Automotive OEM Catalog

Automotive OEM Catalog
A Circuit Protection Leader
Littelfuse is committed to the automotive industry, and that commitment is the key to Littelfuse’s leadership in automotive circuit protection. It promotes the growth of our technology, solidifies our partnerships with customers around the world, and strengthens
our assurance of quality from product design and manufacturing to delivery and service.
Technology
With leadership comes responsibility. It has become our job to
forecast the future of automotive circuit protection, and we take that
job very seriously. No other manufacturer has impacted the growth of
circuit protection technology as much as Littelfuse.
Littelfuse holds
170+ patents on circuit protection devices, more than all the other
fuse manufacturers combined.
With an engineering team made up of the world’s
top circuit protection designers, an Advanced
Materials Lab devoted solely to the exploration of new technologies, and a worldwide
sales staff in close contact with automotive
manufacturers around the globe, Littelfuse is
driving the future of circuit protection. Whether
it is alternative power sources, electronics applications, or unique accessories with special needs, Littelfuse is
developing the solutions today for the challenges you will face tomorrow.
Partnerships
Quality
Our commitment to the automotive industry is apparent in the way we
view our customers - as partners. Littelfuse has strategic partnerships with every major automotive OEM, working with their designers
to find out exactly what they need and provide them with timely, effective and safe solutions. Littelfuse’s engineering staff is always ready
to help you with “Quick Fixes” to your circuit protection dilemmas, producing specially designed products that meet your needs right now.
Quality is essential in circuit protection. It is not just a word. It is a
factor that can impact the safety and economic viability of those using
our products and their customers. Littelfuse is built on a tradition of
quality and has earned a reputation for product reliability and exemplary service. We design our fuses to meet the highest expectations,
test them to exceed all required standards, and work towards reduced
cycle times, improved productivity and zero defects.
With sales, service and distribution centers in the United States,
United Kingdom, The Netherlands, Brazil, Korea, Philippines, Mexico,
Singapore, Hong Kong and Japan, and manufacturing facilities located throughout the world, Littelfuse is a global circuit protection
provider. Our worldwide reach confirms our ability to partner with
customers in every automotive market, as well as an international
assembly of suppliers who demonstrate an ability and commitment to
support the quality we promise to our customers.
With our entire worldwide operations ISO 14001 certified, QS-9000
and TS16949 certification attained by all our facilities in North
America and Europe, Littelfuse takes extra steps to ensure that we
are ready to meet the challenges ahead. With the largest selection of
circuit protection products available to the automotive industry, and a
commitment to developing new technologies, sustaining mutually beneficial long-term partnerships, and continuously improving quality,
Littelfuse is the circuit protection provider of choice for automotive
OEMs around the world.
Visit our web site at www.littelfuse.com
Fuseology
4
®
Low Profile JCASE Fuses 9
CABLEPRO® Fuses
10
Low Profile MINI® Fuses
11
MINI® Fuses
12
MAXI® Fuses
13
®
ATO Fuses
14
JCASE® Fuses
15
®
MIDI Fuses
16
®
MEGA Fuses
17
MINI® 42 Fuses
18
MAXI® 42 Fuses
19
JCASE® 42 Fuses
20
The Littelfuse Quality Policy
Littelfuse is committed to being sensitive to customer expectations and to providing quality products and services
at a competitive price. In support of this commitment, Littelfuse will:
PAL Fuses
TM
21
EV Fuses
22
Automotive Electronics
23
Fuseholders
27
Special Products
32
Fuse Pullers
33
Encourage quality awareness and quality performance in all associates at all levels of the Company through
management leadership;
Promote the participation of all associates in making individual contributions to the quality improvement
process;
Support continuous quality improvement by providing our associates with the necessary training, tools, and
information feedback to enable enhancement of the quality of our products and services;
Develop relationships with suppliers who consistently demonstrate their ability to fulfill quality, price and delivery objectives that are mutually beneficial; and,
Build quality into our products and services, striving for zero defects in everything we do, thereby reducing
cost and increasing Total Customer Satisfaction.
3
Fuseology
Types of Overcurrents
An overcurrent is any current which exceeds the ampere rating
of wiring, equipment or devices under conditions of use. The
term “overcurrent” includes both overloads and short circuits.
A. Overloads
An overload is an overcurrent which is confined to normal
current paths. An overload occurs when the current
exceeds the value for which the wires or equipment are
rated. This can happen when too many devices are connected to the circuit, or when a device connected to the circuit malfunctions in a way that causes it to draw higher than
normal current, usually in the range of one to six times normal current. Sustained overloads eventually overheat circuit
components. Therefore, fuses must open circuits experiencing sustained overloads before damage occurs.
B. Short Circuits
A short circuit is current out of its normal path. It occurs
when accident or malfunction creates an unintended path for
the electricity to flow from the battery or alternator to ground.
This shorter, more direct path to ground bypasses the resistance normally offered by the wiring and devices connected
to the circuit. With virtually no resistance left to impede current flow, the voltage forces higher and higher current to flow
through the wires to the point of the short. Under such a
condition, the current will quickly build to such a high level
that the heat generated can cause insulation to burn and
equipment to be damaged unless the circuit is opened
through the use of a fuse.
III.
Fuse Selection Parameters
Since overcurrent protection is crucial to reliable electrical system operation and safety, fuse selection and application should
be carefully considered. When selecting fuses, the following
parameters should be evaluated:
A. Voltage Rating
The voltage rating, as marked on a fuse, indicates the maximum voltage of the circuit for which the fuse is designed to
operate safely in the event of an overcurrent. Therefore, the
fuse’s voltage rating must equal or exceed the available circuit voltage where the fuse will be installed. System voltage
exceeding the fuse’s rated voltage may result in fuse damage. The voltage rating is 32 volts DC for the MINI®, MAXI™,
ATO®, MIDI®, MEGA®, and CABLEPRO® Fuses.
B. Interrupting Rating
The interrupting rating (also known as breaking capacity or
short circuit rating) is the maximum current, as stated by the
manufacturer, which the fuse can safely interrupt at rated
voltage. During a fault or short circuit condition, a fuse may
4
receive an instantaneous current many times greater than its
normal operating current. Safe operation requires that the
fuse remain intact (no body rupture) and clear the circuit.
The interrupting rating is 1000A @ 32 volts DC for the MINI,
MAXI, ATO, and JCASE fuses, and 2000A @ 32 volts DC
for the MEGA, MIDI, and CABLEPRO Fuses.
C. Time-Current Characteristics
A fuse’s time-current characteristics determine how fast it
responds to different overcurrents. All fuses have inverse
time-current characteristics, so opening time decreases as
overcurrents increase. Time-current characteristics are presented graphically on standardized “log-log” paper. Figure 1
is a sample time-current curve for the MAXI Fuse series for
fuses rated 20-60A. Current values increase from left to
right, and time increases from bottom to top. The average
melting time for any current can be determined from the
curve. For example, from Figure 1 it can be determined that
a 20A MAXI Fuse experiencing an overload of 100A will
open in about 0.5 seconds. At 40A, the same 20A MAXI
Fuse would open in about 15 seconds.
Time-current curves are also used to compare fuses of the
same series but of different current ratings. Suppose it was
desired to compare the opening times of 20A and 60A MAXI
Fuses at an overload of 100A. From the curve in Figure 1,
one can see that the 20A fuse opens in about 0.5 seconds
at 100 amps, whereas the 60A fuse does not open until
about 100 seconds.
20A
25A
30A
35A
40A
50A
60A
II.
Introduction
The purpose of this Fuseology section is to promote a better
understanding of fuses and some of the more common application details. The fuses to be considered are current-sensitive
devices which are designed as the intentional weak link in the
electrical circuit. The function of a fuse is to provide discrete
component or complete circuit protection by reliably melting
under overcurrent conditions and thus safely interrupting the flow
of current.
1000
100
TIME IN SECONDS
I.
10
1
0.1
0.01
10
100
1000
10000
CURRENT IN AMPERES
Figure 1: Average Melting-Current Curve for the
MAXI Fuse Series (20-60A)
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Fuseology
It is important to note that time-current curves give only
average melting times and are presented as a design aid but
are not considered as part of the fuse specifications.
operation at 25˚C to avoid nuisance blowing. For example, a fuse with a current rating of 10A is not usually recommended for operation at more than 7.5A in a 25˚C
ambient.
The term used in fuse design that describes how rapidly a
fuse responds to various overcurrents is the fuse’s “characteristics.” Automotive fuse characteristics are determined by the
fuse’s degree of time delay. Initial or start-up pulses are normal for many automotive applications and require fuses to
have a time delay designed in to enable them to survive
these pulses and still provide protection against prolonged
overloads. Fuses such as the MINI® Fuse and ATO® Fuse
have a moderate degree of time delay, whereas fuses like the
MAXI™ Fuse and MEGA® Fuse have a high degree of time
delay which enables them to handle high inrush currents like
those caused by motor start-ups. Figure 2 compares sample
time-current curves of a 30A MINI Fuse to a 30A MAXI Fuse.
