L
W
T
BW
1.25±0.20
2.01±0.20
1.02 MAX
0.41±0.1
(0.049±0.008) (0.079±0.008) (0.040 MAX) (0.016±0.004) (0.007
+0.25
-0.08
+.010
-.003
)
(0.030 REF) (0.045±0.004) (0.015±0.004)
mm (inches)
BL
0.18
(0.048 MAX) (0.016±0.004) (0.007+.010
)
-.003
P
S
0.76 REF
0.38±0.10
(0.030 REF) (0.015±0.004)
Pad Layout Dimensions
mm (inches)
Pad Layout Dimensions
mm (inches)
E
E
D
A
0.46
(0.018)
B
C
D
E
0405 2 Element
0.74
1.20
0.38
0.64
(0.029) (0.047) (0.015) (0.025)
D
A
A
B
B
C
D
E
0612 4 Element
0.89 1.65
2.54
0.46
0.76
(0.035) (0.065) (0.100) (0.018) (0.030)
C
A
B
C
E
D
A
0.89
(0.035)
B
C
D
A
E
0508 2 Element
1.27
2.16
0.46
0.76
(0.050) (0.085) (0.018) (0.030)
B
C
LEAD-FREE COMPATIBLE
COMPONENT
HOW TO ORDER
MG
04
2
MultiGuard
Case
Size
Configuration
04 = 0405
05 = 0508
06 = 0612
2 = 2 Elements
4 = 4 Elements
L
14
A
300
Style
Working
Energy
Clamping
Voltage
Voltage
Rating
S = Standard
Construction 05 = 5.6VDC A = 0.10 Joules
09 = 9.0VDC V = 0.02 Joules
L = Low
Capacitance 14 = 14.0VDC X = 0.05 Joules
18 = 18.0VDC
150 = 18V
200 = 22V
300 = 32V
400 = 42V
500 = 50V
T
P
Packaging Termination
Finish
(PCS/REEL)
D = 1,000
R = 4,000
T = 10,000
P = Ni/Sn Alloy
(Plated)
47
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
MultiGuard (2 & 4 Elements)
AVX Multilayer Ceramic
Transient Voltage Suppression Arrays
ESD Protection for CMOS and Bi Polar Systems
TYPICAL PERFORMANCE CURVES – VOLTAGE/CURRENT CHARACTERISTICS
Multilayer construction and improved grain structure result in
excellent transient clamping characteristics in excess of 30
amps (20 amps on MG064L18X500) peak current while
maintaining very low leakage currents under DC operating
conditions. The VI curves below show the voltage/current
characteristics for the 5.6V, 9V, 14V and 18V parts with currents ranging from fractions of a micro amp to tens of amps.
9.0V and 14.0V
50
20
40
Voltage (V)
Voltage (V)
5.6V
25
15
10
5
30
20
10
0
10-9
10-6
10-3
Current (A)
10+0
0
10-9
10+3
MG064S05A150
10-6
10-3
Current (A)
MG064S09A200
10+3
MG064S14A300
18V
MG064L18X500
100
70
80
60
50
60
Voltage (V)
Voltage (V)
10+0
40
40
30
20
20
0
10-9
10-6
10-3
Current (A)
10+0
10
10-9
10+3
10-6
10-3
Current (A)
10+0
10+3
MG064L18X500
MG064S18A400
TYPICAL PERFORMANCE CURVES – TEMPERATURE CHARACTERISTICS
MultiGuard suppressors are designed to operate over the full temperature range from -55°C to +125°C.
TYPICAL ENERGY DERATING VS TEMPERATURE
1.25�
1.0�
40
0.8�
30
Energy Derating
Voltage as a Percent of
Average Breakdown Voltage
Temperature Dependence of Voltage
100
90
80
70
60
50
20
10
10-9
10-8
10-7
10-6
10-5
10-4
10-3
25 C
0.4�
10-2
Current (A)
-40 C
0.6�
0.2�
85 C
125 C
0
-60 -40 -20
0
20
40
60
80
100 120
140 160
48
TYPICAL BREAKDOWN AND CLAMPING VOLTAGES
VS TEMPERATURE - 5.6V
20
VC
15
5.6V
VB
10
5
-55
-40
-20
0
20
40
60
Temperature ( o C)
80
100
120
140
150
Typical Breakdown (VB )
and Clamping (VC ) Voltages
Typical Breakdown (VB )
and Clamping (VC ) Voltages
o
�Temperature ( �C)
TYPICAL BREAKDOWN AND CLAMPING VOLTAGES
VS TEMPERATURE - 18V
50
( VC )
40
30
20
-55
18V
-40
( VB )
-20
0
20
40
60
Temperature ( o C)
80
100
120
140
150
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
MultiGuard (2 & 4 Elements)
AVX Multilayer Ceramic
Transient Voltage Suppression Arrays
ESD Protection for CMOS and Bi Polar Systems
TRANSIENT VOLTAGE SUPPRESSORS – TYPICAL PERFORMANCE CURVES
MG064L18X500
MG064S18A400
MG064S14A300
MG064S09A200
MG064S05A510
0
100
200
300
400
500
600
700
800
900 1000
CAPACITANCE (pF) DISTRIBUTION
APPLICATION
KEYBOARD
CONTROLLER 74AHCT05
MUX BUS
Transmitter
FERRITE
BEAD
DATA
Receiver
14V - 18V 0.1J
14V - 18V 0.02J
74AHCT05
FERRITE
BEAD
CLOCK
14V - 18V 0.1J
49
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WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
AntennaGuard 0402/0603
AVX Multilayer Ceramic Transient Voltage Suppressors
ESD Protection for Antennas and Low Capacitor Loading Applications
GENERAL DESCRIPTION
RF antenna/RF amplifier protection against ESD events is
a growing concern of RF circuit designers today, given the
combination of increased signal “gain” demands, coupled with
the required downsizing of the transistor package. The ability to
achieve both objectives is tied to a reduced thickness of the
SiO 2 gate insulator layer within the semiconductor. The
corresponding result of such a change increases the Power
Amplifier’s (PA’s) vulnerability to ESD strikes — a common event
with handheld electronic products with RF transmitting and/or
receiving features.
AVX’s 0402/0603 AntennaGuard products are an ultra-low
capacitance extension of the proven TransGuard® TVS (transient
voltage suppression) line of multilayer varistors. RF designers
now have a single chip option over conventional protection
methods (passive filters with diode clamps), which not only gives
superior performance over traditional schemes, but also
provides the added benefits of reduced PCB real estate and
lower installation costs.
AVX’s AntennaGuard products are available in capacitance
ratings of ≤3pF (0402 & 0603 chips) and ≤12pF (0603 chip).
These low capacitance values have low insertion loss, as well as
give other TransGuard ® advantages such as small size,
sub-nanosecond response time, low leakage currents and
unsurpassed reliability (FIT Rate of 0.2) compared to diodes.
FEATURES
APPLICATION
• Smallest TVS Component
• Fastest Response Time to
ESD Strikes
• Standard EIA Chip Sizes
• Chip Placement Compatible • Two Cap Values
(≤3 and ≤12pF)
• ESD Protection for RF Amplifiers
• Laser Drivers
HOW TO ORDER
VC
04
AG
18
3R0
Y
A
T
x
Varistor Chip Size Varistor Series Working Capacitance Non-Std.
Not
Termination
Reel
Chip 04 = 0402 AntennaGuard
Voltage
3pF = 3R0
Cap
Applicable T = Ni/Sn Alloy Size
06 = 0603
(DC)
12pF = 120 Tolerance
(Plated)
1 = 7"
(Maximum)
3 = 13"
W = 7"
(0402 only)
x
Reel
Quantity
A = 4,000
or 10,000
(i.e., 1A = 4,000
3A = 10,000)
WA = 10,000
LEAD-FREE COMPATIBLE
COMPONENT
50
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
AntennaGuard 0402/0603
AVX Multilayer Ceramic Transient Voltage Suppressors
ESD Protection for Antennas and Low Capacitor Loading Applications
ANTENNAGUARD CATALOG PART NUMBERS/ELECTRICAL VALUES
AVX Part Number
VW (DC)
VW (AC)
IL
Cap
Case Size
Elements
VC04AG183R0YAT_ _
VC06AG183R0YAT_ _
VC06AG18120YAT_ _
≤18
≤18
≤18
≤14
≤14
≤14
0.1
0.1
0.1
3
3
12
0402
0603
0603
1
1
1
Termination Finish Code
Packaging Code
VW (DC)
VW (AC)
IL
Cap
DC Working Voltage (V)
AC Working Voltage (V)
Maximum Leakage Current at the Working Voltage (μA)
Maximum Capacitance (pF) @ 1 MHz and 0.5 Vrms; VC06AG18120YAT capacitance tolerance: +4, -2pF
PHYSICAL DIMENSIONS
mm (inches)
0402
0603
Length
1.0 (0.039) ±0.1 (0.004)
1.6 (0.063) ±0.15 (0.006)
Width
0.5 (0.020) ±0.1 (0.004)
0.8 (0.031) ±0.15 (0.006)
Thickness
Termination Band Width
0.6 Max. (0.024)
0.9 Max. (0.035)
0.25 (0.010) ±0.15 (0.006)
0.35 (0.014) ±0.15 (0.006)
51
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
AntennaGuard 0402/0603
AVX Multilayer Ceramic Transient Voltage Suppressors
ESD Protection for Antennas and Low Capacitor Loading Applications
Antenna Varistors
AVX offers a series of 0402 and 0603 chip varistors,
designated the AntennaGuard series, for RF antenna/RF
amplifier protection. These devices offer ultra-low capacitance (<3pF in 0402 chips, and ≤3pF & ≤12pF in 0603
packages), as well as low insertion loss. Antenna varistors
can replace output capacitors and provide ESD suppression
in cell phones, pagers and wireless LANs.
It is very common to employ some form of a FET in many
types of efficient/miniature RF amplifiers. Typically, these RF
transistors have nearly ideal input gate impedance and
outstanding noise figures. However, FETs are very susceptible to ESD damage due to the very thin layer of SiO2 uses as
the gate insulator. The ultra-thin SiO2 layer is required to
improve the gain of the transistor. In other words, the upside
of the performance enhancement becomes the downside of
the transistors survival when subjected to an ESD event.
ESD damage to the RF Field Effect Transistors (FETs) is a
growing concern among RF designers due to the following
trends: (1) RF amplifiers continue to shrink in size, and (2)
FET gains figures continue to increase. Both trends relate to
decreasing gate oxide thickness, which in turn, is directly
proportional to increased ESD sensitivity. As miniaturization
trends accelerate, the traditional methods to protect against
ESD damage (i.e., PC board layout, passive filters, and diode
clamps) are becoming less and less effective.
AVX’s AntennaGuard varistor can be used to protect the FET
and offer superior performance to the previously mentioned
protection methods given above. The standard EIA 0603
chip size, and particularly the 0402 chip, offer designers an
ESD protection solution consistent with today’s downsizing
trend in portable electronic products. Savings in component
volume up to 86%, and PC board footprint savings up to
83% are realistic expectations. These percentages are based
upon the following table and Figures 1A and 1B.
mm (inches)
Pad Dimensions
Suppression Device
D1
D2
D3
D4
D5
®
AVX 0402 TransGuard
1.70 (0.067)
0.61 (0.024)
0.51 (0.020)
0.61 (0.024)
0.51 (0.020)
AVX 0603 TransGuard®
2.54 (0.100)
0.89 (0.035)
0.76 (0.030)
0.89 (0.035)
0.76 (0.030)
Competitor’s SOT23 Diode
See Below
0.96
(0.037)
D2
0.96
(0.037)
D1
D3
2.0
(0.079)
D4
0.9
(0.035)
D5
Figure 1A. 0402/0603
IR Solder Pad Layout
52
0.8
(0.031)
mm (inch
Figure 1B. SOT23- Solder Pad Layout
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AntennaGuard 0402/0603
AVX Multilayer Ceramic Transient Voltage Suppressors
ESD Protection for Antennas and Low Capacitor Loading Applications
Antenna varistors offer excellent ESD repetitive strike capability compared to a SOT23 diode when subjected to IEC
61000-4-2 8Kv contact discharge. A performance summary
is shown in Figure 2.
ANTENNA VARISTOR S21
0
-5
VC04AG183R0
VC06AG183R0
VC06AG18120
70
0603 - 12pF
500
60
480
50
0603 - 3pF
460
40
440
30
420
20
400
10
-10
0402 - 3pF
380
� 100
0
dB
520
Breakdown Voltage (Vb) — 0603 12pF Rating
Breakdown Voltage (Vb) — 0402 & 0603 3pF Ratings
ESD TEST OF ANTENNAGUARD RATINGS
-15
-20
-25
-30
0.01
0.1
1.0
10
Frequency (GHz)
Figure 5. Antenna vs Frequency
0
10,000
1000
Typical implementations of the antenna varistors are shown
for use in cell phone, pager and wireless LAN applications in
Figures 6A, 6B and 6C.
8kV ESD Strikes
Figure 2. Repetitive 8kV ESD Strike
Antenna varistors also turn on and divert ESD overvoltages
at a much faster rate than SOT23 devices (typically 300pS
vs 1500pS - 5000pS). See Figure 3.
FET
PEAK
100%
90%
30ns
2.2pF
SITVS TURN ON TIME
1.5nS to 5nS
2.7pF
Figure 6A. Cell Phone
60ns
1ns
MLV
TURN ON TIME
300pS to 700pS
TIME (ns)
30ns
60ns
Figure 3. Turn On Time
The equivalent circuit model for a typical antenna varistor is
shown in Figure 4.
12pF
Ln
Ln = BODY INDUCTANCE
RV
RI
C1
C1 = DEVICE CAPACITANCE
RV = VOLTAGE VARIABLE RESISTOR
Figure 6B. Pager
RI = INSULATION RESISTANCE
Figure 4. Antenna Varistor
The varistor shown exhibits a capacitance of ≤3pF which
can be used to replace the parallel capacitance typically
found prior to the antenna output of an RF amplifier. In the
off state, the varistor acts as a capacitor and helps to filter
RF output. The varistor is not affected by RF output power
or voltage and has little insertion loss. See Figure 3.
FET
3pF
Varistor
Figure 6C.
53
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AntennaGuard/SPV
AVX Multilayer Ceramic Transient Voltage Suppressors
ESD Protection for any Circuit Sensitive to Capacitance
GENERAL DESCRIPTION
AVX offers ultra-low capacitance ESD protection in the Sub
1pF range for use in circuits that are sensitive to capacitance.
The Sub pF Varistor (SPV) is available in 0.8pF and 0.4pF
capacitance values in a compact 0402 low profile package.
SPV devices provide excellent response time to ESD strikes
to protect sensitive circuits from over voltage conditions.
The development of new information processing technologies
call for ever increasing digital system speeds. Higher speeds
necessitate the use of ultra-low capacitance values in order to
minimize signal distortion.