To see that the MAXI Fuse has more time delay than the
MINI Fuse, compare their opening times at an overload of
100A. Despite the fact that the fuses are the same rating, the
MINI Fuse opens in about 0.1 seconds while the MAXI Fuse
opens in about 2.2 seconds.
2.
Rerating for Ambient Temperature
The current carrying capacity tests of fuses are performed at 25˚C and will be affected by changes in ambient temperature. At higher ambient temperatures, a fuse
will respond faster to a given overload. Conversely, at
lower ambient temperatures, a fuse will respond slower
to a given overload. In addition, the temperature of the
fuse increases as the normal operating current
approaches or exceeds the rating of the fuse.
A MINI Fuse operating at 25˚C and 110% of rated current
has a minimum life of 100 hours. However, if that same
fuse were operated at a very high ambient temperature,
rerating would be necessary. Figure 3 is a sample temperature rerating curve for the MINI Fuse. The following
example shows how to use such a curve.
Suppose there is a normal operating current of 15
amperes in a particular circuit, and the ambient temperature will be 105˚C instead of 25˚C. Which MINI Fuse rating should be used? From Figure 3, the percent of rated
current to be used at an ambient temperature of 105˚C is
88%, so:
When selecting a fuse, the start-up pulse should be defined
1000
Ideal fuse rating = Normal operating current
Temp rerating factor x 0.75
100
15A
0.88 x 0.75
120
10
115
Rerating Factor (% Rated Current)
TIME IN SECONDS
=
30A MAXITM FUSE
30A MINITM FUSE
1
0.1
110
105
100
95
90
85
80
75
0.01
70
1
10
100
1000
CURRENT IN AMPERES
-40
10000
-20
0
40
20
60
80
100
120
140
Ambient Temperature (˚C)
Figure 2: Average Melting-Current Curve Comparing 30A MINI Fuse
to 30A MAXI Fuse
Figure 3: MINI Fuse 297 Series Temperature Rerating Curve
=
and then compared to the time-current curve for the fuse.
D. Current Rating
The current rating is the maximum current which the fuse can
continuously carry under specified conditions.
1.
Normal Operating Current
The current rating of a fuse is typically derated 25% for
22.73A
Therefore, a 25A or larger MINI Fuse should be used.
E.
Transient Overcurrent Considerations
Transient pulses of inrush current are commonplace in vehicle electrical systems. The transient overcurrent pulses affect
the life of automotive fuses.
5
Fuseology
1.
Figure 4 shows how I2t of the pulse can be calculated
from the graph of the pulse current as a function of
time.
Figure 5 is a graph of the pulse cycle withstand capability of blade fuses. Because electrical pulse conditions
can vary considerably from one application to another,
I2t
I2t is an expression of the available thermal energy
resulting from current flow. With regard to fuses, the
term is usually expressed as melting, arcing, and total
clearing I2t. The units for I2t are expressed in amperesquared-seconds [A2s].
Melting I2t: the thermal energy required to melt a specific fuse element.
1000000
Arcing I2t: the thermal energy passed by a fuse during
the arcing time. The magnitude of arcing I2t is a function of the available voltage and stored energy in the
circuit.
I2t has two important applications to fuse selection. The
first is pulse cycle withstand capability and the second
is selective coordination.
1000
Pulse Cycle Withstand Capability
Electrical pulses produce thermal cycling and possible
mechanical fatigue that could affect the life of the fuse.
100
For this reason, it is important to know the pulse cycle
withstand capability of the fuse, which is defined as the
number of pulses of a given I2t value that can be withstood by the fuse without opening, assuming that there
is sufficient cool down time between pulses.
10
33
2.
10000
NUMBER OF PULSES
Total Clearing I2t: the thermal energy through the fuse
from overcurrent inception until current is completely
interrupted. Total clearing I2t = (melting I2t) + (arcing I2t).
100000
3 sigma confidence limit
Actual # of pulses
1
0.1
1
RELATIVE I2t
WAVESHAPE
FUNCTION AND VALUE
i=k
I2t = ic2t
ic
t
ib
t
i = ic + kt
I2t = (1/3)(ic2+ibic+ib2)t
t
i = ic sin t
I2t = (1/2)ic2t
ic
ic
i = + kt
I2t = (1/3)ic2t
ic
t
Figure 5: Pulse Cycle Withstand Capability for Blade Fuses
application testing is recommended to establish the
ability of the fuse design to withstand the pulse condition.
3.
Selective Coordination
In a selectively coordinated system, only the fuse
immediately on the line side of an overcurrent opens.
Upstream fuses remain closed and undamaged. All
other equipment remains in service, which simplifies
locating overloaded equipment or short circuits. In
Figure 6, if a short circuit arises behind fuse #1, fuse #1
should open and fuse #2 should stay closed and
undamaged. The condition necessary to assure this
result is that the minimum melting I2t of the supply side
fuse (fuse #2) must be greater than the total clearing I2t
of the load side fuse (fuse #1). This condition results in
FUSE #2
ic
t
t
ic
t
i = kt2
I2t = (1/5)ic2t
i = ice-t/t
I2t = (1/2)ic2t
Figure 4: Evaluating the I2t of a Variety of Current Wave Shapes
6
FUSE
#1
SUPPLY SIDE
LOAD
SIDE
Figure 6: Selective Coordination for Fuses in Series
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Fuseology
the load side fuse opening before the supply side fuse
begins to melt. Minimum melting and total clearing I2t
data are given in this catalog.
IV. Voltage Drop Across Terminals
A fuse is only as good as the system in which it is used. One
aspect of the electrical system that has considerable effects on
the performance of the fuse is the quality of the connection
between the fuse and the cable it protects. High voltage drop
across the fuse/terminal interface creates additional thermal
loading, which in turn causes shifts in the time-current characteristics of the fuse. Table 1 below gives the maximum recommended voltage drop per terminal for automotive fuses. Figure
7 indicates the measurement locations used to determine the
TYPE
ATO® FUSE
MINI® FUSE
MAXI® FUSE
MEGA® FUSE
MAXIMUM RECOMMENDED
VOLTAGE DROP PER TERMINAL
[mV]
30
30
30
15
Table 1: Maximum Recommended Voltage Drop per Terminal
voltage drop across the terminal. The voltage drop across the
left terminal would be V2-4 and the voltage drop across the right
terminal would be V1-3.
V. Skiving Process
In order to provide predictable fuse opening characteristics, it is
necessary to have tight fuse element resistance control during
the manufacturing process.
The resistance of electrically conductive material is determined
by the formula: R=pL/A, where p is the resistivity, L is the length
of the material, and A is the area of material cross-section. A is
determined by the thickness T and width W of cross-section
area. The thickness T is the parameter to control and adjust
with least variation compared with other parameters’ adjustment
in resistance control.
Littelfuse accurately controls the thickness and resistivity of the
fuse element by using a skiving process in manufacturing.
Skiving is the removal of a precise amount of material from a
strip of that material. During fuse production, a coil of material is
skived and the fuse element is stamped from the skived section.
Figure 8 shows the coil of material and the skived section. The
A
A
1
2
SECTION A-A
Figure 8: Coil of Material with Skived Section
4
3
Skived
Occurrence
Unskived
Figure 7: Measurement Locations along the Fuse/Terminal/Cable
System Used to Determaine the Voltage Drop across the Terminal
Resistance
Figure 9: Resistance Spread - Skived vs. Unskived
7
Fuseology
skiving process ensures that each fuse is a calibrated device.
Figure 9 is a graph of the resistance spread with skived vs.
unskived showing the increased accuracy provided by skiving.
Maximum Recommended Continuous Current
Max. Continuous Current (A)
Wire Size
VI. Diffusion
Diffusion Pill Technology is a mixing of molecules, atoms or crystals in the solid, liquid or gaseous state. Diffusion Pill Technology
is often used in the design of fuses for automotive, electronic and
industrial fuse applications.
“M-effect” is the method of diffusing one metal into another to
form a new alloy with a lower melting point. Littelfuse uses the
“M-effect” to produce three very desirable characteristics in fuse
designs: lower melting temperature, time delay, and lower voltage
drop.
By affixing a diffusion pill tin to the element, the melting temperature is decreased. This decrease in melting temperature reduces
the fuse rating. In order to reestablish its original rating the fuse
elements’ cross section needs to increase. An increase in cross
section increases the blow time at higher overload condition. A
higher degree of time delay enables a fuse to withstand higher
current inrush pulses. This increase in cross section reduces the
overall fuse resistance and voltage drop.
VII. Match Wire Gauge to Fuse
In order to protect wiring under all overload and short circuit conditions, it is necessary to standardize the fuse and wire selection
process.
mm2
0.3
0.5
0.75
0.8
1
1.5
2
2.5
3
4
5
6
8
10
13
19
At 25˚C
Gauge No.
20
18
16
14
12
10
8
6
4
At 80˚C
At 105˚C
GXL (1)
GPT (2)
GXL (1)
GPT (2)
GXL (1)
15
21
27
31
33
43
50
60
68
80
90
103
125
146
170
221
10
15
21
22
23
30
36
42
47
56
65
73
87
103
120
156
11
16
20
23
25
33
37
45
51
61
68
78
96
111
129
166
4
6
7
7
9
12
14
15
18
22
23
28
30
40
47
61
9
13
17
19
20
27
32
38
42
50
58
64
79
90
105
137
(1) = General purpose cross link polyethylene insulation wire with a
maximum insulation temperature of 155˚C.
(2) = General purpose thermoplastic insulation wire with a maximum
insulation temperature of 90˚C.
Fuses have controlled opening characteristics, and each wire
gauge has its respective current carrying capacity. Fuses need to
be selected to always protect the wire insulation from damage.
In the selection of wire gauge at various ambient temperatures, it
is important to consider the worst case or highest ambient temperature for the application. Wires derate to a much higher
degree than fuses, because wire insulation temperature capability
is affected much more severely.
For further reference, there are specific application guides available.
Please consult the nearest Littelfuse sales office if any additional
application information is needed.
8
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New Low Profile JCASE® Fuses
The Low Profile JCASE fuse has similar performance characteristics
as the standard JCASE fuse. The lower overall height reduction
allows for more space and weight savings and also allows for a
shorter male blade terminal, saving additional weight and material
savings in fuse box designs.
LOW PROFILE JCASE FUSE TABLE
Part
Number
895020
895025
895030
895040
895050
895060
Current
Rating
(A)
20
25
30
40
50
60
TIME-CURRENT CHARACTERISTICS
Housing
Color
Blue
White
Pink
Green
Red
Yellow
% of
Rating
100
135
200
350
600
Opening Time
Minimum
Maximum
100 hrs
60 s
4s
0.2 s
0.04 s
—
1800 s
60 s
7s
1s
Interrupting Rating: 1000A @ 58 VDC
Voltage Rating: 58 VDC
Ambient Temp: -40˚C to + 125˚C
9
New CABLEPRO® Cable Protector Fuses
The CablePro fuse is designed to replace conventional wire fusible
links in high current automotive applications. The slim package of the
CablePro fuse fits into tight locations and has predictable electrical
opening characteristics similar to the Mega fuse. The predictable
and reliable performance characteristics of the CablePro, makes this
product a far superior method for protecting high current circuits
over wire fusible links.
CABLEPRO CABLE Table
Time-Current Characteristics
Part
Number
Current
Rating
(A)
Wire
Size
496060
496080
496100
496125
496150
496175
496200
60
80
100
125
150
175
200
5mm2 (10AWG)
8mm2 (8AWG)
8mm2 (8AWG)
13mm2 (6AWG)
19mm2 (4AWG)
19mm2 (4AWG)
19mm2 (4AWG)
% of
Rating
100
135
200
350
600
Opening Time
Minimum
100 hrs.
120 s
10 s
1s
0.3 s
Maximum
—1800 s
300 s
15 s
5s
CABLE TYPE:
SAE J1127(4 & 6 AWG) & SAE J1128(8 and 10 AWG)
INTERRUPTING RATINGS:
2000 amperes @ 32 VDC
ENVIRONMENTAL SPECIFICATIONS:
Operating Temperature Range: -40ºC to +125ºC
10
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New Low Profile MINI Fuses
®
The Low Profile Mini fuse has similar performance characteristics as
the standard Mini fuse. The lower overall height allows for more
space and weight savings. The Low Profile Mini fuse is designed to
mate with tuning-fork terminals, which provides additional weight and
material savings in fuse box designs by eliminating the need for
female box terminals.
MINI Fuse Table
Part
Number
Current
Rating
(A)
Housing
Color
897002
897003
897004
897005
89707.5
897010
897015
897020
897025
897030
2
3
4
5
7.5
10
15
20
25
30
Gray
Violet
Pink
Tan
Brown
Red
Blue
Yellow
Clear
Green
Time-Current Characteristics
% of
Rating
110
135
200
350
600
Opening Time
Minimum
100 hrs.
0.75 s
0.15 s
0.080 s
0.030 s
Maximum
—1800 s
5s
0.250 s
0.100 s
Interrupting Rating: 1000A @ 58 VDC
Voltage Rating: 58 VDC
Ambient Temp: -40˚C to +125˚C
11
MINI® Blade Fuse
2A
3A
4A
5A
7.5A
10A
15A
20A
25A
30A
The MINI Fuse is quickly becoming the new standard for vehicle circuit
protection throughout the world. Its miniature design, patented by
Littelfuse, meets the need for more circuits to be protected while utilizing less space, and its ability to cope with high temperatures in
adverse environments makes the MINI Fuse the recommended choice
for protection.
1000
TIME IN SECONDS
100
10
1
0.1
3.8
0.01
1
10
100
1000
CURRENT IN AMPERES
8.8
Time-Current Characteristics
% of
Rating
110
135
200
350
600
7.5
0.81
2.8
10.9
Meets SAE J2077
Part
Number
Current
Rating
(A)
Housing
Color
297002
297003
297004
297005
29707.5
297010
297015
297020
297025
297030
2
3
4
5
7.5
10
15
20
25
30
Gray
Violet
Pink
Tan
Brown
Red
Blue
Yellow
Clear
Green
Typ. Voltage
Drop at
Rated Current
(mV)
171
153
121
129
135
108
98
96
86
87
See page 32 for
MINI Resistors,
Diodes, and Shunts.
Maximum
—600 s
5s
0.500 s
0.100 s
Interrupting Rating: 1000A @ 32 VDC
Voltage Rating: 32 VDC
Ambient Temp: -40˚C to +125˚C
MINI Fuse Temperature Rerating Curve
120
115
Rerating Factor (% Rated Current)
MINI Fuse Table
Opening Time
Minimum
100 hrs.
0.75 s
0.15 s
0.080 s
0.030 s
110
105
100
95
90
85
80
75
70
-40
-20
0
20
40
60
80
100
120
140
Ambient Temperature (˚C)
12
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MAXI®Blade Fuse
20A
25A
30A
35A
40A
50A
60A
With “Diffusion Pill Technology,” the MAXI Fuse provides excellent
time delay characteristics and low heat dissipation. Designed and
patented by Littelfuse, the MAXI Fuse is ideal for motor powered
applications which have large inrush currents.
1000
TIME IN SECONDS
100
10
1
0.1
0.01
10
100
1000
10000
CURRENT IN AMPERES
Time-Current Characteristics
29.21
(1.15")
8.85
(.35")
% of
Rating
135
21.59
(.85")
200
12.70
(.50")
0.81
(.032")
350
600
8.13
(.32")
Opening Time Max/Min (s)
20A 25A 30A 35A 40A 50A 60A 70A
1800 1800 1800 1800 1800 1800 1800 1800
60
60
60
60
60
60
60
60
20
30
30
40
40
50
60
60
4
6
6
8
8
10
15
4
2
4
4
5
5
6
7
2
0.7
1
1
1.4
1.4
1.7
2
0.20
1
1
1
1
1
1
1
1
0.15 0.20 0.20 0.20 0.20 0.20 0.20
.1
80A
1800
60
60
4
2
0.20
1
.1
Interrupting Rating: 1000A @ 32 VDC
Voltage Rating: 32 VDC
Ambient Temp.: -40˚C to +125˚C
29.21
(1.15")
MAXI Fuse Temperature Rerating Curve
Part
Number
299020
299025
299030
299035
299040
299050
299060
299070
299080
Current
Rating
(A)
20
25
30
35
40
50
60
70
80
Housing
Color
Yellow
Gray
Green
Brown
Orange
Red
Blue
Tan
Clear
Meets SAE J1888
Typ. Voltage
Drop at
Rated Current
(mV)
76
75
77
75
75
73
77
61
62
Rerating Factor (% Rated Current)
120
MAXI Fuse Table
115
110
105
100
95
90
85
80
75
70
-40
-20
0
20
40
60
80
100
120
140
Ambient Temperature (˚C)
13
The ATO Fuse was designed and patented by Littelfuse in 1976 and
set the standard for automotive circuit protection. It features industry
standard color coding to indicate amperage rating.