FEATURES
APPLICATIONS
•
•
•
•
•
•
•
• Antennas
• Optics
• HDMI
• RF circuits
• FlexRay
• Portable devices
• Analog sensors
• Any circuit sensitive to capacitance
High Reliability
Capacitance <1pF
Bi-Directional protection
Fastest response time to ESD strikes
Multi-strike capability
Low insertion loss
Low profile 0402 case size
HOW TO ORDER
VC
H4
AG
10
0R8
M
Varistor Chip Size Varistor Series Working Capacitance Tolerance
Chip
Thin 0402 AntennaGuard
Voltage 0R8 = 0.8pF M = ±20%
10 = 10V 0R4 = 0.47pF
15 = 15V
A
T
W
A
N/A
Termination
T = Ni/Sn Alloy
Reel
Size
W = 7"
Reel
Quantity
A = 10k
ANTENNAGUARD CATALOG PART NUMBERS/ELECTRICAL VALUES
AVX Part Number
VW (DC)
VB
IL
Cap
VCH4AG100R8MA
VCH4AG150R8MA
VCH4AG150R4MA
≤10
≤15
≤15
125
125
135
<10 nA
<10 nA
<100 nA
0.8
0.96 pF Max
0.47 pF Max
VW (DC)
VB
IL
Cap
Freq
54
DC Working Voltage (V)
Typical Breakdown Voltage (V @ 1mADC)
Typical leakage current at the working voltage
Typical capacitance (pF) @ frequency specified and 0.5VRMS
Frequency at which capacitance is measured (M = 1MHz)
Cap Tolerance 3db Freq (MHz)
±20%
Max
±20%
5800
5800
6700
Case Size
LP 0402
LP 0402
LP 0402
LEAD-FREE COMPATIBLE
COMPONENT
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WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
AntennaGuard/SPV
AVX Multilayer Ceramic Transient Voltage Suppressors
ESD Protection for any Circuit Sensitive to Capacitance
V/I Curve - SPV
S21 Transmission Characteristics -SPV
5
200
150
-5
Volt (V)
Insertion Loss (dB)
0
-10
100
50
-15
-20
10
0
100
1000
Frequency (MHz)
VCH4AG150RMA-250
10000
1.0E-09
100000
1.0E-06
1.0E-03
Current (A)
VCH4AG150R8MA-500
VCH4AG150R4MA-250
VCH4AG150R8MA-500
ESD Wave Absorption Characteristics
Std 8 kV Pulse No Part
VCH4AG150R8
VCH4AG150R4
2000
Voltage (V)
1500
1000
500
0
0
20
40
60
80
100
Time (nsec)
T
t
mm (inches)
t
W
Size (EIA)
0402
Length (L)
Width (W)
Max Thickness (T)
Terminal (t)
1.00 ±0.10 (0.040 ± 0.004)
0.50 ±0.10 (0.020 ±0.004)
0.35 (0.014)
0.25±0.15 (0.010±0.006)
L
55
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AntennaGuard Automotive Series
Multilayer Varistors for Automotive Applications
GENERAL DESCRIPTION
AVX 0402/0603 Automotive AntennaGuard products are an
ultra low capacitance extension to the Automotive
TransGuard® Series and are intended for use in RF and
other capacitance sensitive circuits.
These low capacitance values have low insertion loss, low
leakage current and unsurpassed reliability compared to
diode options. These advantages combined with size
advantages and bi-directional protection make the
AntennaGuard the right choice for automotive applications
including RF circuits, sensors, high-speed signal
transmission lines, etc…
FEATURES
• AEC Q200 Qualified
• 25kV ESD rating
• Meet 27.5Vdc Jump Start requirements
• Multi-strike capability
• Sub 1nS response to ESD strike
HOW TO ORDER
VC
AS
Varistor
Series
Chip
AS = Automotive
06
AG
18
Case
Size
Type
Working
Voltage
04 = 0402
06 = 0603
08 = 0805
3R0
Y
A
Capactance Non-Std
Cap Tol
3R0 = 3pF
18 = 18.0VDC
120 = 12pF
T
R
Not
Termination
Reel
Applicable T = Ni/Sn Plated T = Ni/Sn Plated
Y = Max
1 = pd/Ag/Pt
1 = pd/Ag/Pt
P
Reel
A = 4K
or 10K
ELECTRIAL CHARACTERISTICS
AVX
Part Number
Working Working
Voltage Voltage
(DC)
(AC)
Maximum
Leakage
Current
Typical
Cap
Case
Size
Elements
Jump
Start
VCAS04AG183R0Y
≤18.0
≤14.0
0.1
3
0402
1
27.5
VCAS06AG183R0Y
≤18.0
≤14.0
0.1
3
0603
1
27.5
VCAS06AG18120Y
≤18.0
≤14.0
0.1
12
0603
1
27.5
VW (DC)
VW (AC)
IL
Cap
Jump Start
56
DC Working Voltage (V)
AC Working Voltage (V)
Maximum Leakage Current at the Working Voltage (μA)
Typical Capacitance (pF) @ frequency specified and 0.5 VRMS
Maximum Jump start voltage at 5 minutes
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WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
AntennaGuard Automotive Series
Multilayer Varistors for Automotive Applications
S21 TRANSMISSION CHARACTERISTICS
S21 Response
ESD CHARACTERISTICS
AEC-Q200 Pulse Test
AEC-Q200-002
57
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WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
AntennaGuard Automotive Series
Multilayer Varistors for Automotive Applications
ELECTRICAL TRANSIENT CONDUCTION
Electrical Transient Conduction
ISO 7637 Pulse 1-3
092011
58
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WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
USB Series Varistor
Multilayer Varistors for Universal Serial BUS Protection
GENERAL DESCRIPTION
USB Series varistors are designed to protect the high speed data lines
against ESD transients. They have very low capacitance and fast turn on
times that make this series ideal for data and transmission lines with high
data rates. The unique design enables these devices to meet the rigorous
testing criteria of the IEC 61000-4-2 standards. New and improved manufacturing process has created these USB series to be one of the best plated varistors in the market today.
FEATURES
• Zinc Oxide (ZnO) based ceramic semiconductor devices with non-linear
voltage-current characteristics
• Bi-directional device, similar to back-to-back Zener diodes plus an EMC
capacitor in parallel
• Entire structure made up of conductive ZnO grains surrounded by electrically insulating barriers, creating varistor-like behavior
• Electrical advantages over Zener diodes are repetitive strike capability,
high in rush current capability, fast turn-on-time and EMI attenuation
• Protects against ESD to meet IEC 61000-4-2 15kV (air) and 8kV
(contact)
• Low capacitance for high speed data lines
• Available in discrete and array packages (2 and 4 element)
• Low Clamping Voltage
• Low Operating Voltage
• Response time is < 1ns
PINOUT CONFIGURATION
USB0001/0005/0006
0603 and 0402 (Single)
MECHANICAL CHARACTERISTICS
• Available in EIA 0603 (Single), 0405 (Dual) and 0612 (Quad) cases
• Plated Tin over Nickel Barrier
• Packaged in Tape & Reel
USB0002
0405 (Dual)
PART NUMBERING
USB
0001
D
P
Style
Case Size
0001 = 0603 (Single)
0002 = 0405 (2-Element)
0004 = 0612 (4-Element)
0005 = 0402 (Single)
0006 = 0402 (Single)
Packaging Code
(Reel Size)
D = 7" (1,000 pcs.)
R = 7" (4,000 pcs.)
T = 13" (10,000 pcs.)
W = 7" (10,000 pcs.
0402 only)
Termination
P = Ni/Sn Alloy (Plated)
USB0004
0612
(Quad)
TYPICAL APPLICATIONS
• USB BUS Lines/Firewire Data
BUS Lines
• I/O BUS Lines
• 10/100/1000 Ethernet
Transmission Lines
•
•
•
•
Video Card Data Lines
Handheld Devices
Laptop Computers
LCD Monitors
LEAD-FREE COMPATIBLE
COMPONENT
59
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WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
USB Series Varistor
Multilayer Varistors for Universal Serial BUS Protection
RATINGS
Air Discharge ESD
Contact Discharge ESD
Operating Temperature
Soldering Temperature
15kV
8kV
–55°C to +125°C
230°C
PERFORMANCE CHARACTERISTICS
AVX Part No.
USB0001_ _
USB0002_ _
USB0004_ _
USB0005_ _
USB0006_ _
VW (DC)
≤18
≤18
≤18
≤18
≤18
VW (AC)
≤14
≤14
≤14
≤14
≤14
VB
120
70
100
300
65
IL
2
2
2
2
2
ET
0.015
0.015
0.015
0.015
0.015
IP
4
4
4
4
4
Cap.
10
10
10
3
6
Case Size
0603
0405
0612
0402
0402
Elements
1
2
4
1
1
Termination Finish Code
Packaging Code
VW (DC)
VW (AC)
VB
IL
ET
IP
Cap
DC Working Voltage (V)
AC Working Voltage (V)
Typical Breakdown Voltage (V @ 1mADC )
Maximum Leakage Current at the Working Voltage (μA)
Transient Energy Rating (J, 10x1000μS)
Peak Current Rating (A, 8x20μS)
Typical Capacitance (pF) @ 1 MHz and 0.5Vrms
USB TYPICAL S21 CHARACTERISTICS
0
-5
USB0001
Insertion Loss (dB)
-10
USB0005
-15
USB0006
USB0002
-20
USB0004
-25
-30
-35
100
1000
10000
Frequency (MHz)
Typical Pulse Rating Curve
Peak Power (W)
10000
1000
100
10
10
100
1000
10000
Pulse Duration (µS)
60
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WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
USB Series Varistor
Multilayer Varistors for Universal Serial BUS Protection
PHYSICAL DIMENSIONS AND PAD LAYOUT
USB0002 (Dual)
USB0001/5/6 (Single)
USB0004 (Quad)
W
W
P
P
T
W
T
BL
T
BW
L
BW
BL
L
BL
L
D
E
E
A
D
D
C
B
A
A
B
B
C
C
mm (inches)
L
USB0001
W
T
1.60±.15
0.80±0.15
0.90 Max
(0.063±0.006) (0.032±0.006) (0.035 Max.)
BL
P
A
USB0001
B
C
D
E
N/A
0.35±0.15
(0.014±0.006)
N/A
0.89
(0.035)
0.76
(0.030)
2.54
(0.100)
0.76
(0.030)
N/A
0.74
(0.029)
1.20
(0.047)
0.30
(0.012)
0.64
(0.025)
1.65
(0.065)
2.54
(0.100)
0.46
(0.018)
0.76
(0.030)
1.70
(0.067)
0.51
(0.020)
N/A
USB0002
USB0002
1.00±0.15
1.37±0.15
0.66 Max
0.36±0.10
0.20±0.10
0.64 REF
(0.039±0.006) (0.054±0.006) (0.026 Max.) (0.014±0.004) (0.008±0.004) (0.025 REF)
USB0004
0.46
(0.018)
USB0004
1.60±0.20
3.20±0.20
1.22 Max
0.41±0.10
0.18+0.25/–0.08
0.76 REF
(0.063±0.008) (0.126±0.008) (0.048 Max.) (0.016±0.004) (0.007+.01/–.003) (0.030 REF)
USB0005 / USB0006
1.0±0.10
0.50±0.10
0.60 Max
(0.040±0.004) (0.020±0.004) (0.024 Max.)
mm (inches)
BW
0.89
(0.035)
USB0005 / USB0006
N/A
0.25±0.15
(0.010±0.006)
N/A
0.61
(0.024)
0.51
(0.020)
61
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
USB Series Varistor
Multilayer Varistors for Universal Serial BUS Protection
APPLICATIONS
D+
USB
Port
D-
USB
CONTROLLER
USB0002
USB Port Protection
TX+
TX-
Ethernet
Port
USB0002
Ethernet
PHY
RX+
RX-
USB0002
Ethernet Port Protection
62
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
CAN BUS Varistor
GENERAL DESCRIPTION
The CAN BUS varistor is a zinc oxide (ZnO) based ceramic semiconductor device with nonlinear voltage-current characteristics (bi-directional) similar to back-to-back Zener diodes and an
EMC capacitor in parallel (see equivalent circuit model). They have the added advantage of
greater current and energy handling capabilities as well as EMI/RFI attenuation. Devices are
fabricated by a ceramic sintering process that yields a structure of conductive ZnO grains
surrounded by electrically insulating barriers, creating varistor like behavior.
HOW TO ORDER
CAN
0001
Style
Controlled
Area
Network
Varistor
Series
Case Size
0001 = 0603 Discrete
0002 = 0405 2-Element
0004 = 0612 4-Element
0005 = 0402 Discrete
D
P
Packaging Code
(Reel Size)
D = 7" reel (1,000 pcs.)
R = 7" reel (4,000 pcs.)
T = 13" reel (10,000 pcs.)
W = 7" reel (10,000 pcs.)
Termination
P = Ni/Sn Alloy
(Plated)
0402, 0603
Discrete
PERFORMANCE CHARACTERISTICS
AVX Part No.
CAN0001_ _
CAN0002_ _
CAN0004_ _
CAN0005_ _
VW (DC)
≤18
≤18
≤18
≤18
VW (AC)
≤14
≤14
≤14
≤14
VB
120
70
100
33
IL
2
2
2
2
ET
0.015
0.015
0.015
0.015
IP
4
4
4
4
0405
Array
Cap.