2A
3A
4A
5A
7.5A
10A
15A
20A
25A
30A
35A
40A
1A
ATO® Blade Fuse
1000
TIME IN SECONDS
100
10
1
19.05
(.75")
0.1
5.08
(.20")
12.19
(.48")
0.01
6.35
(.25")
1
10
100
1000
CURRENT IN AMPERES
0.66
(.026")
4.064
(.16")
14.48
(.57")
Time-Current Characteristics
Current
Rating
% of
Rating
110
ATO Fuse Table
Housing
Color
257001
257002
257003
257004
257005
25707.5
257010
257015
257020
257025
257030
257035
257040
1
2
3
4
5
7.5
10
15
20
25
30
35
40
Black
Gray
Violet
Pink
Tan
Brown
Red
Blue
Yellow
Clear
Green
Blue-Green
Orange
200
Typ. Voltage
Drop at
Rated Current
(mV)
176
141
137
136
128
116
109
102
98
92
84
87
96
See page 32 for
ATO Resistors,
Diodes, and
Shunts.
350
600
100 hrs
0.35 s
0.75 s
0.10 s
0.15 s
0.020 s
0.080 s
600
600
5
5
0.5
0.5
.1
.15
s
s
s
s
s
s
s
s
Interrupting Rating: 1000A @ 32 VDC
Voltage Rating: 32 VDC
Ambient Temp.: -40˚C to +105˚C
ATO Fuse Temperature Rerating Curve
120
Rerating Factor (% Rated Current)
Part
Number
Current
Rating
(A)
1-40A
1-2A
3-40A
1-2A
3-40A
1-2A
3-40A
1-30A
35-40A
135
Meets SAE J1284
Opening Time
Minimum
Maximum
115
110
105
100
95
90
85
80
75
70
-40
-20
0
20
40
60
80
100
120
140
Ambient Temperature (˚C)
14
Visit our web site at www.littelfuse.com
The JCASE is a cartridge style fuse with female terminal design, providing both increased time delay and low voltage drop to protect high
current circuits and handle inrush currents. The JCASE was designed
and patented by Littelfuse.
20A
30A
40A
50A
60A
JCASE® Cartridge Fuse
1000
TIME IN SECONDS
100
10
1
0.1
14.1
12.0
0.01
1
10
100
1000
CURRENT IN AMPERES
10000
TIME-CURRENT CHARACTERISTICS
27.0
24.4
% of
Rating
18.7
12.1
100
135
200
350
600
10.0
1.0
5.5
See page 32 for
JCASE Shunt
—
1800 s
60 s
7s
1s
Typ. Voltage
Drop at
Rated Current
(mV)
106
101
91
87
88
87
110
Rerating Factor (% Rated Current)
Housing
Color
Blue
White
Pink
Green
Red
Yellow
100 hrs
60 s
4s
0.2 s
0.04 s
JCASE Fuse Series Temperature Rerating Curve
JCASE CARTRIDGE FUSE TABLE
Part
Number
495020
495025
495030
495040
495050
495060
Maximum
Interrupting Rating: 1000A @ 32 VDC
Voltage Rating: 32 VDC
Insertion Force: 53N max. (12 lb.)
Extraction Force: 9N min. (2 lb.)
Ambient Temp: -40˚C to + 125˚C
6.7
Current
Rating
(A)
20
25
30
40
50
60
Opening Time
Minimum
105
100
95
90
85
-40 -30 -20 -10
0 10
20 30 40 50 60 70 80 90 100 110 120
Ambient Temperature (°C)
15
30A
40A
50A
60A
70A
80A
100A
125A
150A
200A
MIDI® Fuse
1000
The MIDI Fuse offers a bolt-on space saving fuse for high current
wiring protection and provides time delay characteristics with
“Diffusion Pill Technology”. The MIDI Fuse was designed and patented by Littelfuse,
TIME IN SECONDS
100
10
1
0.1
41
0.01
10
100
12
1000
10000
CURRENT IN AMPERES
TIME-CURRENT CHARACTERISTICS
16
5.5
30
8.0 (30-80A)
4
8.3 (100-200A)
MIDI Fuse Table
Part
Number
498030
498040
498050
498060
498070
498080
498100
498125
498150*
498200*
Current
Rating
(A)
30
40
50
60
70
80
100
125
150
200
Typ. Voltage
Drop at
Rated Current
(mV)
65
65
65
68
70
58
60
71
77**
77**
* Parts with asterik are short circuit protectors only.
** Voltage drop measurements for short circuit protectors
are at 75% of rated current.
150-200
Max
Min
Max
100 hrs
100 hrs
4 hrs
90 s
5s
0.5 s
0.1 s
3600 s
100 s
3s
1s
1s
.3 s
0.1 s
15 s
3s
1s
MIDI Fuse Series Temperature Rerating Curve
120
115
110
105
100
95
90
85
80
75
70
-40
16
Min
Interrupting Rating: 2,000A @ 32 VDC
Voltage Rating: 32 VDC
Ambient Temp.: -40˚C to +125˚C
Rerating Factor (% Rated Current)
0.41 (30-80A)
0.63 (100-200A)
30-125
% of
Rating
75
100
110
150
200
300
500
-20
0
20
40
60
80
Ambient Temperature (°C)
100
120
140
Visit our web site at www.littelfuse.com
40A
60A
80A
100A
125A
150A
175A
200A
225A
250A
MEGA® Fuse
1000
The MEGA Fuse is designed for high current circuit protection up to
500 amperes with “Diffusion Pill Technology”, the MEGA Fuse also
provides time delay characteristics. Designed and patented by
Littelfuse, the MEGA Fuse is ideal for battery and alternator protection
application and other heavy gauge cables requiring ultra-high current
protection.
TIME IN SECONDS
100
10
1
0.1
0.01
10
50.8 (2.0")
100
1000
10000
CURRENT IN AMPERES
8.64 (.34")
TIME-CURRENT CHARACTERISTICS
19.05 (.75")
16.26 (.64")
(1.15")
68.58 (2.70")
11.94 (.47")
1.02 (.04") 40-250A
10.67 (.42")
1.83 (.072") 300-500A
Part
Number
298040
298060
298080
298100
298125
298150
298175
298200
298225
298250
298300*
298350*
298400*
298450*
298500*
Current
Rating
(A)
40
60
80
100
125
150
175
200
225
250
300
350
400
450
500
Typ. Voltage
Drop at
Rated Current
(mV)
132
119
87
87
80
92
86
83
82
82
74**
68**
64**
60**
58**
Min
300-500
Max
Min
Max
4 hrs
4 hrs
120 s
1s
0.3 s
0.1 s
1800 s
15 s
5s
1s
1s
0.3 s
15 s
5s
Interrupting Rating: 2000A @ 32 VDC
Voltage Rating: 32 VDC
Ambient Temp: -40˚C to + 125˚C
MEGA Fuse Series Temperature Rerating Curve
120
115
Rerating Factor (% Rated Current)
MEGA FUSE TABLE
40-250
% of
Rating
75
100
135
200
350
600
110
105
100
95
90
85
80
75
70
-40
-20
0
20
40
60
80
100
120
140
Ambient Temperature (°C)
* Parts with asterik are short circuit protectors only.
** Voltage Drop measurements for short circuit protectors are at
75% of rated current
17
17
MINI® 42 Fuse
The MINI 42 volt fuse rated at 58 volts DC was designed for use in 42volt systems yet maintains the same performance characteristics and
terminal footprint as the standard Mini fuse. Because there are severe
dangers involved with using a fuse designed for a 12-volt system in a
42-volt system, the unique rejection feature prevents fuses with a lower
voltage rating (i.e. Standard MINI fuse rated at 32 volts DC) from being
inserted into the circuit. In order for the rejection feature to function as
intended, fuse box designers need to follow the recommended mating
cavity guidelines in this section.
RECOMMENDED MATING CAVITY
9.1
2.6
TIME-CURRENT CHARACTERISTICS
DIMENSIONS (in mm)
% of
Rating
0.76
110
135
200
350
600
8.8
7.5
3.55
3.3
MIN
1.78
2.80
±0.1
Opening Time
Minimum
Maximum
100 h
.75 s
.15 s
.080 s
.030 s
—
600 s
5s
.500 s
.100 s
INTERRUPTING RATINGS:
1000 amperes @ 58 VDC
8.1 REF
0.825
±.035
BLADE CENTERS
10.9
ENVIRONMENTAL SPECIFICATIONS:
Operating Temperature Range: -40˚C to +125˚C
MINI 42 FUSE TABLE
MINI Fuse Temperature Rerating Curve
Current
Rating
(A)
Housing
Color
997002
997003
997004
997005
99707.5
997010
997015
997020
997025
997030
2
3
4
5
7.5
10
15
20
25
30
Grey
Violet
Pink
Tan
Brown
Red
Blue
Yellow
Clear
Green
171
153
121
129
135
108
98
96
86
87
120
115
Rerating Factor (% Rated Current)
Part
Number
Typ. Voltage
Drop at
Rated Current
(mV)
110
105
100
95
90
85
80
75
70
-40
-20
0
20
40
60
80
100
120
140
Ambient Temperature (˚C)
18
Visit our web site at www.littelfuse.com
MAXI® 42 Fuse
The MAXI 42 volt fuse rated at 58 volts DC was designed for use in
42-volt systems yet maintains the same performance characteristics
and terminal footprint as the standard Maxi fuse. Because there are
severe dangers involved with using a fuse designed for a 12-volt system in a 42-volt system, the unique rejection feature prevents fuses
with a lower voltage rating (i.e. Standard Maxi fuse rated at 32 volts
DC) from being inserted into the circuit. In order for the rejection feature to function as intended, fuse box designers need to follow the
recommended mating cavity guidelines in this section.
RECOMMENDED MATING CAVITY
4.5
9.5
(Top View)
20
31 MIN.
(Side View)
13.4
Time-Current Characteristics
% of
Rating
DIMENSIONS (in mm)
135
29.21
200
350
21.60
22.15
MAX.
600
3.3
Opening Time Max/Min (s)
20A 25A 30A 35A 40A 50A 60A 70A
1800 1800 1800 1800 1800 1800 1800 1800
60
60
60
60
60
60
60
60
20
30
30
40
40
50
60
60
4
6
6
8
8
10
15
4
2
4
4
5
5
6
7
2
0.7
1
1
1.4
1.4
1.7
2
0.20
1
1
1
1
1
1
1
1
0.15 0.20 0.20 0.20 0.20 0.20 0.20
.1
80A
1800
60
60
4
2
0.20
1
.1
INTERRUPTING RATINGS:
12.70±0.38
1000 amperes @ 58 VDC
0.825±.035
ENVIRONMENTAL SPECIFICATIONS:
Operating Temperature Range: -40˚C to +125˚C
8.00
8.51
MAXI Fuse Temperature Rerating Curve
17.37
Part
Number
Current
Rating
(A)
Housing
Color
Typ. Voltage
Drop at
Rated Current
(mV)
999020
999025
999030
999035
999040
999050
999060
999070
999080
20
25
30
35
40
50
60
70
80
Yellow
Gray
Green
Brown
Orange
Red
Blue
Tan
Clear
76
75
77
75
75
70
66
61
62
Rerating Factor (% Rated Current)
120
MAXI 42 FUSE TABLE
115
110
105
100
95
90
85
80
75
70
-40
-20
0
20
40
60
80
100
120
140
Ambient Temperature (˚C)
19
JCASE® 42 Fuse
The JCASE 42 volt fuse rated at 58 volts DC was designed for use in
42-volt systems yet maintains the same performance characteristics
and terminal footprint as the standard JCASE fuse. Because there
are severe dangers involved with using a fuse designed for a 12-volt
system in a 42-volt system, the unique rejection feature prevents
fuses with a lower voltage rating (i.e. Standard JCASE fuse rated at
32 volts DC) from being inserted into the circuit. In order for the
rejection feature to function as intended, fuse box designers need to
follow the recommended mating cavity guidelines in this section.
RECOMMENDED MATING CAVITY
6.30
12.6min.
17.8max.
9.50
12.4min.
10.3min.
TIME CURRENT CHARACTERISTICS:
DIMENSIONS (in mm)
12.00
14.10
Opening Time
% of
Rating
100
135
200
350
600
Min
100 hrs
60 s
4.00 s
0.20 s
0.04 s
Max
1800 s
60.0 s
7.0 s
1.00 s
24.4
27.0
18.7
10.00
INTERRUPTING RATINGS:
1000 amperes @ 58 VDC
ENVIRONMENTAL SPECIFICATIONS:
4.40
10.10
12.10
10.00
Operating Temperature Range: -40˚C to +125˚C
5.50
6.75
JCASE Fuse Series Temperature Rerating Curve
110
Part
Number
Current
Rating
(A)
Housing
Color
995020
995025
995030
995040
995050
995060
20
25
30
40
50
60
Blue
White
Pink
Green
Red
Yellow
Typ. Voltage
Drop at
Rated Current
(mV)
106
101
91
87
88
87
Rerating Factor (% Rated Current)
1.00
JCASE 42 FUSE TABLE
105
100
95
90
85
-40 -30 -20 -10
0 10
20 30 40 50 60 70 80 90 100 110 120
Ambient Temperature (°C)
20
Visit our web site at www.littelfuse.com
PAL™ Fuses
Commonly found on many Japanese OEM applications. PAL Fuses
are available in current ratings up to 120 amperes, with either female
or bolt-on terminals.
Part
Number
Current Rating
(A)
Housing
Color
293020
293030
293040
293050
293060
20
30
40
50
60
Light Blue
Pink
Green
Red
Yellow
293830
293840
30
40
Pink
Green
294030
294040
294050
294060
294070
294080
294100
294120
30
40
50
60
70
80
100
120
Pink
Green
Red
Yellow
Brown
Black
Blue
White
295030
295040
295050
295060
295070
295080
295100
295120
30
40
50
60
70
80
100
120
Pink
Green
Red
Yellow
Brown
Black
Blue
White
283030
283040
283050
283060
283070
283080
283100
283120
30
40
50
60
70
80
100
120
Pink
Green
Red
Yellow
Brown
Black
Blue
White
293545
293565
293575
45
65
75
Red
Black
Grey
293525
293530
25
30
Brown
Green
(standard)
21
EV Fuses
Littelfuse sets high standards of accuracy, consistent quality, reliability,
and predictable performance for fuse design development. By using
advanced metallurgical, polymer, and materials research, as well as
mathematical modeling and computerized statistical analysis, Littelfuse
engineers have developed a new EV fuse series designed to protect
high voltage applications on electric vehicles such as air conditioning
compressors, electric heaters and power steering, all of which are
mechanically driven in a traditional vehicle design.
EV use is expected to grow in the near future due to environmental
concerns and zero emission requirements. As EV development continues, the Littelfuse EV design team will design state-of-the-art EV fuses
to protect all the new electrical applications in electric vehicles.
EV49 Series
Littelfuse offers a variety of DC voltage fuses to meet EV applications
(150-1000 VDC) as well as an array of fuseholders.
Interrupting Rating: 200,000 amperes
Ampere Range: 1 - 1,000 amperes
Very Fast Acting: EV fuses may be used wherever extremely
fast-acting, current limiting fuses with no time delay are required.
KLKD Series
EV45 Series
CCEV Series
EV45 Series
L60030C-1CEV1
Holder
22
Visit our web site at www.littelfuse.com
Automotive Electronics
Littelfuse Electronics Products
Littelfuse offers an extensive line of circuit protection products for
automotive electronics applications. With the growing number of onboard electronics, automotive designers have more circuits to protect accessories such as radios, cassette and CD players, cellular phones
and global positioning system (GPS) products, as well as basic electronic functions such as power seats, power windows and
climate control.
Littelfuse’s broad selection of electronics devices address the changing needs of electronics applications. In addition to traditional glass
and ceramic fuses, Littelfuse provides several low-profile surface
mount designs which facilitate automated installation. To solve space
limitations in electronics applications, Littelfuse offers 1206 and 0603
chip sizes produced with its breakthrough thin film processing techniques which enable precise control of electrical characteristics in
compact packages. Littelfuse Slo-Blo® Fuses feature time delay to
accommodate the inrush currents of electric motor control circuits, and
very fast acting performance characteristics are also available.
For more detailed information, please contact your Littelfuse sales
representative for a copy of the Littelfuse Electronic Designer’s Guide
which contains all the necessary specifications for Littelfuse electronics products or visit our website at www.littelfuse.com.
30R Series
Radial Lead
Vmax
30VDC
Ampere Range
0.90 – 9.0A
®
®
60R Series
Radial Lead
Vmax
60VDC
Ampere Range
0.10 – 3.75A
®
®
Surface Mount Fuses
NEW
SlimLine™ Lead-Free 1206
Very Fast-Acting Thin-Film Fuse 466 Series
Over Current Protection Products
Resettable PTCs
1206L Series
.66
(.026")
3.15 mm (.124)
Surface Mount
Ihold
(A)
0.20
0.25
0.35
0.50
0.75
1.10
1.50
Vmax
(VDC)
15.0
15.0
6.0
6.0
6.0
6.0
6.0
H
1.52
(.060")
3.18
(.125")
®
.56
(.022")
0.58 mm
(.023)
SlimLine™ 1206
®
®
Very Fast-Acting Thin-Film Fuse 433 Series
VOLTAGE RANGE:32 – 125V
AMPERE RANGE: 0.125 – 3.0A
INTERRUPTING
0.125 – .375A
RATINGS:
0.5 – 2A
2.5 – 3A
4 – 7A
4.47 mm (.176)
Surface Mount
Vmax
(VDC)
15.0
13.2
6.0
6.0
6.0
6.0
6.0
6.0
.58
(.023")
®
1.65 mm
(.064)
1812L Series
Ihold
(A)
0.50
0.75
1.10
1.25
1.50
1.60
2.00
2.60
VOLTAGE RANGE:24-125V
AMPERE RANGE: 0.125 – 7.0A
INTERRUPTING
0.125 – .375A 50A @ 125VAC/VDC
RATINGS:
0.5 – 2A
50A @ 63VAC/VDC
2.5 – 3A
50A @ 32VAC/VDC
4 – 7A
35A @ 24VAC/VDC
260
50A @
50A @
50A @
35A @
125VAC/VDC
63VAC/VDC
32VAC/VDC
24VAC/VDC
3.15 mm
(.124)
.66
(.026")
1.52
(.060")
0.66 mm
(.026)
.58
(.023")
®
®
P
3.18
(.125")
®
.56
(.022")
®
23
Automotive Electronics
Over Current Protection Products (Cont.)