22
22
22
37
0612
Array
Case Size
0603
0405
0612
0402
Elements
1
2
4
1
Termination Finish Code
Packaging Code
DC Working Voltage (V)
AC Working Voltage (V)
Typical Breakdown Voltage (V @ 1mADC )
Clamping Voltage (V @ IVC)
Test Current for VC (A, 8x20μS)
Maximum Leakage Current at the Working Voltage (μA)
Transient Energy Rating (J, 10x1000μS)
Peak Current Rating (A, 8x20μS)
Maximum Capacitance (pF) @ 1 MHz and 0.5Vrms
-55ºC to +125ºC
10.0
Insertion Loss (dB)
VW (DC)
VW (AC)
VB
VC
IVC
IL
ET
IP
Cap
Temp Range
CAN0001
0.0
-10.0
-20.0
CAN0005
-30.0
-40.0
-50.0
EQUIVALENT CIRCUIT MODEL
0
Discrete MLV Model
LP
RV
C
RP
Ron
Solder Pad
Where: Rv
Rp
=
≥
C
=
Ron =
Lp
=
10
100
Frequency (MHz)
1000
10000
Typical Pulse Rating Curve
10000
Peak Power (W)
To Device
Requiring
Protection
PCB
Trace
1
1000
100
10
10
100
1000
10000
Pulse Duration (µS)
Voltage Variable resistance (per VI curve)
1012 Ω
defined by voltage rating and energy level
turn on resistance
parallel body inductance
LEAD-FREE COMPATIBLE
COMPONENT
63
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WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
CAN BUS Varistor
PHYSICAL DIMENSIONS
mm (inches)
0402 Discrete
0603 Discrete
0405 Array
0612 Array
Length
1.00 ±0.10 (0.040 ±0.004)
1.60 ±0.15 (0.063 ±0.006)
1.00 ±0.15 (0.039 ±0.006)
1.60 ±0.20 (0.063 ±0.008)
Width
Thickness
Term Band Width
0.50 ±0.10 (0.020 ±0.004)
0.60 Max. (0.024 Max.)
0.25 ±0.15 (0.010 ±0.006)
0.80 ±0.15 (0.032 ±0.006)
0.90 Max. (0.035 Max.)
0.35 ±0.15 (0.014 ±0.006)
1.37 ±0.15 (0.054 ±0.006)
0.66 Max. (0.026 Max.)
0.36 ±0.10 (0.014 ±0.004)
3.20 ±0.20 (0.126 ±0.008)
1.22 Max. (0.048 Max.)
0.41 ±0.10 (0.016 ±0.010)
SOLDER PAD DIMENSIONS
mm (inches)
0405 Array
0603 Discrete
0612 Array
E
E
D
D
0.89
(0.035)
2.54
(0.100)
A
0.76
(0.030)
A
B
B
C
0.89
(0.035)
C
0.76
(0.030)
0405 Array
0612 Array
A
B
C
D
E
A
B
C
D
E
0.46
(0.018)
0.74
(0.029)
1.20
(0.047)
0.38
(0.015)
0.64
(0.025)
0.89
(0.035)
1.65
(0.065)
2.54
(0.100)
0.46
(0.018)
0.76
(0.030)
APPLICATION
AVX CAN BUS varistors offer significant advantages in general areas of
a typical CAN network as shown on
the right. Some of the advantages
over diodes include:
• space savings
• higher ESD capability @ 25kV
contact
• higher in rush current (4A) 8 x
20μS
• FIT rate ≤0.1 failures (per billion
hours)
LEDS
0
= CAN0001
Lamps
= MultiGuard
= Feedthru Cap
= Tantalum
Tachometer
(Stepper Motor)
Gauge
Motor
Drvr
Lamp/
LED Drvr
8V Reg
BATT
(Stepper Motor)
NTC Based
5V Reg
CAN
BUS
Speedometer
Temp. Sensor
Physical
Interface
F lL
l
MCU
LCD
Module
DDC
64
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WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
UltraGuard Series
ESD Protection for Low Leakage Requirements
GENERAL DESCRIPTION
Faster semiconductor clock speeds and an increasing reliance on batteries as power
sources have resulted in the need for varistors that exhibit very low leakage current.
The UltraGuard (UG) Series of AVX Transient Voltage Suppressors address this
problem.
The UG Series is the ideal transient protection solution for high clock speed integrated
circuit application, battery-operated device, backlit display, medical/instrument application, low voltage power conversion circuits and power supervisory chip sets. In addition, UltraGuard’s low leakage characteristics are also suitable for optic circuits like
LDD, SerDes, and laser diodes.
The UG Series is offered as discrete chips (0402, 0603, and 0805), 2-element packages (0405 and 0508), and 4-element packages (0612).
LEAD-FREE COMPATIBLE
COMPONENT
Discrete Chips
0402, 0603,
and 0805
2-Element Arrays
(0405 and 0508)
4-Element Arrays
(0612)
HOW TO ORDER
VC
VC=Surface
Mount Chip
UG
04
0180
L
1
W
P
Series
Case Size
04 = 0402
06 = 0603
08 = 0805
Maximum
Working
Voltage
Capacitance
UG = Low
Leakage
Series
No. of
Elements
Packaging
(pieces per
reel)
Termination
Finish
0030 = 3.0VDC
0050 = 5.0VDC
0075 = 7.5VDC
0100 = 10.0VDC
0150 = 15.0VDC
0180 = 18.0VDC
L = Low
H = High
D = 1,000
(7" reel)
R = 4,000
(7" reel)
T = 10,000
(13" reel)
W = 10,000
(7" reel,
0402 only)
P = Ni/Sn Alloy
(Plated)
HOW TO ORDER
MG
MG=Array
UG
06
0150
L
4
D
P
Series
Case Size
04 = 0405
05 = 0508
06 = 0612
Maximum
Working
Voltage
Capacitance
UG = Low
Leakage
Series
No. of
Elements
Packaging
(pieces per
reel)
Termination
Finish
0030 = 3.0VDC
0050 = 5.0VDC
0075 = 7.5VDC
0100 = 10.0VDC
0150 = 15.0VDC
L = Low
H = High
2 = 2 Elements
4 = 4 Elements
D = 1,000
(7" reel)
R = 4,000
(7" reel)
T = 10,000
(13" reel)
P = Ni/Sn Alloy
(Plated)
65
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
UltraGuard Series
ESD Protection for Low Leakage Requirements
AVX Part Number
MGUG040030L2 _ _
MGUG050030L2 _ _
MGUG060030L4 _ _
VCUG040030L1 _ _
VCUG060030L1 _ _
VCUG080030H1 _ _
VCUG080030L1 _ _
VCUG120030H1 _ _
VCUG120030L1 _ _
MGUG040050L2 _ _
MGUG050050L2 _ _
MGUG060050L4 _ _
VCUG040050L1 _ _
VCUG060050L1 _ _
VCUG080050L1 _ _
VCUG120050H1 _ _
VCUG120050L1 _ _
MGUG040075L2 _ _
MGUG050075L2 _ _
MGUG060075L4 _ _
VCUG040075L1 _ _
VCUG060075L1 _ _
VCUG080075H1 _ _
VCUG080075L1 _ _
VCUG120075H1 _ _
VCUG120075L1 _ _
MGUG040100L2 _ _
MGUG050100L2 _ _
MGUG060100L4 _ _
VCUG040100L1 _ _
VCIR(DC)
≤3.0
≤3.0
≤3.0
≤3.0
≤3.0
≤3.0
≤3.0
≤3.0
≤3.0
≤5.0
≤5.0
≤5.0
≤5.0
≤5.0
≤5.0
≤5.0
≤5.0
≤7.5
≤7.5
≤7.5
≤7.5
≤7.5
≤7.5
≤7.5
≤7.5
≤7.5
≤10.0
≤10.0
≤10.0
≤10.0
VCIR(AC)
≤2.3
≤2.3
≤2.3
≤2.3
≤2.3
≤2.3
≤2.3
≤2.3
≤2.3
≤3.5
≤3.5
≤3.5
≤3.5
≤3.5
≤3.5
≤3.5
≤3.5
≤5.3
≤5.3
≤5.3
≤5.3
≤5.3
≤5.3
≤5.3
≤5.3
≤5.3
≤7.1
≤7.1
≤7.1
≤7.1
Cap Required
Low
Low
Low
Low
Low
High
Low
High
Low
Low
Low
Low
Low
Low
Low
High
Low
Low
Low
Low
Low
Low
High
Low
High
Low
Low
Low
Low
Low
Cap
300
425
425
175
750
3000
1100
3000
1200
40
425
425
175
550
750
1050
600
40
425
425
100
425
900
325
1050
600
40
225
225
65
Freq
M
M
M
M
K
K
K
K
K
M
M
M
M
K
K
K
K
M
M
M
M
K
K
K
K
K
M
M
M
M
IL
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
Case Size
0405
0508
0612
0402
0603
0805
0805
1206
1206
0405
0508
0612
0402
0603
0805
1206
1206
0405
0508
0612
0402
0603
0805
0805
1206
1206
0405
0508
0612
0402
Elements
2
2
4
1
1
1
1
1
1
2
2
4
1
1
1
1
1
2
2
4
1
1
1
1
1
1
2
2
4
1
VCUG060100L1 _ _
VCUG080100H1 _ _
VCUG080100L1 _ _
VCUG120100H1 _ _
VCUG120100L1 _ _
MGUG040150L2 _ _
MGUG050150L2 _ _
MGUG060150L4 _ _
VCUG040150L1 _ _
VCUG060150L1 _ _
VCUG080150H1 _ _
VCUG080150L1 _ _
VCUG120150H1 _ _
VCUG040180L1 _ _
≤10.0
≤10.0
≤10.0
≤10.0
≤10.0
≤15.0
≤15.0
≤15.0
≤15.0
≤15.0
≤15.0
≤15.0
≤15.0
≤18.0
≤7.1
≤7.1
≤7.1
≤7.1
≤7.1
≤11
≤11
≤11
≤11
≤11
≤11
≤11
≤11
≤14
Low
High
Low
High
Low
Low
Low
Low
Low
Low
High
Low
High
Low
250
550
225
900
350
50
50
75
40
155
250
120
500
30
K
K
K
K
K
M
M
M
M
K
K
K
K
M
2
2
2
2
2
2
2
2
2
2
2
2
2
1
0603
0805
0805
1206
1206
0405
0508
0612
0402
0603
0805
0805
1206
0402
1
1
1
1
1
2
2
4
1
1
1
1
1
1
Termination Finish Code
Packaging Code
VCIR (DC)
VCIR (AC)
Cap Req
IL
Cap
Freq
66
DC Circuit Voltage (V)
AC Circuit Voltage (V)
Standard or Low
Maximum Leakage Current at the Circuit Voltage (μA)
Typical Capacitance (pF) @ frequency specified and 0.5 Vrms
Frequency at which capacitance is measured (K = 1kHz, M = 1MHz)
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
UltraGuard Series
ESD Protection for Low Leakage Requirements
PHYSICAL DIMENSIONS
mm (inches)
0402 Discrete
0603 Discrete
0805 Discrete
Length
Width
Thickness
Term Band Width
1.00 ±0.10 (0.040 ±0.004)
0.50 ±0.10 (0.020 ±0.004)
0.60 Max. (0.024 Max.)
0.25 ±0.15 (0.010 ±0.006)
1.60 ±0.15 (0.063 ±0.006)
0.80 ±0.15 (0.032 ±0.006)
0.90 Max. (0.035 Max.)
0.35 ±0.15 (0.014 ±0.006)
2.01 ±0.20 (0.079 ±0.008)
1.25 ±0.20 (0.049 ±0.008)
1.02 Max. (0.040 Max.)
0.71 Max. (0.028 Max.)
0405 Array
0508 Array
0612 Array
Length
Width
Thickness
Term Band Width
1.00 ±0.15 (0.039 ±0.006)
1.37 ±0.15 (0.054 ±0.006)
0.66 Max. (0.026 Max.)
0.36 ±0.10 (0.014 ±0.004)
1.25 ±0.20 (0.049 ±0.008)
2.01 ±0.20 (0.079 ±0.008)
1.02 Max. (0.040 Max.)
0.41 ±0.10 (0.016 ±0.004)
1.60 ±0.20 (0.063 ±0.008)
3.20 ±0.20 (0.126 ±0.008)
1.22 Max. (0.048 Max.)
0.41 ±0.10 (0.016 ±0.004)
SOLDER PAD DIMENSIONS
0.61
(0.024)
0.51
1.70 (0.067)
(0.020)
0.61
(0.024)
0.89
(0.035)
2.54
(0.100)
1.02
(0.040)
3.05
(0.120)
0.76
(0.030)
0.89
(0.035)
0.51
(0.020)
mm (inches)
1.02
(0.040)
1.02
(0.040)
0.76
(0.030)
0402
1.27
(0.050)
0603
0805
E
0612 4-Element Array
E
D
A
B
C
D
E
0.89
(0.035)
1.65
(0.065)
2.54
(0.100)
0.46
(0.018)
0.76
(0.030)
D
A
A
B
B
C
C
2-Element Arrays
A
B
C
D
E
0405
0.46
(0.018)
0.74
(0.029)
1.20
(0.047)
0.38
(0.015)
0.64
(0.025)
0508
0.89
(0.035)
1.27
(0.050)
2.16
(0.085)
0.46
(0.018)
0.76
(0.030)
67
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
TransFeed
AVX Multilayer Ceramic Transient Voltage Suppressors
TVS Protection and EMI Attenuation in a Single Chip
GENERAL DESCRIPTION
Schematic Diagram
AVX has combined the best electrical characteristics of its
TransGuard® Transient Voltage Suppressors (TVS) and its
Feedthru Capacitors into a single chip for state-of-the-art
overvoltage circuit protection and EMI reduction over a
broad range of frequencies. This unique combination of
multilayer ceramic construction in a feedthru configuration
gives the circuit designer a single 0805 chip that responds
to transient events faster than any TVS device on the market today, and provides significant EMI attenuation when in
the off-state.
The reduction in parallel inductance, typical of the feedthru
chip construction when compared to the construction of
standard TVS or ceramic capacitor chips, gives the
TransFeed product two very important electrical advantages: (1) faster “turn-on” time. Calculated response times
of <200 pSec are not unusual with this device, and measured response times range from 200 – 250 pSec. The
TransFeed “turn-on” characteristic is less than half that of
an equivalent TransGuard® part — and TransGuards® clamp
transient voltages faster than any other bipolar TVS solution
such as diodes; (2) the second electrical advantage of
lower parallel inductance, coupled with optimal series
inductance, is the enhanced attenuation characteristics of
the TransFeed product. Not only is there significantly
greater attenuation at a higher self-resonance frequency,
but the roll-off characteristic becomes much flatter, resulting in EMI filtering over a much broader frequency spectrum. Typical applications include filtering/protection on
Microcontroller I/O Lines, Interface I/O Lines, Power Line
Conditioning and Power Regulation.
IN
OUT
Electrical Model
IN
LS
LS
RV
OUT
RP
C
RON
LP
TYPICAL APPLICATIONS
• Fingerprint ID Circuit
• Magnetic Field Circuit
• LCD Dashboard Driver
Where designers are concerned with both transient voltage
protection and EMI attenuation, either due to the electrical
performance of their circuits or due to required compliance
to specific EMC regulations, the TransFeed product is an
ideal choice.
HOW TO ORDER
2
V
Varistor
F
1
Feedthru
Capacitor
Chip Size
2 = 0805
3 = 0612
05
A
Voltage
05 = 5.6VDC
09 = 9.0VDC
14 = 14.0VDC
18 = 18.0VDC
No. of
Elements
150
Varistor
Clamping
Voltage
150 = 18V
200 = 22V
300 = 32V
400 = 42V
500 = 50V
Y
2
E
DC
Resistance
D
P
Packaging
Code
Pcs./Reel
1 = 0.150 Ohms
2 = 0.200 Ohms
3 = 0.250 Ohms
D = 1,000
R = 4,000
T = 10,000
Energy
Rating
Capacitance
Tolerance
Feedthru
Current
X = 0.05J
A = 0.1J
C = 0.3J
Y = +100/-50%
D = 500 mA
E = 750 mA
F = 1.0 Amp
Termination Finish
P = Ni/Sn Alloy (Plated)
LEAD-FREE COMPATIBLE
COMPONENT
68
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
TransFeed
AVX Multilayer Ceramic Transient Voltage Suppressors
TVS Protection and EMI Attenuation in a Single Chip
TRANSFEED ELECTRICAL SPECIFICATIONS
AVX
Part Number
Working Working Breakdown Clamping Maximum
Voltage Voltage
Voltage
Voltage
Leakage
(DC)
(AC)
Current
Transient
Energy
Rating
Peak
Current
Rating
Typical
Cap
DC
Resistance
Maximum
Feedthru
Current
V2F105A150Y2E _ _
5.6
4.0
8.5±20%
18
35
0.10
30
800
0.200
0.75
V2F105C150Y1F _ _
5.6
4.0
8.5±20%
18
35
0.30
120
2500
0.150
1.00
V2F109A200Y2E _ _
9.0
6.4
12.7±15%
22
25
0.10
30
575
0.200
0.75
V2F109C200Y1F _ _
9.0
6.4
12.7±15%
22
25
0.30
120
1800
0.150
1.00
V2F114A300Y2E _ _
14.0
10.0
18.5±12%
32
15
0.10
30
300
0.200
0.75
V2F114C300Y1F _ _
14.0
10.0
18.5±12%
32
15
0.30
120
900
0.150
1.00
V2F118A400Y2E _ _
18.0
13.0
25.5±10%
42
10
0.10
30
200
0.200
0.75
V2F118C400Y1F _ _
18.0
13.0
25.5±10%
42
10
0.30
120
500
0.150
1.00
V2F118X500Y3D _ _
18.0
13.0
25.5±10%
50
10
0.05
20
75
0.250
0.50
V3F418A400Y3G _ _
18.0
13.0
25.5±10%
42
10
0.10
20
150
0.200
0.30
18.0
13.0
25.5±10%
50
10
0.05
15
65
0.250
0.20
V3F418X500Y3G _ _
Termination Finish Code
Packaging Code
VW (DC)
VW (AC)
VB
VB Tol
VC
IL
ET
IP
Cap
DCR
IFT
DC Working Voltage (V)
AC Working Voltage (V)
Typical Breakdown Voltage (V @ 1mADC)
VB Tolerance is ± from Typical Value
Clamping Voltage (V @ 1A 8x20μS )
Maximum Leakage Current at the Working Voltage (μA)
Transient Energy Rating (J, 10x1000μS)
Peak Current Rating (A, 8x20μS)
Typical Capacitance (pF) @ 1MHz and 0.5 V
DC Resistance (Ohms)
Maximum Feedthru Current (A)
dB Attenuation vs Frequency
0
0
TransFeed 0.1J
TransFeed 0.3J
18LC
-10
-10
18A
18C
-20
14A
-20
9A
14C
-30
9C
(dB)
(dB)
-30
5A
-40
-40
-50
-50
-60
-60
5C
-70
0.01
0.1
1
Frequency (GHz)
10
-70
0.01
0.1
1
10
Frequency (GHz)
69
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
TransFeed
AVX Multilayer Ceramic Transient Voltage Suppressors
TVS Protection and EMI Attenuation in a Single Chip
DIMENSIONS
L
mm (inches)
W
2.01 ± 0.20
1.25 ± 0.20
0805
(0.079 ± 0.008) (0.049 ± 0.008)
T
BW
1.143 Max.
(0.045 Max.)
BL
EW
X
S
0.46 ± 0.10
0.18 + 0.25 -0.08
0.25 ± 0.13
1.02 ± 0.10
0.23 ± 0.05
(0.018 ± 0.004) (0.007 + 0.010 -0.003) (0.010 ± 0.005) (0.040 ± 0.004) (0.009 ± 0.002)
L
S
X
T
BW
CL
BL
W
EW
RECOMMENDED SOLDER PAD LAYOUT (Typical Dimensions)
0805
mm (inches)
T
P
S
W
L
C
3.45 (0.136)
0.51 (0.020)
0.76 (0.030)
1.27 (0.050)
1.02 (0.040)
0.46 (0.018)
4 Pad Layout
T
P
P
W
S
INPUT
OUTPUT
C
70
L
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
TransFeed Array - V3F4 Series
TVS Protection and EMI Attenuation in a 4-Element Array
E
W
P
D
A
T
B
C
BL
ES
D
L
F
A
BW
V3F4
DIMENSIONS
mm (inches)
L
W
T
BW
BL
ES
P
1.60 ± 0.20
(0.063 ± 0.008)
3.25 ± 0.15
(0.128 ± 0.006)
1.22 Max.
(0.048 Max.)
0.41 ± 0.10
(0.016 ± 0.004)
0.18 +0.25 -0.08
(0.007 +0.010 -0.003)
0.41 ± 0.10
(0.016 ± 0.004)
0.76 REF
(0.030 REF)
mm (inches)
A
B
C
D
E
F
0.60 (0.024)
1.60 (0.064)
2.20 (0.088)
0.35 (0.014)
0.76 (0.030)
2.60 (0.104)
71
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
TransFeed
AVX Multilayer Ceramic Transient Voltage Suppressors
TVS Protection and EMI Attenuation in a Single Chip
PERFORMANCE CHARACTERISTICS
INSERTION LOSS COMPARISON
(TransFeed vs TransGuard®)
0805 – dB vs Frequency
5.6V, 0.1J
0
-10
VC080514A300
-10
-20
-20
-30
(dB)
(dB)
14V, 0.1J
0
VC080505A150
-40
-30
-40
-50
V2F105A150Y2E
-60
-50
-70
0.01
-60
0.01
V2F114A300Y2E
0.1
10
1
0.1
Frequency (GHz)
18V, 0.1J
0
VC08LC18A500
-10
-20
(dB)
-20
(dB)
10
18V, 0.05J
0
VC080518A400
-10
-30
-40
-30
-40
-50
-50
0.1
-70
0.01
10
1
V2F118X500Y3D
-60
V2F118A400Y2E
-60
0.01
1
Frequency (GHz)
0.1
Frequency (GHz)
5.6V, 0.3J
0
1
10
Frequency (GHz)
14V, 0.3J
0
VC080514C300
-10
-10
-20
-20
-30
-30
(dB)
(dB)
VC080505C150
-40
-40
-50
-50
V2F105C150Y1F
-70
0.01
V2F114C300Y1F
-60
-60
0.1
-70
0.01
10
1
0.1
1
10
Frequency (GHz)
Frequency (GHz)
18V, 0.3J
0
VC080518C400
-10
(dB)
-20
-30
-40
-50
V2F118C400Y1F
-60
-70
0.01
0.1
1
10
Frequency (GHz)
72
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TransFeed
AVX Multilayer Ceramic Transient Voltage Suppressors
TVS Protection and EMI Attenuation in a Single Chip
PERFORMANCE CHARACTERISTICS
CURRENT vs TEMPERATURE
0805 – 0.1 Joule
Component Temperature (°C)
30
Note:
Dashed
Portions
Not Guaranteed
18V
14V
18LC
25
5V
9V
20
0.3
0.5
1
0.75
Current (Amps)
CURRENT vs TEMPERATURE
0805 – 0.3 Joule
Component Temperature (°C)
30
18V
25
14V
5V
20
0
0.25
0.5
Current (Amps)
0.75
1
73
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TransFeed
AVX Multilayer Ceramic Transient Voltage Suppressors
TVS Protection and EMI Attenuation in a Single Chip
PERFORMANCE CHARACTERISTICS
FEEDTHRU VARISTORS
AVX Multilayer Feedthru Varistors (MLVF) are an ideal choice
for system designers with transient strike and broadband
EMI/RFI concerns.
Feedthru Varistors utilize a ZnO varistor material and the
electrode pattern of a feedthru capacitor. This combination
allows the package advantage of the feedthru and material
advantages of the ZnO dielectric to be optimized.
ZnO MLV Feedthrus exhibit electrical and physical advantages
over standard ZnO MLVs. Among them are:
1. Faster Turn on Time
2. Broadband EMI attenuation
3. Small size (relative to discrete MLV and EMI filter schemes)
The electrical model for a ZnO MLV and a ZnO Feedthru MLV
are shown below. The key difference in the model for
the Feedthru is a transformation in parallel to series inductance. The added series inductance helps lower the injected
transient peak current (by 2πfL) resulting in an additional benefit of a lower clamping voltage. The lowered parallel inductance decreases the turn on time for the varistor to <250ps.
Discrete MLV Model
Discrete MLVF Model
To Device
Requiring
Protection
PCB
Trace
LS
Solder Pad
RV
RV
C
LS
Solder Pad
LP
To Device
Requiring
Protection
C
RP
RP
Ron
Ron
LP
Solder Pad
Solder Pad
Where: Rv
=
Rp
≥
C
=
Ron =
Lp =
74
Voltage Variable resistance
(per VI curve)
1012 Ω
defined by voltage rating and energy level
turn on resistance
parallel body inductance
Where: Rv
=
Rp
=
Voltage Variable resistance
(per VI curve)
Body IR
C
Ron
Lp
Ls
=
=
=
=
defined by voltage rating and energy level
turn on resistance
minimized parallel body inductance
series body inductance
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TransFeed
AVX Multilayer Ceramic Transient Voltage Suppressors
TVS Protection and EMI Attenuation in a Single Chip
PERFORMANCE CHARACTERISTICS
APPLICATIONS
MARKET SEGMENTS
• EMI Suppression
• Broadband I/O Filtering
• Vcc Line Conditioning
FEATURES
• Small Size
• Low ESR
• Ultra-fast Response Time
• Broad S21 Characteristics
• Computers
• Automotive
• Power Supplies
• Multimedia Add-On Cards
• Bar Code Scanners
• Remote Terminals
• Medical Instrumentation
• Test Equipment
• Transceivers
• Cellular Phones / Pagers
TYPICAL CIRCUITS REQUIRING
TRANSIENT VOLTAGE
PROTECTION AND EMI FILTERING
The following applications and schematic diagrams
show where TransFeed TVS/ EMI filtering devices might
be used:
• System Board Level Interfaces: (Fig. 1)
Digital to RF
Analog to Digital
Digital to Analog
• Voltage Regulation (Fig. 2)
• Power Conversion Circuits (Fig. 3)
• GaAs FET Protection (Fig. 4)
Fig. 1 – System Interface
Fig. 2 – Voltage Regulators
REGULATOR
Sensor/Keyboard/
Touchscreen Input
DIGITAL�
BOARD
+
RF BOARD
By X Bus
Fig. 3 – Power Conversion Circuits/Power Switching Circuits
+3.3V
MAIN�
POWER
Sensor Input
ANALOG�
BOARD
DIGITAL�
BOARD
POWER�
+3.3V
MANAGEMENT�
�
CHIP
Display
INTERFACE�
CARD
+5V
+1.8V
+12V
Keyboard
DIGITAL�
BOARD
ASIC
ANALOG�
BOARD
Fig. 4 – GaAs FET Protection
SPECIFICATION COMPARISON
MLVF
0805
PARAMETER
INPUT
OUTPUT
MLV
0805
5ph
Ls
typical
N/A
<600nh
Lp
typical
<1.5nh
<0.025Ω
Ron
typical
<0.1Ω
100pf to 2.5nf
C
typical
100pf to 5.5nf
see VI curves
Rv
typical
see VI curves
>0.25 x 1012Ω
Rp
typical
>1 x 1012Ω
<250ps
Typical turn on time
Typical frequency response
<500ps
A comparison table showing typical element parameters and resulting
performance features for MLV and MLVF is shown above.
75
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TransGuard
®
TYPICAL CIRCUITS REQUIRING PROTECTION
The following applications and schematic diagrams show where
TransGuards® might be used to suppress various transient voltages:
• ASIC Reset & Vcc Protection
• Micro Controllers, Relays, DC Motors
• I/O Port Protection
• Keyboard Protection
• Modem Protection
• Sensor Protection
• Preamplifier Protection
• Audio Circuit Protection
• LCD Protection
• Optics Protection
76
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TransGuard®
AVX Multilayer Transient Voltage Protection
Typical Circuits Requiring Protection
ASIC RESET & Vcc PROTECTION
IOCK
S
IOCS16
1
IRQSETO
IRQSET1
1 μf
0.1 μf
0.01 μf
5.6V 0.1-0.4J
5.6V 0.1J
DO-15
PDREF
BCLK2
CLK14
IOR
IOW
LA20
CASH0
CASLO0
CASH1
CASL1
CASH2
CASL2
CASH3
CASL3
RAS0
RAS1
RAS2
RAS3
RAS4
Vcc
RADO-7
AO-23
BHE
NPBUSY
CPUCLK
GND
DPH
DRQIN
NPERR
HLDA
ICHRDY
RESET
MASTER
MNIO
RDYIN
PCUIN
MICRO CONTROLLERS RELAYS, DC MOTORS
TRANSGUARD® CHARACTERISTICS
WORKING VOLTAGE ≥ RELAY OR MOTOR VOLTAGE
ENERGY RATING TYPICALLY > 0.3J
CAPACITANCE IS OF NO CONCERN
CMOS RELAY DRIVER
LM319 RELAY DRIVER
VCC
+5V
+28V
30V 0.4J
IN 1
IN 2
RELAY
IN 1
1/2 MM74C908 MM74C918
1/2 LM319
IN 2
18V 0.4J
RELAY
= TransGuard®
77
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TransGuard®
AVX Multilayer Transient Voltage Protection
Typical Circuits Requiring Protection
I/O PORT PROTECTION
TRANSGUARD® CHARACTERISTICS
WORKING VOLTAGE TYPICALLY 14V - 18V
ENERGY RATING TYPICALLY 0.05J - 0.1J
CAPACITANCE SHOULD BE MINIMIZED
SUB NOTEBOOK & PDA’S
IOCS16
HDCS1
IDED7
HDCSO
IDEENLO
IDEENHI
AVCC
SETCUR
AVSS
RVI
FILTER
FGND250
FGND500
DO-D9
TC
DACK
IRQ3
IRQ4
PINTR
FINTR
IOR
AEN
FDRQ
RESET
PWRGD
INDEX
MTRO
DRV1
DRVO
MTR1
DIR
STEP
WDATA
WG ATE
TRKO
WRPRT
D
T
R
22
C
T
S
2
D T
S D
R X
2
NOTEBOOK & WORK STATION
RXD2
DCD2
R12
DTR1
CTS1
RTS1
DSR1
TXD1
RXD1
DCD1
RI1
Vcc
STROBE
AUTOF
ERROR
INIT
SLCTIN
D
D
D
D
MAX 211
DRVR/RCVR
R
PARALLEL
OUTPUT
0 TO 7
R
R
R
D
A
T
A
H
D
S
E
L
D AO
S
K
C H
G A9
ACK
BUSY
PE
SLCT
X2
X1/CLK
PREN
DRVTYP
R
R
KEYBOARD PROTECTION
TRANSGUARD® CHARACTERISTICS
WORKING VOLTAGE >5.6V
ENERGY RATING TYPICALLY <0.4J
CAPACITANCE PREFERRED TO BE MINIMUM
KEYBOARD
CONTROLLER
74AHCT05
FERRITE
BEAD
DATA
14V - 18V 0.1J
74AHCT05
FERRITE
BEAD
CLOCK
14V - 18V 0.1J
= TransGuard®
78
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TransGuard®
AVX Multilayer Transient Voltage Protection
Typical Circuits Requiring Protection
MODEM PROTECTION
TRANSGUARD® CHARACTERISTICS
WORKING VOLTAGE <26V
ENERGY RATING ≥ 0.1J
330 pf
2/5/9
+5V
Am7910
14
P1/8
10K ohm
1
0.68 μf
1489
P1/4
4
3
DTR
6
RTS
8
TD
RC
0.68 μf
TC
15 pf
24
P1/2
S1-5
10
MC0
7
23
MC1
2000 pf
22 pf
MC2
P1/1
100 ohm
MC3
MC4
1488
1 megohm
3
P1/3
2
RD
33 nf
RES
P1/6
4
6
CTS
RING
5
9
CD
8
P1/5
10
14 1 7
2
4
BRTS
9/22
1.2K ohm
1.2K ohm
+5V
+5V
+5V -5V
1 megohm
+12V
-12V
SENSOR PROTECTION
TRANSGUARD® CHARACTERISTICS
WORKING VOLTAGE TYPICALLY >14V
ENERGY RATING > 0.4J
CAPACITANCE IS NO CONCERN
1 μf
120V MOV
180 ohm
1N4004
1N4004
1N4004
14V 0.4J
0.01 μf32
= TransGuard®
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TransGuard®
AVX Multilayer Transient Voltage Protection
Typical Circuits Requiring Protection
ANTENNA AND PREAMPLIFIER PROTECTION
TRANSGUARD® CHARACTERISTICS
WORKING VOLTAGE TYPICALLY 18V - 26V
ENERGY RATING 0.05J - 0.9J
CAPACITANCE OF CONCERN ON MANY DESIGNS
PREAMPLIFIER PROTECTION
+5V
10 μh
15 pf
RF
INPUT
1.8K ohm
0.01 μf
MPF102
0.01 μf
26V 0.1J
NEXT
STAGE
180 pf
1 megohm
100 ohm
AUDIO CIRCUIT PROTECTION
TRANSGUARD® CHARACTERISTICS
WORKING VOLTAGE TYPICALLY 14V - 18V
ENERGY RATING 0.1J
PAGER AUDIO PROTECTION
NOTEBOOK, WORK STATION AUDIO PROTECTION
Vcc
IN
68 ohm
INPUT FROM
up OR DRIVER IC
68 ohm
2N2907
1K ohm
14V 0.1J
IN
2N2222
14V 0.1J
= TransGuard®
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TransGuard®
AVX Multilayer Transient Voltage Protection
Typical Circuits Requiring Protection
LCD PROTECTION
TRANSGUARD® CHARACTERISTICS
WORKING VOLTAGE < 5.6V
ENERGY RATING < 0.1J
LSI
CONTROLLER
8
64
COM.