Overvoltage Suppression Products
Surface Mount Fuses
PulseGuard® Polymeric ESD SuppressorsPGB Series
1206
PGB1010603
Slo-Blo® Thin-Film Fuse 430 Series
VOLTAGE RANGE:32 – 63V
AMPERE RANGE: 0.5 – 3.0A
INTERRUPTING
0.5 – 1.5A
RATINGS:
2A
3A
OPERATING VOLTAGE: 0-24VDC
PEAK CURRENT:
[email protected]
CAPACITANCE:
[email protected]
LEAKAGE CURRENT: <1.0nA
OFFSTATE
10MΩ
RESISTANCE:
CLAMPING:
150V,[email protected]
LINES PROTECTED:
50A @ 63VAC/VDC
35A @ 63VAC/VDC
50A @ 32VAC/VDC
1.52
(.060")
1.14
(.045")
®
®
1-line
1.60
(0.063")
3.18 (.125")
NEW
0.457
(0.018")
0.81
(0.032")
SlimLine Lead-Free 0603
™
0.381
(0.015")
Very Fast-Acting Thin-Film Fuse 467 Series
PGB102ST23
VOLTAGE RANGE:32V
AMPERE RANGE: 0.25 – 5.0A
INTERRUPTING
0.25 – 1A
RATINGS:
1.25 – 5A
50A @ 32VAC/VDC
35A @ 32VAC/VDC
.305
(.012")
.787
(.031")
®
®
1.60
(.063")
.279
(.011")
OPERATING VOLTAGE: 0-24VDC
PEAK CURRENT:
[email protected]
CAPACITANCE:
[email protected]
LEAKAGE CURRENT: <1.0nA
OFFSTATE
10MΩ
RESISTANCE:
CLAMPING:
150V,[email protected]
LINES PROTECTED:
2-lines
2.24
(0.088")
0.66
(0.026")
SlimLine™ 0603
2.032
(0.080")
2.997
(0.118")
0.76
(.030")
Very Fast-Acting Thin-Film Fuse 434 Series
VOLTAGE RANGE:32V
AMPERE RANGE: 0.25 – 5.0A
INTERRUPTING
0.25 – 1A
RATINGS:
1.25 – 5A
PGB1040805
50A @ 32VAC/VDC
35A @ 32VAC/VDC
OPERATING VOLTAGE: 0-24VDC
PEAK CURRENT:
[email protected]
CAPACITANCE:
[email protected]
LEAKAGE CURRENT: <1.0nA
OFFSTATE
10MΩ
RESISTANCE:
CLAMPING:
150V,[email protected]
LINES PROTECTED:
.305
(.012")
.787
(.031")
1.60
(.063")
®
®
NEW
.279
(.011")
4-lines
1.27
(0.050")
SlimLine Lead-Free 0402
™
0.44
(0.037")
Very Fast-Acting Thin-Film Fuse 435 Series
0.41
(0.016")
+
+
2.03
(0.080")
0.66
( 026")
VOLTAGE RANGE:24V
AMPERE RANGE: 0.25 – 2.0A
INTERRUPTING
035A @ 24 VDC
RATINGS:
1.04
(.041")
.30
(.012")
.51
(.020")
®
24
®
Visit our web site at www.littelfuse.com
Automotive Electronics
Overvoltage Suppression Products (Cont.)
Metal Oxide Varistors (MOV’s)
MA Series
ML Series
OPERATING VOLTAGE: 4-264 VAC
13-365 VDC
PEAK CURRENT:
40-100A
PEAK ENERGY:
0.06-1.7J
MOUNT/FORM FACTOR: Axial Leaded
DISC SIZE:
3mm
OPERATING VOLTAGE: 2.5-104 VAC
3.5-120 VDC
PEAK CURRENT:
30-250A
LEAKAGE CURRENT: <5µA
PEAK ENERGY:
1-2.0J
LINES PROTECTED: 1
CAPACITANCE:
40-6000pF
PACKAGE SIZE:
0402-1210
RA Series
MLE Series
OPERATING VOLTAGE: 4-275 VAC
5.5-364 VDC
PEAK CURRENT:
150-6,500A
PEAK ENERGY:
0.4-140J
MOUNT/FORM FACTOR: Packaged
DISC SIZE:
8, 6, 22mm
®
®
MLN Series
ZA Series
OPERATING VOLTAGE: 4-460 VAC
5.5-615 VDC
PEAK CURRENT:
50-6,500A
PEAK ENERGY:
0.1-52J
MOUNT/FORM FACTOR: Radial Leaded
DISC SIZE:
5, 7, 10, 14, 20mm
®
OPERATING VOLTAGE: 0-18 VDC
PEAK CURRENT:
20A
LEAKAGE CURRENT: <10µA
PEAK ENERGY:
0.5J
LINES PROTECTED: 1
CAPACITANCE:
40-1700pF
PACKAGE SIZE:
0402-1206
D
V
OPERATING VOLTAGE: 5.5-18 VDC
PEAK CURRENT:
20A
LEAKAGE CURRENT: <2µA
PEAK ENERGY:
0.05J
LINES PROTECTED: 4
CAPACITANCE:
45-430pF
PACKAGE SIZE:
1206
E
MULTILAYER VARISTORS (MLV’s)
MHS Series
OPERATING VOLTAGE: 0 – 42 VDC
PEAK CURRENT:
LEAKAGE CURRENT:
PEAK ENERGY:
LINES PROTECTED:
CAPACITANCE:
PACKAGE SIZE:
N/A
<5µA
N/A
1
3, 12pF
0402, 0603
AUML Series
OPERATING VOLTAGE: 18 VDC
PEAK CURRENT:
N/A
LEAKAGE CURRENT:
PEAK ENERGY:
N/A
LINES PROTECTED: 1
CAPACITANCE:
1206-2220
PACKAGE SIZE:
CH Series
OPERATING VOLTAGE: 14-275 VAC
18-369 VDC
PEAK CURRENT:
250-500A
PEAK ENERGY:
1-23J
MOUNT/FORM FACTOR: Surface Mount
DISC SIZE:
N/A
®
25
Automotive Electronics
Overvoltage Suppression Products (Cont.)
Silicon Protection Arrays
TVS Diodes
NEW
SPO5X Series
Through-hole TVS Diode
TVS Avalanche Diode
SA, P4KE, P6KE, 1.5KE, 5KP, 15KP, FSLD, SLD Series
OPERATING VOLTAGE: 0-5.5 VDC
LEAKAGE CURRENT: <10µA
LINES PROTECTED:
2,3,4,5,6
CAPACITANCE:
30pF
PACKAGE SIZE:
SC70, SOT23, SOT143,
TSSOP-8, MSOP-8
MAX OPERATING VOLTAGE:
5.0 to 380.0
PEAK PULSE CURRENT:
N/A
FORM FACTOR:
Axial leaded
PEAK PULSE POWER 400W to 5kW
®
Surface Mount TVS Diode
SP72X Series
OPERATING VOLTAGE: 0-30VDC
LEAKAGE CURRENT: <20µA
LINES PROTECTED:
4,6,14
CAPACITANCE:
3-5pF
AGE SIZE:
DIP, SOIC, SOT23
NEW
P4SMA, SMAJ, 1.5SMC, SMCJ, SMBJ,
P6SMBJ, 1KSMBJ Series
MAX OPERATING VOLTAGE:
5.0 to 188.0
PEAK PULSE CURRENT:
N/A
FORM FACTOR:
DO 214 AA
PEAK PULSE POWER 600W to 1kW
®
SPUSB1 Series
NEW
Gas Discharge Tubes
Upstream USB Port Terminator with
ESD suppression and EMI Filtering
High Performance Gas Plasma TRIGGER
OPERATING VOLTAGE: 5.5 VDC
LEAKAGE CURRENT: <1µA
LINES PROTECTED:
3
CAPACITANCE:
47pF
AGE SIZE:
SC70-6
PEAK PULSE CURRENT: 400A
FORM FACTOR:
2 terminal axial & SMT
NOM. DC BREAKOVER
VOLTAGE
600-1000
26
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NEW
XT Series
Fuseholders
Customized “Quick Fix” Solutions
For those times when additional circuit protection requirements
are presented by unforeseen situations and the design is frozen,
fuse block space is limited, or the vehicles are already on the
road, Littelfuse can provide customized “Quick Fix” solutions, specially designed for your specific application when standard products cannot solve the problem individually.
testing, manufacturing and packaging capabilities to meet all the
circuit protection challenges faced by OEMs. Our ability to
respond to emergency situations with quick turnaround times and
high production volumes is unrivaled in the industry, and all our
custom products conform to the same rigid quality, performance
and safety standards applied to Littelfuse’s stock products.