DRIVER
x1
D0-D7
WR
RD
LCD
240 x 64
240
3
CE
3
4
C/D
SEG
DRIVER
x3
FS
RESET
12
4.91 MHz
8
TRANSGUARD®
OPTIONAL
VC06LC18X500
StaticGuard
S - RAM
OPTICS PROTECTION
TRANSGUARD® CHARACTERISTICS
WORKING VOLTAGE ≤ 18V
ENERGY RATING 0.1J
CAPACITANCE SHOULD BE MINIMIZED
OPTO ISOLATER PROTECTION
LASER DIODE PROTECTION
5V
330 ohm
330 ohm
1N4148
1 ohm
OUTPUT
SIGNAL
MICRO
CONTROLLER
0.1 μf
100 ohm
OPTO
TRIAC
18V 0.1J
5.6V 0.1J
TRIAC
2N4400
100 pf
2N6659
LASER
DIODE
1N4148
3.9K ohm
330 ohm
2N2222
OUTPUT
SIGNAL
VN64GA
2N4400
1K ohm
2N6659
3.9K ohm
= TransGuard®
81
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TransGuard
®
APPLICATION NOTES
• AVX Multilayer Varistors –
Assembly Guidelines
• IEC 61000-4 Requirements
• Turn On Time Characteristics
of AVX Multilayer Varistors
• The Impact of ESD on
Insulated Portable Equipment
• AVX TransGuard® Motor and
Relay Application Study
• AVX Multilayer Varistors in
Automobile MUX Bus Applications
82
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TransGuard®
Preheat
Reflow
Cool Down
AVX Multilayer Varistors – Application Notes
The move toward SMT assembly of Transient Voltage
Suppressors (TVS) will continue accelerating due to improved
long-term reliability, more efficient transient voltage attenuation and size/functionality/cost issues.
TransGuards® are uniquely suited for wide-scale usage in
SMT applications. TransGuards® exhibit many advantages
when used in SMT assemblies. Among them are:
• Available in standard EIA chip sizes 0402/0603/0805/
1206/1210.
• Placed with standard equipment (8mm tape and reel).
• Processed with fewer guidelines than either ceramic chip
or resistor chip devices.
• Exhibit the highest energy/volume ratio of any EIA size
TVS.
This general guideline is aimed at familiarizing users with the
characteristics of soldering multilayer SMT ZnO
TransGuards®. TransGuards® can be processed on wave or
infrared reflow assembly lines. For optimum performance, EIA
standard solder pads (land areas) shown in Figure 1 are recommended regardless of the specific attachment method.
Dimensions: mm (inches)
STORAGE
Good solderability of plated components is maintained for at
least twelve months, provided the components are stored in
their “as received” packaging at less than 30°C and 85% RH.
SOLDERABILITY
Plated terminations will be well soldered after immersion in a
60/40 tin/lead solder bath at 235°C ±5°C for 5 ±1 seconds.
LEACHING
Plated terminations will resist leaching for at least 30 seconds
when immersed in 60/40 tin/lead solder at 260°C ±5°C.
RECOMMENDED SOLDERING PROFILES
Recommended Reflow Profiles
275
Component Temperature / ºC
TRANSGUARD® SURFACE MOUNT
DEVICES
Pb Free Recommended
250
Pb Free Max with care
Sn Pb Recommended
225
200
175
150
125
100
75
50
25
0
0.89
(0.035)
2.54
(0.100)
0.76
(0.030)
3.05
(0.120)
0402
0.76
(0.030)
4.06
(0.160)
80
100 120 140 160 180 200 220 240 260 280 300 320 340 360 380 400 420
1.02
(0.040)
275
1.27
(0.050)
0805
1.02
(0.040)
2.03
4.06
(0.160) (0.080)
60
Time / secs
1.02
(0.040)
0603
1.02
(0.040)
40
Recommended Soldering Profiles
0.89
(0.035)
0.51
(0.020)
20
1.02
(0.040)
2.03
(0.080)
Component Temperature / ºC
0.61
(0.024)
0.51
1.70 (0.067)
(0.020)
0.61
(0.024)
225
175
125
Wave
75
Preheat
Cool Down
25
1.02
(0.040)
1.02
(0.040)
0
50
100
150
200
250
300
350
400
Time / seconds
1.65
(0.065)
2.54
(0.100)
1206
1210
GENERAL
Figure 1: TransGuard® Solder Pad Dimensions
Surface mount multilayer varistors (MLVs) are designed for
soldering to printed circuit boards or other substrates. The
construction of the components is such that they will withstand the time/temperature profiles used in both wave and
reflow soldering methods.
83
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TransGuard®
AVX Multilayer Varistors – Application Notes
HANDLING
MLVs should be handled with care to avoid damage or
contamination from perspiration and skin oils. The use of
tweezers or vacuum pickups is strongly recommended for
individual components. Bulk handling should ensure that
abrasion and mechanical shock are minimized. Taped and
reeled components provide the ideal medium for direct
presentation to the placement machine.
Cracks caused by mechanical flexure are very easily identified and generally take one of the following two general
forms:
PREHEAT
It is important to avoid the possibility of thermal shock during
soldering and carefully controlled preheat is therefore
required. The rate of preheat should not exceed 4°C/second
and a target figure 2°C/second is recommended.
Type A:
Angled crack between bottom of device to top of solder joint.
SOLDERING
Mildly activated rosin fluxes are preferred. The minimum
amount of solder to give a good joint should be used.
Excessive solder can lead to damage from the stresses
caused by the difference in coefficients of expansion between
solder, chip and substrate. AVX terminations are suitable for
all wave and reflow soldering systems. If hand soldering cannot be avoided, the preferred technique is the utilization of hot
air soldering tools.
COOLING
Natural cooling in air is preferred, as this minimizes stresses
within the soldered joint. When forced air cooling is used,
cooling rate should not exceed 4°C/second.
CLEANING
Flux residues may be hygroscopic or acidic and must be
removed. AVX MLVs are acceptable for use with all of the
solvents described in the specifications MIL-STD-202 and
EIA-RS-198. Alcohol-based solvents are acceptable and
properly controlled water cleaning systems are also acceptable. Many other solvents have been proven successful,
and most solvents that are acceptable to other components
on circuit assemblies are equally acceptable for use with
MLVs.
POST SOLDER HANDLING
Once the components are soldered to the board, any bending or flexure of the PCB applies stresses to the soldered
joints of the components. For leaded devices, the stresses
are absorbed by the compliancy of the metal leads and
generally don’t result in problems unless the stress is large
enough to fracture the soldered connection.
Surface mount devices are more susceptible to such stress
because they don’t have compliant leads and are brittle in
nature. The most frequent failure mode is high leakage
current (or low breakdown voltage). Also, a significant loss
of capacitance due to severing of contact between sets of
internal electrodes may be observed.
84
Type B:
Fracture from top of device to bottom of device.
Mechanical cracks are often hidden underneath the termination and are difficult to see externally. However, if one end
termination falls off during the removal process from PCB,
this is one indication that the cause of failure was excessive
mechanical stress due to board flexure.
COMMON CRACKS OF MECHANICAL
CRACKING
The most common source for mechanical stress is board
depanelization equipment, such as manual breakapart, vcutters and shear presses. Improperly aligned or dull cutters
may cause torquing of the PCB resulting in flex stresses
being transmitted to components near the board edge.
Another common source of flexural stress is contact during
parametric testing when test points are probed. If the PCB
is allowed to flex during the test cycle, nearby components
may be broken.
A third common source is board-to-board connections at
the vertical connectors where cables or other PCBs are
connected to the PCB. If the board is not supported during
the plug/unplug cycle, it may flex and cause damage to
nearby components.
Special care should also be taken when handling large (>6"
on a side) PCBs since they more easily flex or warp than
smaller boards.
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TransGuard®
AVX Multilayer Varistors – Application Notes
REWORKING ASSEMBLIES
Thermal shock is common in MLVs that are manually
attached or reworked with a soldering iron. AVX strongly
recommends that any reworking of MLVs be done with hot
air reflow rather than soldering irons.
Direct contact by the soldering iron tip often causes thermal
cracks that may fail at a later date. If rework by soldering
iron is absolutely necessary, it is recommended that the
wattage of the iron be less than 30 watts and the tip
temperature be <300°C. Rework should be performed by
applying the solder iron tip to the pad and not directly
contacting any part of the component.
Clearly, a plated termination system (as seen in Figure 3) is
desired. This system, which is typical of other electronic
components such as capacitors and resistors, produces a
much better assembled product.
Figure 2
Leaching of Unplated Terminations
VARISTOR SOLDERABILITY
Historically, the solderability of Multilayer Varistors (MLVs)
has been a problem for the electronics manufacturer. He
was faced with a device that either did not wet as well as
other electronic components, or had its termination material
leached away during the assembly process. However, by
utilizing proprietary procedures, AVX Corporation provides
the market with a MLV that has solderability comparable to
that of other electronic components, and resists leaching
during assembly.
Non-Wetting of Unplating Terminations
BACKGROUND
The basic construction of an unplated MLV is presented in
Figure 1. The external termination is a metal that connects
Figure 1
Unplated MLV
Ceramic
Electrodes
Thick
Film
Material
Figure 3
Plated MLV
Electrodes
Solder Layer
Ceramic
the internal electrodes to the circuitry of the assembly using
the MLV. The external electrode must accomplish two goals.
First, it must be sufficiently solderable to allow the solder
used in assembly to wet the end of the chip and make a
reliable connection to the traces on the circuit board.
Second, it must be robust enough to withstand the assembly process. This is particularly important if wave soldering is
used. Unfortunately these two goals are competing. In order
to achieve good solderability, an alloy high in silver content
is chosen. However, this alloy is prone to leaching during
assembly, so an additional metal is added to improve the
leach resistance. While this improves the leach resistance,
this addition makes the termination less solderable. The
results are either terminations that leach away, or do not
solder well (see the photographs in Figure 2).
Nickel Layer
Thick
Film
Material
In the plated termination, the base termination layer is still
used (it provides contact from the electrodes to the circuitry). On top of the base termination is a layer of nickel. This is
the surface to which the solder bonds during assembly. It
must be thick enough to stay intact during IR reflow or wave
85
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TransGuard®
AVX Multilayer Varistors – Application Notes
soldering so that the thick film material does not leach away.
It must also be thick enough to prevent the inter-metallic
layer between the thick film termination and the nickel layer
from affecting the solderability.
In order to protect the nickel (i.e., maintain its solderability),
a layer of solder is plated on top of the nickel. The solder
preserves the solderability of the nickel layer. It must be
thick and dense to keep oxygen and water from reaching
the nickel layer.
Figure 5
AVX Plated Parts
THE CHALLENGE
Zinc oxide varistors are semi-conductive in nature – that is
what allows them to “turn on” and divert a damaging
transient away from sensitive electronic circuitry and safely
to ground. This semi-conduction poses a major problem for
the manufacturer that wants to plate the terminations – the
ceramic plates also! This condition, overplating, must be
controlled, as it is cosmetically undesirable and could result
in an unwanted path of conduction across the chip.
Early efforts in plating MLVs revolved around limiting the
time that the chip was in the plating bath. This helped
prevent overplating, but also produced chips with marginal
solderability. The photographs in Figure 4 depict the
problems that occur when the plated layers are not thick
enough.
THE SOLUTION
AVX has developed a proprietary process that passivates
the ceramic surface of the MLV. This allows us to plate the
parts for a longer time without getting the overplate. This
results in significantly thicker layers of nickel and alloy plated
onto the base termination. These thicker layers translate into
bond strengths that are typically twice those of our competitors and solder fillets and parts that pass all measured of
solderability (as seen in Figure 5).
AVX: The solution for MLV assembly problems.
Figure 4
Problems when the Plated Layers are Too Thin
86
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TransGuard®
AVX Multilayer Ceramic Transient Voltage Suppressors
Application Notes: IEC 61000-4 Requirements
WHAT IS IEC 61000-4?
WAVEFORM PARAMETERS
The International Electrotechnical Commission (IEC) has
written a series of specifications, IEC 61000-4, which mandate the performance of all electronic devices in a variety of
transient and incident RF conditions. This specification
requirement resulted as part of Europe’s move toward a single market structure and a desire to formalize and harmonize
current member countries’ requirements. As of January 1,
1996, all electronic and electrical items sold to Europe must
meet IEC 61000-4 series specifications.
WHY IS IEC 61000-4 REQUIRED BY
EUROPE?
The various regulatory agencies within Europe feel that the
IEC 61000-4 series of specifications is necessary to insure
acceptable performance of electronic equipment in a world
filled with increasingly more Electromagnetic Interference EMI. Furthermore, as electronic systems become more
portable, and the transient susceptibility of semiconductors
increases, government regulations are essential to maintain
a minimum level of performance in all equipment. Europe
is so serious about the problem that they require that equipment be certified via testing to meet IEC 61000-4 series
specifications after 1/1/96 to avoid fines and prosecution.
HOW DO COMPANIES SELLING
ELECTRONIC SYSTEMS MEET
IEC 61000-4 PARTS 2-5 SPECIFICATIONS?
Companies and design engineers must now use protective
circuits or devices to meet these requirements. First, a
description of IEC 61000-4/2-6 is in order:
IEC 61000-4-2 ESD TESTING
REQUIREMENTS
All equipment destined for Europe must be able to withstand 10 strikes of ESD waveforms with Tr < 1ns in contact
discharge mode (preferred) at pre-selected points accessible during normal usage or maintenance. Testing shall be
performed at one or more of four (4) severity levels, depending upon equipment category.
Level
1
2
3
4
Contact Discharge1
Mode Test Voltage
kV
2
4
6
8
61000-4-2 Test Conditions
Air Discharge Mode
Test Voltage kV
2
4
8
15
Level
Test
Voltage
Level
kV
First Peak
of
Discharge
Current
Amps ±
10%
TR
nS
1
2
7.5
2
4
15
3
6
22.5
4
8
30
0.7
-1
0.7
-1
0.7
-1
0.7
-1
30 nS
Current
Amps ±
30%
60 nS
Current
Amps ±
30%
4
2
8
4
12
6
16
8
Upon completion of the test, the system must not experience upset (data or processing errors) or permanent damage. The waveforms are to be injected at or along the DUT’s
body which is accessible in normal set-up and operation.
IEC 61000-4-3 ELECTROMAGNETIC
COMPATIBILITY IMPACT TESTING (EMC)
This test is concerned with the susceptibility of equipment
when subjected to radio frequencies of 27 MHz to 500 MHz.
The system must be able to withstand three (3) incident
radiation levels:
Level 1 1V/m field strength
Level 2 3V/m field strength
Level 3 10V/m field strength
Level X User defined > 10V/m field strength
The system must not experience upset (data or processing
errors) or permanent errors.
IEC 61000-4-4 ELECTRICAL FAST
TRANSIENT (EFT) TESTING
The EFT test is modeled to simulate interference from
inductive loads, relay contacts and switching sources. It
consists of coupling EFT signals on I/O parts, keyboard
cables, communication lines and power source lines. The
system, depending upon appropriate severity level, must be
able to withstand repetition rates of 2.5 kHz to 5 kHz for ≥ 1
minute as follows:
Open Circuit Output Voltage/10%
On Power Supply
Level 1
0.5kV
Level 2
1kV
Level 3
2kV
Level 4
4kV
On I/O, Signal, Data, Control lines
0.25kV
0.5kV
1kV
2kV
Preferred mode of testing due to repeatability.
1
87
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TransGuard®
AVX Multilayer Ceramic Transient Voltage Suppressors
Application Notes: IEC 61000-4 Requirements
IEC 61000-4-5 UNIDIRECTIONAL POWER
LINE SURGE TEST
The details of this specification for high energy disturbances
are being addressed in several drafts under discussion within the EC at this time.
SUMMARY
AVX TransGuards ® are exceptionally suited to meet the
defined portions of the IEC 61000-4 document.
Experimentation is critical to proper choice and selection of
devices to suppress 61000-4-3/4. Samples are available from
your local sales representative.
IEC 61000-4-6 CONDUCTED RF TEST
FROM 9kHz TO 80MHz
IEC 61000-4-2 ESD DEVICE TEST
25kV ESD STRIKES On VC080514C300
35
Voltage (v)
30
25
20
15
10
Vb
Pre Test
Vb
Post Test
Vc
Pre Test
Vc
Post Test
TransGuard® Parameters
25kV Direct Discharge, 25 hits
IEC 61000-4-2 ESD DEVICE TEST
25kV ESD STRIKES On VC080514C300
25
Leakage Current (A)
The details of this specification for conducted broad band
RF signals are being addressed in a first edition draft within
the EC at this time.
Designers have the option of using AVX TransGuards® to
meet IEC 61000-4-2, 3 and 4.
In the case of IEC 61000-4-2 TransGuards® can be used to
suppress the incoming Transient just like a Zener diode
would. TransGuards®, however, exhibit bipolar characteristics, a faster turn-on-time (<1nS), a better repetitive strike
capability and superior thermal stability to the Zener suppression device. Furthermore, TransGuards® are typically
smaller and lighter when placed on SMT circuit boards. See
Figure 1 for data illustrating IEC 61000-4-2 repetitive strike
capability.
The TransGuards® effective capacitance allows the device to
be used to meet IEC 61000-4-3 and 61000-4-4. The
device’s parallel capacitance can be used as effectively as a
capacitor to block low level incident and conducted RF
energy. If in the case of some levels of IEC 61000-4-3 and
IEC 61000-4-4 when the intensity of pulse is greater than
the device’s breakdown capability it will then turn on and
suppress via MOV means rather than capacitance (as in the
small signal case). Effectiveness hinges upon the proper
placement of the device within the PCB (which is usually
easily accomplished since TransGuards® are so small).
20
15
10
5
0
II
Pre Test
II
Post Test
25kV Direct Discharge, 25 hits
Figure 1
88
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TransGuard®
AVX Multilayer Ceramic Transient Voltage Suppressors
Application Notes: Turn on Time Characteristics of
AVX Multilayer Varistors
INTRODUCTION
TEST PROCEDURE
Due to the growing importance of ESD immunity testing, as
required by the EMC Directive, proper selection of voltage
suppressor devices is critical. The proper selection is a function of the performance of the device under transient conditions. An ideal transient voltage suppressor would reach its
“clamping voltage” in zero time. Under the conditions
imposed by the 1991 version of IEC 61000-4-2, the actual
turn-on-time must be less than one nanosecond to properly
respond to the fast leading edge of the waveform defined in
the standard.
It has been found during testing of transient suppressors
that the response time is very closely dictated by the packaging of the device. Inductance that is present in the connection between the silicon die and the leads of the device
creates an impedance in series with the suppressor device;
this impedance increases the overall device response time,
reducing the effectiveness of the suppressor device.
The purpose of this paper is to present the Turn on Time
characteristics of Multilayer Varistors (MLVs) and to compare
the MLV Turn on Time to that of various silicon transient
voltage suppressors (SiTVs).
The Turn on Time of a transient voltage suppressor (TVS) is
of growing importance since IEC 61000-4-2 now specifies
ESD waveform with a rise time < 1 ns. Therefore, TVS’s
must have a turn on time < 1 ns to effectively suppress
ESD. In many, if not all, ESD suppression applications, TVS
turn on time can be of more importance than absolute
clamping voltage (Vc) of the TVS (assuming that the TVS
clamping voltage is less than the damage voltage of the
circuit or IC).
To measure the turn on time of today’s TVS’s, a broad cross
section of MLVs and SiTVs were chosen. Only surface
mount devices were chosen in order to best represent
today’s TVS current usage/trends and to keep the test
matrix to a reasonable level of simplicity. The following
devices were tested:
The TVS device under test (DUT) was placed on a PCB test
fixture using SN60/40 solder. The test fixture (see Figure 1)
was designed to provide an input region for an 8kV contact
ESD discharge waveform (per IEC 61000-4-2 level 4
requirements). In addition, the fixture was designed to provide low impedance connections to the DUTs.
SMT MLV
0603
0805
1206
1210
SiTVS
MA141WA
BAV 99
SOT 23 type
SMB - 500W gull-wing SM device
SMC - 1500W gull-wing SM device
Figure 1. DUT Test Fixture
The ESD pulse was injected to the PCB from a Keytek minizap ESD simulator. Additionally, the fixture was to channel
the ESD event to a storage oscilloscope to monitor the
suppressor’s response. Six resistors were used on the PCB
to provide waveshaping and an attenuated voltage to the
storage scope (see Figure 2):
MINI-ZAP with CONTACT DISCHARGE TIP
"LAUNCH AREA"
R1
1.6k⍀
R2
1.6k⍀
R3
1.6k⍀
DEVICE�
UNDER�
TEST
R5
1k⍀
R4
1k⍀
R6
200⍀
TEK TDS�
540 SCOPE
Figure 2. Schematic of Test Set Up
89
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TransGuard®
AVX Multilayer Ceramic Transient Voltage Suppressors
Application Notes: Turn on Time Characteristics of
AVX Multilayer Varistors
The functions of the resistors are as follows: The resistor
values were adjusted in “open circuit” conditions to obtain
best open circuit response.
R1, R2 (1.6K) - provide wave shaping during the ESD
discharge event
R3 (1.6K), R4 (1K), R5 (1K) - Form a 60 dB Attenuator
(1000:1 ratio) for input of Tektronix TDS 540 1 giga
sample/second storage oscilloscope
R6 (200 Ω) - provides matching to the 50 ohm coax feeding
the TDS 540 oscilloscope.
The open circuit response of the ESD test fixture with a 9kV
ESD pulse is shown in Figure 3.
Task Stopped:
74 Acquisitions
TVS TURN ON TIME
Test results for SiTVs varied widely depending upon the
physical size and silicon die mounting configuration of the
device. The results agree with several SiTVs manufacturers
papers indicating that the absolute response from the silicon
die could be < 1 ns. However, when the die is placed in a
package, the turn on time delay increases dramatically.
The reason for this is the series inductance of the SiTVs
packaging decreases the effective response time of the
device. Reports of 1-5 ns are frequently referred to in SiTVs
manufacturers publications. Further, the turn on times for
SiTVs vary dramatically from manufacturer to manufacturer
and also vary within a particular manufacturers lot. The data
provided in the following table generally agreed with these
findings:
Δ: 800ps
SiTVS
TURN ON SPEED
0.8ns
0.9ns to 1.2ns
0.8ns
1.5ns to 2.2ns
1.5ns to 3ns
O: -1.2ns
CASE SIZE
MA141WA
BAV 99
SOT 23 Type
SMB
SMC
CH1 Rise
800ps
SUMMARY
1.0
CH1
2.00 V
M 20.0ns CH1
2.20 V
Figure 3. Open Circuit Response of Test Fixture
to an Injected ESD Waveform
The graph shows the voltage attenuated by a factor
of 1000, with a 800ps risetime for the ESD waveform
(this agrees with typical data given by Keytek for equipment
performance). It should be noted that only the positive
polarity was tested. Prior testing showed turn on time was
not dependent upon waveform polarity (assuming that DUTs
are bidirectional).
This test confirms calculations that show that AVX
TransGuards® have a true sub-nanosecond turn on time.
Although the silicon die of a SiTVs has a sub-nanosecond
response, the packaged SiTVs typically has a response time
much slower than a TransGuard®. If the two devices were
directly compared on a single graph (see Figure 4), it could
be shown that the TransGuard® diverts significantly more
power than even the fastest SiTVs devices. Additionally,
TransGuards® have a multiple strike capability, high peak
inrush current, high thermal stability and an EMI/RFI
suppression capability which diodes do not have.
TEST RESULTS
TRANSGUARD® vs SILICON TVS TURN ON COMPARISON
ESD WAVEFORM SHAPE
100
The turn on time test results for AVX TransGuards® showed
that all case sizes were capable of a sub-nanosecond turn on
response. This corresponds favorably with the calculated turn
on time of less than 1 ns. Specific performance data follows:
CASE SIZE
0603
0805
1206
1210
90
AVX TransGuard®
TURN ON SPEED
< 0.7 ns
< 0.9 ns
< 0.9 ns
< 0.8 ns
TRANSGUARD®
TURN-ON TIME
(0.2 - 0.7 N SEC)
80
Ip (%)
MLV TURN ON TIME TRANSGUARDS
®
60
40
20
DIODE TURN-ON RANGE
(1.2 - 5.0 N SEC)
0
0.1
1
10
100
Time (ns)
IEC 801-2 ESD WAVE
Typical Data
Figure 4.
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TransGuard®
AVX Multilayer Ceramic Transient Voltage Suppressors
Application Notes: The Impact of ESD on Insulated Portable Equipment
The purpose of this discussion is to recap the impact ESD
has on portable, battery powered equipment. It will be
shown that ESD can cause failures in “floating ground systems” in a variety of ways. Specifically, ESD induced failures
can be caused by one or more of its complex components:
Predischarge - Corona Generated RF
Predischarge - E Field
Discharge
- Collapsing E Field
Discharge
- Collapsing H Field
Discharge
- Current Injection...Voltage...Additional
Fields
With this in mind it will be shown that the only way to insure
equipment survivability to ESD is to use a Transient Voltage
Suppressor (in addition to proper circuit layout, decoupling,
and shielding).
In order to get a better understanding of what happens in an
ESD event the charge developed by a human body should be
defined. The ESD schematic equivalent of the human body
model is shown in Figure 1. Typically, the charge developed
on a person can be represented by a 150pF capacitor in
series with a resistance of 330 ohms. The energy of an ESD
waveform generated from this model is Q = 1/2 CV2 where
Q = total energy in Joules, C = capacitance of the human
body model in farads and V = charging voltage in volts.
Voltages can be as high as 25 kV, however typical voltages
seen are in the 8 to 15 kV regions.
In the predischarge scenario (Figure 2) a human charged to
–20 kV may approach a battery powered “system” on a
table. As the person reaches toward the system electrostatics dictate that the system will have an equal and opposite
charge on the system’s surface nearest to the person. SInce
the system we are approaching is isolated from ground, the
charge is only redistributed among the device. (If the system
were grounded a current would be generated by the loss of
electrons to ground. The system would then become positive relative to ground). The rate of approach of the human
body model affects the charging current to a small extent.
However, most importantly, it is the electrostatic field and
the unequal voltages which developed across the equipment that cause the destruction of components within the
system. In general, unprotected IC’s (particularly CMOS) are
susceptible to damage due to induced E field voltages.
This problem is further complicated by the device type
and complexity and the fact that the breakdown voltage
of a generic IC will vary greatly from manufacturer to
manufacturer (Figure 3). This brief discussion should be
adequately convincing that electrostatically induced E field
can impact system reliability. IC protection can be achieved
by placing a transient suppressor on the most susceptible
pins of the sensitive IC’s (e.g., Vcc and I/O pins, etc.).
IC TYPE vs SUSCEPTIBILITY
10000
1000
Where:
CH = Human body
model capacitance
typically 150pF
CH
RH = Human body
model resistance
typically 330 Ω
Figure 1. Human Body Model
PREDISCHARGE E FIELD FAILURES
Now that we have a definition of the basic ESD human body
model we can discuss the predischarge E field failure mode.
POSITIVE INDUCED VOLTAGE
– 20 kV
+
++
+
+
+
+
+
+
++
+
+
+
+++
–�–�
–�
–�
–�
–�
–�
–�
–�
–�
–�
–�
–�
–�
–�
–�
RESULTING NEGATIVE CHARGE
NEGATIVE 20 kV CHARGE
VOLTS
RH
100
10
CMOS
S.TTL
M.FET
B.P.
ECL
JFET
EPROM GaAsFET
TECHNOLOGY
TYPICAL MIN.
TYPICAL MAX.
Figure 3. IC Type E Field Susceptibility
CONTACT DISCHARGE FAILURES
As the charged person gets closer to the system, the situation is more complex. First a much more detailed human
body model is needed to represent the complex transmission line which will transport energy to the system
(see Figure 4). In this discussion we will only consider
the case of a single contact discharge. In the real world,
however, multiple discharges will likely occur (possibly
caused by a person’s hand reacting to an ESD spark and
then touching the system again, etc.).