Littelfuse has the expertise and resources to develop any solution
you need, using fuses, fuseholders, terminals and other Littelfuse
products creatively and effectively. We have the design, quality
For more information on customized “Quick Fix” solutions, contact
your Littelfuse representative.
MINI® Blade Fuse
Splashproof In-Line Fuseholder
The protective cover of the Splashproof Fuseholder permits use of
MINI® Fuses in harsh environments.
Specifications
Body: Black Alcryn Thermoplastic
Cover: Black Alcryn Thermoplastic
Ambient Temp.: -10˚C to +80˚C
Part
Number
FHM001
FHM002
Description
#14AWG (2.0mm2) stranded black
wire with terminals rated for 20A
#12AWG (3.0mm2) stranded orange
wire with terminals rated for 30A
MINI® Blade Fuse
Printed Circuit Board Mount
Designed to hold the MINI® Fuse, the Printed Circuit Board Mount is
an economical alternative for PCB circuit protection in a variety of
applications.
Specifications
Terminals: Copper Alloy/Tin plated
Body: Black Thermoplastic (UL94V0)
Electrical: Recognized under the Components Program of
Underwriters Laboratories for 15A and certified by CSA for 10A (32V)
Ambient Temp.: -40˚C to +85˚C
Mounting: Intended for soldering directly to 0.062 (1.57mm) printed
circuit board
Part
Number
153007
153008
153009
Description
Horizontal Mount
Vertical Mount Single Unit or Stackable
Unit (RH)
Vertical Mount Stackable Unit
27
Fuseholders
MAXI™ Fuse
Splashproof Fuseholder
Ideal for high amperage MAXI™ Fuse applications where a protective cover is required for harsh under-the-hood environments.
Specifications
Terminals: Copper Alloy/Tin Plated with
integral stainless steel reinforcing spring
Wire Seal: Silicon Rubber
Body: Heat Stabilized Thermoplastic
Cover: Transparent Thermoplastic with integral silicon seal
Rated: 80A (Dependent on application - contact Littelfuse)
Ambient Temp.: -40˚C to +105˚C
Maxi Fuse Splashproof Holder for 20-70 Amp
Quantity
Required
1
1
2
2
Part Number
1520007Z
1520004Z
1520005Z
1520006Z
868-095
868-096
913-064
913-064-001
913-068
913-068-001
913-087
913-087-001
Description
Cover with Intergal seal
Body with Mounting Tabs (one tab is slotted)
Body with Mounting Tabs
Body without Mounting Tabs
Blue Wire Seal for 1.5-4mm2 (14-12AWG) Wire
Gray Wire Seal for 4-10mm2 (10-8AWG) Wire
Single terminal 1.5-4mm2 (14-12AWG) Wire
Reeled terminals 1.5-4mm2 (14-12AWG) Wire
Single terminal 4-6mm2 (10AWG) Wire
Reeled terminals 4-6mm2 (10AWG) Wire
Single terminal 6-10mm2 (8AWG) Wire
Reeled terminals 6-10mm2 (8AWG) Wire
Maxi Fuse Splashproof Holder for 80 Amp
Quantity
Required
1
1
2
2
Part Number
1520007Z
1520008Z
1520009Z
868-096
913-088
913-088-001
Description
Cover with Intergal seal
Body with Mounting Tabs, 80 Amp
Body without Mounting Tabs, 80 Amp
Gray Wire Seal for 4-10mm2 (10-8AWG) Wire
Single terminal 8mm2 (8AWG) Wire
Reeled terminals 8mm2 (8AWG) Wire
*It is recommended that cross linked polyethelene (GLX) insulated wire be used, as described in SAE J1128 (Type, FLY in
DIN 76722) or equivalent.
28
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Fuseholders
MAXI™ Fuse In-Line Fuseholder
The In-Line Fuseholder provides an efficient, simple installation
method for MAXI™ Fuse applications.
Specifications
Terminal: Copper Alloy
Body: Black Thermoplastic (UL94HB)
Cover: Translucent Thermoplastic
Ambient Temp.: -10˚C to +80˚C
Maximum number of fuseblocks tied together is two for all ratings, up
to and including 50A.
Quantity
Required
Part
Number
1
152001
152900
913-653
1
2
913-654
2
913-550
Description
Fuseholder-Rated at 60A
Cover
Ring tongue terminal for 2.5-6mm2
(12-10AWG) wire*
Ring tongue terminal for 5-10mm2
(10-8 AWG) wire*
M5 x 8 Screw per DIN 7985-4.8
*It is recommended that cross linked polyethelene (GXL) insulated
wire be used, as described in SAE J1128 (Type, FLY in DIN 76722) or
equivalent.
MAXI™ Fuse In-Line Fuseholder
With Protective Cap
Supplied with two 6” leads 6 gauge wire for up to 60 amp
MAXI™ Fuse applications,
this In-Line Fuseholder also provides
a protective cover for harsh under-the-hood
environments. Mounting hole also permits
easy bulkhead installation.
Part Number: MAH 1
ATO® Blade Fuse
Splashproof In-Line Fuseholder
The Splashproof Fuseholder provides a protective
cover to permit the use of ATO® Fuses in harsh environments.
Specifications
Body: Black Alcryn Thermoplastic
Cover: Black Alcryn Thermoplastic
Ambient Temp.: -10˚C to +80˚C
Part
Number
FHAC001
FHAC002
Description
#16AWG (1.0mm2 ) stranded black wire with
terminals rated for 20A
#12AWG (3.0mm2 ) stranded orange wire with
terminals rated for 30A
29
Fuseholders
ATO® Blade Fuse
In-Line Panel Mount Fuseholder
The In-Line Panel Mount Fuseholder provides an easy and quick
mounting alternative when specifying ATO® Fuses.
Specifications
Body: Black Heat Stabilized Thermoplastic (UL94V2)
Terminals: Brass, Tin Plated - Snap lock into body
Ambient Temp.: -40˚C to +85˚C
Mounting: Capable of snap mounting into panel from rear.
Fuseholder interlocks for multiple mountings.
Part Number
Assembled with Assembled with
Fuse
8” Wire Loop8” Wire Loop- Amperage
Unassembled
No Fuse
With Fuse
Rating
155320U
155300
155303A
3
Terminals for
#14AWG (2.0mm2 )
155304A
4
#14AWG (2.0mm2 ) Terminals rated to
155305A
5
stranded wire
20A
15537.5A
7.5
marked “14”
155310A
10
155315A
15
155320A
20
155430U
155400
155425A
25
Terminals for
#10AWG (5.0mm2 )
155430A
30
#10AWG (5.0mm2 ) Terminals rated
stranded wire
to 30A
marked “10”
ATO® Blade Fuse
In-Line Molded Fuseholder
The Molded Fuseholder is a versatile fuseholder for in-line applications.
Specifications
Body: Black Thermoplastic
Wire: PVC
Ambient Temp.: -10˚C to +80˚C
Part
Number
FHA 001
Description
20A Max-No
fuse supplied
FHA 003
With 3A fuse
FHA 004
With 4A fuse
FHA 005
With 5A fuse
FHA 07.5
With 7.5A fuse
FHA 010
With 10A fuse
FHA 015
With 15A fuse
FHA 020
With 20A fuse
#16 AWG (1.0mm2 )
Stranded Black Wire
Part
Number
Description
FHA 002
30A Max-No
fuse supplied
FHA 025
With 25A fuse
FHA 030
With 30A fuse
#12 AWG (3.0mm2 )
Stranded Orange Wire
ATO® Blade Fuse Terminal
The ATO® Blade Fuse Terminal is a tin plated terminal for ATO
Fuse mounting on printed circuit boards.