In contact discharge, when a charged person approaches
the system, E fields are induced. As the person gets closer
to the system, the field intensity becomes greater, eventually
reaching a point large enough to draw an arc between the
Figure 2. Pre-Discharge Scenario
91
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TransGuard®
AVX Multilayer Ceramic Transient Voltage Suppressors
Application Notes: The Impact of ESD on Insulated Portable Equipment
person and the system. In contrast to the noncontrast E field
example, the speed of approach is of great importance in the
contact discharge model. A fast approach causes a more
intensive discharge and faster current rise times and peaks.
The model shown on Figure 4 can be broken up into 4 sections for the sake of simplification. The first section is the
human body model input voltage. This section is identical to
the simplified human body model shown in Figure 1.
Section 2 takes into account how the human body model
gets the energy to the system. This section considers the
inductance, resistance and capacitance of the human’s arm
and finger and its capacitance relative to ground and the
system.
The third section is the inductance and resistance of the arc
which is created as section 2 approaches the system
(Section 4).
Section four is the system itself.
The combination of the capacitances and inductances in
these sections form a complex network of LC tank circuits
which will inject a variety of waveforms (transients) into the
system. These waveforms will range in frequency from very
high (5 GHz) to high (100 MHz) to low (20-50 MHz) plus a
variety of under damped and over damped waveforms.
Finally, in addition to current/voltage injection occurring as a
result of the discharge, there will be collapsing E and H
fields and significant high frequency RF waveforms. Many
times these waveforms propagate into shielded equipment
and cause system/device failures.
SUMMARY
Designers may be inclined to think that E field variation due
to near field electrostatics (as in the person being close
to the system but not touching it) can be eliminated by
shielding. This is usually not the case because it is difficult to
get a tight columbic shield around internal circuitry without
incurring significant additional manufacturing costs.
Additionally, the shielding will likely have seams, ventilation
holes, or I/O ports which represent a significant portion
of a wavelength (at 5 GHz). Therefore, E fields and corona
generated RF can be a problem. Finally, if the system has
I/O connectors, keyboards, antennas, etc., care must be
taken to adequately protect them from direct/and indirect
transients. The most effective resolution is to place a
TransGuard® as close to the device in need of protection as
possible.These recommendations and comments are based
upon case studies, customer input and Warren Boxleitner’s
book Electrostatic Discharge and Electronic Equipment - A
Practical Guide for Designing to Prevent ESD Problems.
Section 3�
ARC
LS
Section 1�
Human Body Model
LH
Section 2�
Arm/Hand Model
LA
RH
RS
Section 4
RA
CF
L
CAK
CH
CA
CK
R
Where: CH
RH
LH
CA
= Lumped capacitance between the human body and earth
= Lumped resistance of the human body
= Lumped inductance of the human body
= Lumped capacitance between the person’s arm and
earth
CAK = Lumped capacitance between the person’s arm
(and near portions of the body) and the keyboard
RA = Lumped resistance of the person’s arm’s discharge
path
LA = Lumped inductance of the person’s arm’s discharge
path
CF = Capacitance between person’s finger, hand, and the
keyboard
CK = Lumped capacitance of the keyboard to earth
RK = Lumped resistance of the keyboard earth ground path
LK = Lumped inductance of the keyboard earth ground path
Figure 4. Contact Discharge Model
92
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TransGuard®
AVX Multilayer Ceramic Transient Voltage Suppressors
Application Notes: Motor and Relay Application Study
PURPOSE
A significant number of end customers have experienced
failures of circuitry in and around low voltage relays and
motors. Additionally, EMI problems have been associated
with running motors.
This study is aimed at evaluating how TransGuards® can
reduce EMI from running motors and clamp transients
generated from relays and motors during power off.
DESCRIPTION
Three different motors and two different relays were chosen
to represent the wide range of possible devices used by
designers. Device choices were as follows:
MOTORS
Cramer 8001 series Geared Motor
12V, 30rpm (4800 RPM armature speed) 170ma
Start/Run Torque 30oz
Comair Rotron DC Biscut Fan - 24V, 480ma
Comair Rotron DC Biscut Fan - 12V, 900ma
RELAYS
Potter and Brumfield 24V Relay
1
⁄3 HP 120V AC, 10A 240 VAC Rating
Potter and Brumfield 12V Relay
1
⁄3 HP 120V AC, 10A 240 VAC Rating
A Tektronix TDS 784A four channel 1GHz 4G S/s digitizing
storage scope was used to capture the -1⁄2 LI2 transient
peak from the relays and motors. A x10 probe was
Tek Stop: 5.00MS/s
[
251 Acqs
T
connected to the scope and one leg of the relay/motor coil;
the probe’s ground was connected to the other relay
coil/motor wire. The scope was triggered on the pulse and
waveforms printed.
When suppression was introduced into the circuit, it was
placed directly on the relay coils/motor lead wires. The
axial TransGuard® and capacitors had a 19mm (3⁄4") total
lead length in each case. Upon careful consideration, it was
determined that this was a fairly common lead length for
such applications.
SUMMARY
GEARED MOTOR
The Cramer geared motor was tested while running (under
load) to determine its “on state” noise as well as under
loaded turn off conditions. Both TransGuards® and ceramic
capacitors were tested to determine the level of protection
they offer.
A 14V axial TransGuard® provided the best protection during
running and turn off. The VA100014D300 TransGuard® cut
the 60V unprotected turn off voltage spike to 30V. It also cut
the on state noise to 4.0V pk-pk due to its internal capacitance. The following is a summary of measured voltages
(scope traces are shown in Figures 1, 1A, 2, 2A).
Test Condition
Geared motor at
turn off
Geared motor
during running
Transient
without
Protection
Transient
with
.1µF cap
Transient
with
.01µF cap
Transient
with 14v
TransGuard®
60V
32V
48V
30V
12V pk-pk
4.0V pk-pk
4.0V pk-pk
4.0V pk-pk
Tek Stop: 5.00MS/s
[
]
64 Acqs
T
]
Fig. 1A. Geared
Motor Transient at
Turnoff with 14 V
TransGuard® 30 V 10
V/Division
Fig. 1. Geared Motor
Transient at Turnoff
without protection
60 V Gear Motor 20
V/Division
1
1
T
T
Ch1
2.00 Vⵒ
Tek Run: 5.00MS/s
[
Fig. 2. Geared Motor
Running noise
without protection
12 V pk-pk 2
V/Division
M 10.0μs Ch1
-3.68 V
5 Jul 1996 06:00:39
Sample
T
Ch1
1.00 Vⵒ
Tek Stop: 5.00MS/s
[
]
Fig. 2A. Geared
Motor Running with
14 V TransGuard®
4 V pk-pk 2
V/Division
T
M 10.0μs Ch1
-2.72 V
5 Jul 1996 06:07:57
147 Acqs
]
T
T
1
1
Ch1
200 Vⵒ
M 100ns Ch1
364mV
5 Jul 1996 05:07:06
Ch1
200mVⵒ
M 100ns Ch1
164mV
5 Jul 1996 05:43:56
93
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WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
TransGuard®
AVX Multilayer Ceramic Transient Voltage Suppressors
Application Notes: Motor and Relay Application Study
BISCUT FAN
The Comair 24V and 12V biscut fans were tested only for
transients at turn off. Results of those tests are shown in
the table at the right (as well as slope traces 3, 3A, 4, 4A).
Motor Type
24V Fan
12V Fan
(1) VA100030D650
Tek Stop: 5.00MS/s
[
482 Acqs
T
Transient
without
Protection
165V
60V
Transient
with
.1µF cap
120V
52V
Transient
with
.01µF cap
140V
64V
Transient
with
TransGuard®
65V(1)
30V(2)
TransGuard® / (2) VA100014D300 TransGuard®
Tek Stop: 5.00MS/s
[
]
506 Acqs
T
]
Fig. 3A. 24 V Biscut
Fan with 30 V
TransGuard®
65 V 50 V/Division
Fig. 3. 24 V Biscut
Fan without protection
165 V Biscut 50
V/Division
T
1
1
T
Ch1
5.00 Vⵒ
Tek Stop: 5.00MS/s
[
M 10.0μs Ch1
-6.1 V
7 Jul 1996 04:03:28
58 Acqs
T
Ch1
Tek Stop: 5.00MS/s
[
]
Fig. 4. 12 V Biscut
Fan without protection
60 V 20 V/Division
5.00 Vⵒ
265 Acqs
T
]
Fig. 4A. 12 V Biscut
Fan with 14 V
TransGuard®
30 V 20 V/Division
1
1
T
Ch1
94
M 10.0μs Ch1
-5.8 V
7 Jul 1996 04:06:48
2.00 Vⵒ
T
M 10.0μs Ch1
-7.72 V
7 Jul 1996 04:22:06
Ch1
2.00 Vⵒ
M 10.0μs Ch1
-2.12 V
7 Jul 1996 04:27:56
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WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
TransGuard®
AVX Multilayer Ceramic Transient Voltage Suppressors
Application Notes: Motor and Relay Application Study
RELAYS
The 12V and 24V relays were tested only for transients at
turn off. The results of those tests are shown in the table at
the right (as well as scope traces 5, 5A, 6, 6A).
Relay Type
24V
12V
(3) VA100026D580
Fig. 5. 24 V Relay
Transient without
protection
44 V 10 V/Division
Tek Stop: 5.00MS/s
[
75 Acqs
T
]
Transient
without
Protection
44V
105V
Transient
with
.1µF cap
24V
63V
Transient
with
.01µF cap
28V
100V
Transient
with
TransGuard®
28V(3)
30V(4)
TransGuard® / (4) VA100014D300 TransGuard®
Tek Stop: 5.00MS/s
[
Fig. 5A. 24 V Relay
Transient with 26 V
TransGuard®
10 V/Division
6873 Acqs
T
]
1
1
T
T
Ch1
1.00 Vⵒ Ch2 100mV
Tek Stop: 5.00MS/s
[
Ch1
M 10.0μs Ch1
-1.30 V
7 Jul 1996 03:21:47
501 Acqs
T
Tek Stop: 5.00MS/s
[
]
M 10.0μs Ch1 -520mV
7 Jul 1996 03:45:31
1.00 Vⵒ
154 Acqs
T
]
Fig. 6A. 12 V Relay
Transient with 14 V
TransGuard®
30 V 50 V/Division
Fig. 6. 12 V Relay
Transient without
protection
105 V 50 V/Division
1
1
T
Ch1
5.00 Vⵒ Ch2 100mV
T
M 10.0μs Ch1
-3.6 V
7 Jul 1996 02:47:37
Ch1
5.00 Vⵒ Ch2 100mV
M 10.0μs Ch1
-3.0 V
7 Jul 1996 02:50:00
CONCLUSIONS
TransGuards ® can clamp the wide range of voltages coming from small/medium motors and relays due to inductive
discharge. In addition, TransGuards® capacitance can help reduce EMI/RFI. Proper selection of the TransGuards® voltage is
critical to clamping efficiency and correct circuit operation.
95
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WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
TransGuard®
AVX Multilayer Ceramic Transient Voltage Suppressors
Application Notes: Multilayer Varistors In Automobile MUX Bus Applications
The current trend in automobiles is towards increased performance, comfort and efficiency. To achieve these goals,
automobile companies are incorporating an ever increasing
array of electronics into cars. As the electronic content within
cars increases, auto manufacturers are utilizing multiplex
bus designs to network all the sensors to a central point
(usually the engine control unit [ECU]). Multiplex lines save
wiring harness weight and decrease the harness’ complexity,
while allowing higher communication speeds. However,
the multiplex structure tends to increase the occurrence
and severity of Electromagnetic Interference (EMC) and
Electrostatic Discharge (ESD).
Multilayer varistors (MLVs) are a single component solution for
auto manufacturers to utilize on multiplex nodes to eliminate
both ESD and EMC problems. MLVs also offer improved
reliability rates (FIT rates <1 failure/billion hours) and smaller
designs over traditional diode protection schemes.
TYPICAL MUX NODE APPLICATION
There are a variety of SAE recommended practices for vehicle
multiplexing (J-1850, J-1939, J-1708, J-1587, CAN). Given
the number of multiplexing specifications, it is easy to
understand that bus complexity will vary considerably.
Each node has an interface circuit which typically consists
of a terminating resistor (or sometimes a series limiting
resistor), back to back Zener diodes (for over voltage
protection) and an EMC capacitor. Such a method is
compared to that of a multilayer varistor in Figure 1.
XCVR
BUS
XCVR
BUS
EMC
CAP
MLV PROTECTION METHOD
SINGLE COMPONENT SOLUTION
DIODE PROTECTION METHOD
THREE COMPONENT SOLUTION
Figure 1. Comparison of past node protection methods to
MLV node protection methods.
To more clearly understand the functional structure of a
MLV, see the equivalent electrical model shown in Figure 2.
• MULTIPLE ELECTRODES YIELD A CAPACITANCE
• THE CAPACITANCE CAN BE USED IN DECOUPLING
• CAPACITANCE CAN BE SELECTED FROM 30pF TO 4700pF
LB
CE
RV
RI
LB
RV
CE
BODY INDUCTANCE
DEVICE CAPACITANCE
VOLTAGE VARIABLE RESISTOR
INSULATION RESISTANCE
As the schematic in Figure 1 illustrates, the implementation
of MLV protection methods greatly simplifies circuit layout,
saves PCB space and improves system reliability. The MLV
offers many additional electrical improvements over
the Zener/passive schemes. Among those advantages
are higher multiple strike capability, faster turn on time and
larger transient overstrike capability. Further clarification on
the types of varistors compared to the performance of
Zener diodes follows.
CONSTRUCTION AND PHYSICAL
COMPARISON
The construction of Zinc Oxide (ZnO) varistors is a well
known, relatively straightforward process in which ZnO
grains are doped with cobalt, bismuth, manganese and
other oxides. The resulting grains have a Schottky barrier at
the grain interface and a typical grain breakdown voltage
(Vb) of approximately 3.6V per grain.
Currently, there are two types of varistors. Single layer
varistors (SLVs) – an older technology referred to as
“pressed pill,” typically are larger, radial leaded components
designed to handle significant power. Multilayer varistors
(MLVs) are a relatively new technology packaged in true EIA
SMT case sizes.
Beyond the ZnO material system and grain breakdown
similarity, MLVs and SLVs have little in common. That is, to
design a low voltage SLV, the grains must be grown as large
as possible to achieve a physically large enough part to be
handled in the manufacturing process. Typically it is very
difficult to obtain a consistent grain size in a low voltage
SLV process.
The electrical performance of SLV is affected by inconsistent
grain size in two ways. First, low voltage SLVs often exhibit
an inconsistent V b and leakage current (I L) from device
to device within a particular manufacturing lot of a given
rating. This contributes to early high voltage repetitive strike
wear out.
Secondly, SLVs with similar voltage and energy ratings as
MLVs typically exhibit a lower peak current capability due in
part to increased resistance of the long current path of the
large grains. This contributes to early repetitive high current
wear out.
At higher voltages, the grain size variations within SLVs play
a much smaller percentage role in Vb and leakage current
values. As a result, SLVs are the most efficient cost effective
way to suppress transients in high voltages (e.g., 115 VAC,
220 VAC).
RI
Figure 2. TransGuard® Equivalent Model.
96
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WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
TransGuard®
AVX Multilayer Ceramic Transient Voltage Suppressors
Application Notes: Multilayer Varistors In Automobile MUX Bus Applications
MLV MANUFACTURE
The construction of a MLV was made possible by employing
a variety of advanced multilayer chip capacitors (MLCC)
manufacturing schemes coupled with a variety of novel and
proprietary ZnO manufacturing steps. In the MLCC process,
thin dielectrics are commonly employed to obtain very large
capacitance values. It is that capability to design and manufacture multilayer structures with dielectric thicknesses of ≤1
mil that allows MLVs to be easily made with operating/
working voltages (V wm) as low as 3.3V (for use in next
generation silicon devices).
Once a particular working voltage has been determined
(by altering the ZnO dielectric thickness), the multilayer
varistor's transient energy capability is determined by the
number of layers of dielectric and electrodes. It is, therefore,
generally easy to control the grain size and uniformity within
a MLV due to the relative simplicity of this process.
MLVs exhibit capacitance due to their multiple electrode
design and the fact that ZnO is a ceramic dielectric.
This capacitance can be utilized with the device’s series
inductance to provide a filter to help limit EMI/RFI. The
equivalent model of a MLV is shown in Figure 2.
MLVs are primarily used as transient voltage suppressors. In
their “on” state, they act as a back-to-back Zener, diverting
to ground any excess, unwanted energy above their clamping voltage. In their “off” state, they act as an EMC capacitor
(capacitance can be minimized for high speed applications).
A single MLV, therefore, can replace the diode, capacitor
and resistor array on multiplex node applications.
Any TVS will see a large number of transient strikes over its
lifetime. These transient strikes will result from different
events such as well known ESD HBM, IC MM, alternator
field decay, load dump models and uncontrolled random
events. It is because of the repetitive strikes that all TVS
suppressors should be tested for multiple strike capability.
Typically, a TVS will fail due to high voltage, high current or
over-energy strikes.
High voltage repetitive strikes are best represented by IEC
61000-4-2 8kV waveforms. MLVs demonstrate a greatly
superior capability to withstand repetitive ESD high voltage
discharge without degradation.
High current repetitive strikes are represented by 8x20μs
150A waveforms. A comparison between MLVs, SLVs and
SiTVS is shown in Figures 3A, B, C respectively.
SILICON TVS MANUFACTURE
The construction of a silicon TVS departs dramatically
from that of either single layer varistor or multilayer varistor
construction. Devices are generally produced as Zener
diodes with the exception that a larger junction area
is designed into the parts and additional testing was likely
performed. After the silicon die is processed in accordance
to standard semi-conductor manufacturing practice, the
TVS die is connected to a heavy metal lead frame and
molded into axial and surface mount (SMT) configuration.
MLVs COMPARED TO DIODES
The response time for a silicon diode die is truly subnanosecond. The lead frame into which the die is placed
and the wire bonds used for die connections introduce a
significant amount of inductance. The large inductance of
this packaging causes a series impedance that slows the
response time of SiTVS devices. A best case response time
of 8nS on SOT23 and a 1.5nS to 5nS response time on
SMB and SMC products respectively are rather typical.
MLVs turn on time is <7nS. MLVs turn on time is faster than
SiTVS and that fast turn on time diverts more energy and
current away from the IC than any other protection device
available.
CONCLUSION
The technology to manufacture MLVs exists and allows the
manufacture of miniature SMT surge suppressors. MLVs do
not have the wear out failure mode of first generation (single
layer) varistors. In fact, MLVs exhibit better reliability numbers than that of TVS diodes. MLVs are a viable protection
device for auto multiplex bus applications.
Written by Ron Demcko
Originally printed in EDN PRODUCTS EDITION December
1997 by CAHNERS PUBLISHING COMPANY
150 AMP Current Repetitive Strike Comparison
Repetitive Strike Performance
8X20 μS 150A
Repetitive Strike Performance
8X20 μS 150A
Repetitive Strike Performance
8X20 μS 150A
1200
1000
800
1000
800
600
800
600
600
400
400
400
200
200
200
0
0.1
0.3
Energy (J)
26v
0.4
18v
30v
0.9
48v
1.2
60v
2.0
Figure 3A. Multilayer Varistor.
Vwm
0
0.1 0.17 0.2
0.25 0.3 0.4
0.5 0.6 0.8
0.9 1.0 1.2
8v
14v
18v
22v
28v
48v
56v
Energy (J)
Figure 3B. Single Layer Varistor.
5.5v
Vwm
18.8v
0
15v
13v
0.06
12v
11v
5.0v
0.84
Energy (J)
2.1
Vwm
Figure 3C. Silicon TVS.
97
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TransGuard
®
PACKAGING
• Chips
• Axial Leads
98
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WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
Paper Carrier Configuration
8mm Tape Only
10 PITCHES CUMULATIVE
TOLERANCE ON TAPE
±0.20mm (±0.008)
P0
D0
T
P2
E1
BOTTOM
COVER
TAPE
TOP
COVER
TAPE
F
W
E2
B0
G
T1
T1
A0
CENTER LINES
OF CAVITY
CAVITY SIZE
SEE NOTE 1
P1
User Direction of Feed
8mm Paper Tape
Metric Dimensions Will Govern
CONSTANT DIMENSIONS
Tape Size
8mm
D0
-0.0
1.50 +0.10
(0.059 +0.004
-0.0
)
mm (inches)
E
P0
P2
1.75 ± 0.10
4.00 ± 0.10
2.00 ± 0.05
(0.069 ± 0.004) (0.157 ± 0.004) (0.079 ± 0.002)
T1
G. Min.
R Min.
0.10
(0.004)
Max.
0.75
(0.030)
Min.
25.0 (0.984)
See Note 2
Min.
VARIABLE DIMENSIONS
Tape Size
8mm
P1
See Note 4
4.00 ± 0.10
(0.157 ± 0.004)
mm (inches)
E2 Min.
6.25
(0.246)
F
W
3.50 ± 0.05
(0.138 ± 0.002)
8.00 +0.30
-0.10
(0.315 +0.012
-0.004 )
A0 B0
T
See Note 1
1.10mm
(0.043) Max.
for Paper Base
Tape and
1.60mm
(0.063) Max.
for Non-Paper
Base Compositions
NOTES:
1. The cavity defined by A0, B0, and T shall be configured to provide sufficient clearance
surrounding the component so that:
a) the component does not protrude beyond either surface of the carrier tape;
b) the component can be removed from the cavity in a vertical direction without
mechanical restriction after the top cover tape has been removed;
c) rotation of the component is limited to 20º maximum (see Sketches A & B);
d) lateral movement of the component is restricted to 0.5mm maximum
(see Sketch C).
2. Tape with or without components shall pass around radius “R” without damage.
3. Bar code labeling (if required) shall be on the side of the reel opposite the sprocket
holes. Refer to EIA-556.
4. If P1 = 2.0mm, the tape may not properly index in all tape feeders.
Top View, Sketch "C"�
Component Lateral
0.50mm (0.020)
Maximum
0.50mm (0.020)
Maximum
Bar Code Labeling Standard
AVX bar code labeling is available and follows latest version of EIA-556
99
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WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
Embossed Carrier Configuration
8 & 12mm Tape Only
10 PITCHES CUMULATIVE
TOLERANCE ON TAPE
±0.2mm (±0.008)
EMBOSSMENT
P0
T2
T
D0
P2
DEFORMATION
BETWEEN
EMBOSSMENTS
E1
A0
F
TOP COVER
TAPE
B1
T1
W
B0
K0
S1
E2
CENTER LINES
OF CAVITY
P1
MAX. CAVITY
SIZE - SEE NOTE 1
B1 IS FOR TAPE READER REFERENCE ONLY
INCLUDING DRAFT CONCENTRIC AROUND B0
D1 FOR COMPONENTS
2.00 mm x 1.20 mm AND
LARGER (0.079 x 0.047)
User Direction of Feed
8 & 12mm Embossed Tape
Metric Dimensions Will Govern
CONSTANT DIMENSIONS
Tape Size
D0
8mm
and
12mm
1.50 +0.10
-0.0
-0.0
(0.059 +0.004
)
mm (inches)
E
P0
P2
1.75 ± 0.10
4.0 ± 0.10
2.0 ± 0.05
(0.069 ± 0.004) (0.157 ± 0.004) (0.079 ± 0.002)
S1 Min.
T Max.
T1
0.60
(0.024)
0.60
(0.024)
0.10
(0.004)
Max.
VARIABLE DIMENSIONS
Tape Size
B1
Max.
D1
Min.
E2
Min.
mm (inches)
F
P1
See Note 5
R
Min.
See Note 2
T2
W
Max.
A0 B0 K0
8mm
4.35
(0.171)
1.00
(0.039)
6.25
(0.246)
3.50 ± 0.05
4.00 ± 0.10
(0.138 ± 0.002) (0.157 ± 0.004)
25.0
(0.984)
2.50 Max.
(0.098)
8.30
(0.327)
See Note 1
12mm
8.20
(0.323)
1.50
(0.059)
10.25
(0.404)
5.50 ± 0.05
4.00 ± 0.10
(0.217 ± 0.002) (0.157 ± 0.004)
30.0
(1.181)
6.50 Max.
(0.256)
12.3
(0.484)
See Note 1
NOTES:
1. The cavity defined by A0, B0, and K0 shall be configured to provide the following:
Surround the component with sufficient clearance such that:
a) the component does not protrude beyond the sealing plane of the cover tape.
b) the component can be removed from the cavity in a vertical direction without mechanical
restriction, after the cover tape has been removed.
c) rotation of the component is limited to 20º maximum (see Sketches D & E).
d) lateral movement of the component is restricted to 0.5mm maximum (see Sketch F).
2. Tape with or without components shall pass around radius “R” without damage.
3. Bar code labeling (if required) shall be on the side of the reel opposite the round sprocket holes.
Refer to EIA-556.
4. B1 dimension is a reference dimension for tape feeder clearance only.
5. If P1 = 2.0mm, the tape may not properly index in all tape feeders.
Top View, Sketch "F"�
Component Lateral Movements
0.50mm (0.020)
Maximum
0.50mm (0.020)
Maximum
100
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Packaging of Chip Components
Automatic Insertion Packaging
REEL DIMENSIONS
mm (inches)
Tape
Size
A
Max.
B*
Min.
C
D*
Min.
N
Min.
8mm
330
(12.992)
1.5
(0.059)
13.0 +0.50
-0.20
(0.512 +0.020
-0.008 )
12mm
20.2
(0.795)
W1
W2
Max.
W3
8.40 +1.5
-0.0
-0.0
(0.331 +0.059
)
14.4
(0.567)
7.90 Min.
(0.311)
10.9 Max.
(0.429)
12.4 +2.0
-0.0
-0.0
(0.488 +0.079
)
18.4
(0.724)
11.9 Min.
(0.469)
15.4 Max.
(0.607)
50.0
(1.969)
Metric dimensions will govern.
English measurements rounded and for reference only.
101
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WELTRON Elektronik GmbH // Tel: 09852 6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
TransGuard®
AVX Multilayer Ceramic Transient Voltage Suppressors
PACKAGING - AXIAL LEADS / TAPE AND REEL
CLASS I / RS-296
5mm ± 0.5mm
(0.200" ± 0.020")
52.4mm ± 1.5mm
(2.063" ± 0.059")
6.35mm ± 0.4mm
(0.250" ± 0.016")
1.4mm
(0.055" MAX.)
1.2mm
(0.047" MAX.)
1.6mm
(0.063" MAX.)
356mm
(14.00" MAX.)
76mm
(3.000")
25.4mm
(1.000")
84mm
(3.300")
70mm
(2.750")
A.
B*.
C.
D1-D2.
E.
F.
G.
H.
I.
J.
K.
Optional
Design
H
D1
D2
F
C
E
A
B
K
Leader Tape: 300mm min. (12")
Splicing: Tape Only
Missing Parts: 0.25% of component count max.No consecutive missing parts
J
I
G
102
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AMERICAS
EUROPE
ASIA-PACIFIC
ASIA-KED
(KYOCERA Electronic Devices)
AVX Myrtle Beach, SC
AVX Limited, England
Tel: 843-448-9411
Tel: +44-1252-770000
AVX Northwest, WA
AVX S.A.S., France
Tel: 360-699-8746
Tel: +33-1-69-18-46-00
AVX/Kyocera, Asia, Ltd.,
Hong Kong
AVX Midwest, IN
AVX GmbH, Germany
Tel: +852-2363-3303
Tel: 317-861-9184
Tel: +49-0811-95949-0
AVX/Kyocera (S) Pte Ltd.,
Singapore
KED Hong Kong Ltd.
Tel: +852-2305-1080/1223
Tel: +65-6286-7555
AVX Mid/Pacific, CA
AVX SRL, Italy
AVX/Kyocera Yuhan Hoesa,
South Korea
Tel: 408-988-4900
Tel: +39-02-614-571
Tel: +82-2785-6504
AVX Northeast, MA
AVX Czech Republic
Tel: 617-479-0345
Tel: +420-57-57-57-521
AVX/Kyocera HK Ltd.,
Taiwan
KED Hong Kong Ltd.
Shenzen
Tel: +86-755-3398-9600
KED Company Ltd.
Shanghai
Tel: +86-21-3255-1833
KED Hong Kong Ltd.
Beijing
Tel: +86-10-5869-4655
Tel: +886-2-2656-0258
AVX Southwest, CA
AVX/ELCO UK
Tel: 949-859-9509
Tel: +44-1638-675000
AVX/Kyocera (M) Sdn Bhd,
Malaysia
AVX Canada
ELCO Europe GmbH
Tel: +60-4228-1190
Tel: 905-238-3151
Tel: +49-2741-299-0
AVX South America
AVX S.A., Spain
AVX/Kyocera International
Trading Co. Ltd.,
Shanghai
Tel: +55-11-4688-1960
Tel: +34-91-63-97-197
Tel: +86-21-3255 1933
AVX Benelux
AVX/Kyocera Asia Ltd.,
Shenzen
Tel: +65-6509-0328
Tel: +86-755-3336-0615
Kyocera Corporation
Japan
AVX/Kyocera International
Trading Co. Ltd.,
Beijing
Tel: +81-75-604-3449
Tel: +31-187-489-337
KED Taiwan Ltd.
Tel: +886-2-2950-0268
KED Korea Yuhan Hoesa,
South Korea
Tel: +82-2-783-3604/6126
KED (S) Pte Ltd.
Singapore
Tel: +86-10-6588-3528
AVX/Kyocera India
Liaison Office
Tel: +91-80-6450-0715
Contact:
A KYOCERA GROUP COMPANY
http://www.avx.com
S-TTVS0M1011-C
WELTRON Elektronik GmbH // Tel: 09852
6727-0 // Fax: 09852 6727-67 // E-Mail: [email protected]
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