Specifications
Terminal: Brass/Tin Plated
• Suitable for current levels up to 15A
• First time fuse insertion force may approach 40lbs. (180N)
Part Number: 100057
30
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Fuseholders
MEGA® Fuse Fuseholders
Specifications
Electrical: Use with MEGA Fuses from 40 to 500 amps
Part No.: 2981000 Series Single holder
2982000 Series Dual holders
2983000 Series Triple holders
Body: Glass Filled thermoplastic
Body Color: Black
Cover with Tether: Glass Filled Thermoplastic
Cover Color: Black
Ambient Temp.: -40˚C to +125˚C
Fuse Mounting: M8 Threaded Stud and Hex Nuts or
M6 Threaded Hex Nuts
Cover Opening Positions: - 6 total - location optional
Side Stackable Feature
Holder Mounting Dimensions: Optional
Torque Requirements: M8 Nut 12-18 Newton meters
M6 Nut 8-14 Newton meters
2981000 Series*
87.2
LITTELFUSE
MEGA
10.2
101.6
2982000 Series*
6.35 DIA
87.2
LITTELFUSE
MEGA
38.2
LITTELFUSE
MEGA
10.2
101.6
6.35 DIA
MIDI Fuse Fuseholders
®
Specifications
Electrical: Use with MIDI Fuses from 30 to 200 amps
Part No.: 498900 Series
Body: Glass Filled Thermoplastic
Body Color: Black
Cover with Tether: Glass Filled Thermoplastic
Cover Color: Black
Ambient Temp.: -40˚C to +125˚C
Fuse Mounting: M5 Threaded Stud and Hex Nuts
Cover Opening Positions: Location Optional - 6 total
Side Stackable Feature
Holder Mounting Dimensions: Available with or without mounting tabs
Torque Requirements: M5 Nut 4-5 Newton meters
498900 Series*
4.8
65.8
51.4
41.0
*Holder Part No. w/cover dependent on part locations/patterns.
31
Special Products
ATO™ Resistor
Part Number: 240100 Series
ATO™ Diode
Part Number: 240103
Specifications
Operating Temp.: -20˚C to +85˚C
Resistor Value: Optional
Power Rating: 1/4 W Max
Body Material: Thermoplastic
Term. Material: C.R.S. (Ni/Zn Plated)
Term. Retention: 25 N
Specifications
Operating Temp.: -40˚C to +85˚C
Diode Rating: 1.0 A
Max P.I.V.: Optional
Body Material: Thermoplastic
Term. Material: C.R.S. (Ni/Zn Plated)
Term. Retention: 25 N
MINI™ Resistor
Part Number: 240100 Series
Specifications
Operating Temp.: -40˚C to +85˚C
Resistor Value: Optional
Power Rating: 1/4 Max
Body Material: Thermoplastic
Term. Material: C.R.S. (Ni/Zn Plated)
Term. Retention: 25 N
MINI™ Diode
Part Number: 240113
Specifications
Operating Temp.: -40˚C to +85˚C
Diode Rating: 1.0 A
Max P.I.V.: Optional
Body Material: Thermoplastic
Term. Material: C.R.S. (Ni/Zn Plated)
Term. Retention: 25 N
ATO™ Shunt
Part Number: 240094
Specifications
Operating Temp.: -40˚C to +125˚C
Maximum Continuous Load Rating: 35 A
Body Material: Thermoplastic (UL 94V0 Rated)
Term. Material: Brass Tin Plated
MINI™ Shunt
Part Number: 297900
Specifications
Operating Temp.: -40˚C to +125˚C
Maximum Continuous Load Rating: 20 A
Body Material: Thermoplastic (UL 94V0 Rated)
Term. Material: Zinc Silver Plated
JCASE™ Shunt
Part Number: 495900
32
Specifications
Operating Temp.: -40˚C to +125˚C
Maximum Continuous Load Rating: 50 A
Body Material: Nylon
Term. Material: Copper
Visit our web site at www.littelfuse.com
Fuse Pullers
Littelfuse offers a selection of fuse pullers for easy removal and
replacement of ATO®, MINI®, and MAXI™ Blade Fuses.
ATO and MINI Fuse Puller
Specifications
Material: Polyamide
Color: White
Part Numbers: 097021
32.89
MINI Fuse Puller
Specifications
Material: Polyamide
Color: White
Part Numbers: 097024
8.6
7.87 10.82
JCASE and MINI Fuse Puller
Specifications
Material: Polyamide
Color: White
Part Numbers: 097053
38.1
MAXI Fuse Puller
Specifications
Material: Polyamide
Color: Green or White
Part Numbers: 097026 Green
12.4
097027 White
18.8
28.5
Fuse Tester and Puller
The Tester/Puller conveniently and
easily tests ATO® and MINI® Blade
Fuses either in or out of the fuse
block. Indicator light on tester glows
bright green when fuse is good.
Fuse puller end allows for easy fuse
removal and replacement. 24V maximum.
10.7
14.0
28.5
20.0
Littelfuse
®
11.9
55.0
Part Number: 097019
Tri-Puller™ Fuse Puller
Tri-Puller™ Fuse Puller allows for
easy fuse removal and replacement
of Glass Fuses, Ceramic Type
Fuses, ATO® and MINI® Blade
Fuses.
79.7
13.8
BLADE
GLASS
Part Number: 097023
33
Catalogs & Support Materials
Catalogs
Littelfuse, Inc. produces a vast array of products serving numerous
markets including electronics, aftermarket and power fuses. Catalogs
for Littelfuse products are available upon your request. Please contact
you local sales representative for copies.
Technical Support Books
Littelfuse, Inc. has published Fuses for Automotive Applications to
share knowledge that we possess in a market with ever increasing
demands for reliability and quality.
34
Visit our web site at www.littelfuse.com
A History of Littelfuse Automotive Firsts
For more than 75 years, Littelfuse has been the circuit protection manufacturer to achieve the automotive industry’s most significant accomplishments, beginning in 1927 by inventing electronic circuit protection
technology with the first small fast-acting protective fuse.
1930 - Automotive fuse introduced by Littelfuse
1950 - Littelfuse develops design of industry’s first centralized
under dash fuseblock
1976 - ATO® Blade Fuse revolutionizes automotive
circuit protection
1986 - U.S. auto industry selects the MAXI™ Fuse to replace the
commonly used high amp fusible wire and fusible links in
under-the-hood electrical harnesses
1987 - Littelfuse expands high amp coverage with
reliable new line of PAL™ Auto Links for complete
Japanese coverage
1989 - MINI® Fuse introduced as compact version of ATO® Fuse to
address the proliferation of circuits being added to new
car designs
1991 - High amp protection MEGA® Fuse introduced as the first
OE and Aftermarket fuse rated up to 250 amps
1993 - Littelfuse becomes the first circuit protection
manufacturer to receive ISO 9000 certification
1994 - MIDI® compact bolt-down automotive fuse introduced for
European high amp applications
1996 - Littelfuse is first circuit protection manufacturer to
receive QS 9000 certification
1997 - JCASE® Fuse introduced as a high current, space saving,
female terminated fuse
1997 - Littelfuse celebrates 70 years of quality
circuit protection innovation
2001 - Cable Pro® Fuse introduced as an inline high current fuse to
replace fusible links in underhood applications
2004- Low Profile JCASE Fuse introduced as a compact version of
the JCASE Fuse
35
World Headquarters
Littelfuse, Inc.
800 East Northwest Highway
Des Plaines, IL 60016
Phone: (847) 824-1188
http://www.littelfuse.com
Research and
Manufacturing Facilities
•
•
•
•
•
•
•
•
•
Des Plaines, Illinois USA
Piedras Negras, Mexico
Suzhou, China
Seoul, Korea
Irving Texas, USA
Lipa City, Philippines
Matamoros, Mexico
Dundalk, Ireland
Swindon, United Kingdom
Sales, Distribution and
Engineering Facilities
North America
• Des Plaines, Illinois USA
Phone: (800) 999-9445
(847) 824-1188
Fax:
(847) 391-0459
• Irving, Texas, USA
Phone: (972) 580-7777
Fax:
(972) 550-1309
• Piedras Negras, Mexico
Phone: (U.S. area code)
(830) 758-1925/1569
Fax:
(+52)-8-782-7315
• Brownsville, Texas, USA
Central and South America
• Sao Paulo, Brazil
Phone: (+55) 11-3977-0909
Fax:
(+55) 11-3976-6690
Asia/Pacific
• Hong Kong, China
Phone: (+85) 22-810-5099
Fax:
(+85) 22-810-5500
• Singapore
Phone: (+65) 6885-9111
Fax:
(+65) 6885-9113
• Seoul, Korea
Phone: (+82) 2-463-6073
Fax:
(+82) 2-463-3273
• Yokohama, Japan
Phone: (+81) 45-478-1088
Fax:
(+81) 45-478-1089
Europe
• Utrecht, The Netherlands
Phone: (+31) 30-299-9900
Fax:
(+31) 30-299-9800
• Munich, Germany
Phone: (+49) 89-5527-6600
Fax:
(+49) 89-5527-6699
Littelfuse, Inc.
800 East Northwest Highway
Des Plaines, IL 60016
Phone: (847) 824-1188
Fax
(847) 803-5364
Form No. OE101-D
Printed in U.S.A.
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