LK-F relays

LK-F
Low Profile (10 mm)
TV-5 and TV-8 Compatible
Flat Power Relay
• TV standards compatible: TV-5 and
TV-8
• TV-5 type: 78 A inrush current and
switching possible at 5 A rated current.
• TV-8 type: 118 A inrush current and
switching possible at 8 A rated current.
• Line up includes silent type
Approx. 10 dB less sound pressure than
LK-S relay.
When operate
30
Quantity
LK-F relay (silent)
LK-S relay
• High sensitivity: 250mW
Ideal for device power reduction
• 0.7 mm .028 inch stand off height
0.7
.028
mm inch
• Conforms to various safety
standards
UL, C-UL, TÜV and SEMKO
TYPICAL APPLICATIONS
20
• Flat-panel TVs
• Audio visual equipment
• Other slim profile devices
10
FEATURES
LK-F RELAYS
0
30 35 40 45 50 55 60 65 70 75 80 85
Sound pressure, dB
• Low profile (10 mm height)
Height reduced 60% compared with
previous product*.
When release
30
LK-F relay (silent)
LK-S relay
Previous product*
(including stand off)
25 mm
.984 inch
Quantity
Low profile LK-F
10 mm .394 inch
20
(LK-S)
10
*Previous product: LK-S relay
0
25 30 35 40 45 50 55 60 65 70 75 80
• Nominal switching capacity: 5A,
8A 277V AC
Sound pressure, dB
ORDERING INFORMATION
LKF
1a
M
1
2
V
1
5
Contact arrangement
1a: 1 Form A
Nominal operating power
M: 250mW
Operation noise
Nil: Standard type
Q: Silent type
Coil voltage (DC)
5, 9, 12, 24V
TV standard
5: TV-5
8: TV-8
Note: UL/C-UL, T†V, SEMKO approved type is standard.
ds_61B13_0007_en_lkf: 310309J
1
LK-F
TYPES
Part No.
Contact
arrangement
Nominal coil
voltage
TV-5 type
5V DC
1 Form A
TV-8 type
Standard type
Silent type
Standard type
Silent type
LKF1aM-5V-1-5
LKF1aMQ-5V-1-5
LKF1aM-5V-1-8
LKF1aMQ-5V-1-8
9V DC
LKF1aM-9V-1-5
LKF1aMQ-9V-1-5
LKF1aM-9V-1-8
LKF1aMQ-9V-1-8
12V DC
LKF1aM-12V-1-5
LKF1aMQ-12V-1-5
LKF1aM-12V-1-8
LKF1aMQ-12V-1-8
24V DC
LKF1aM-24V-1-5
LKF1aMQ-24V-1-5
LKF1aM-24V-1-8
LKF1aMQ-24V-1-8
Standard packing: Tube: 50 pcs.; Case: 500 pcs.
*Operation noise standard type is available, please contact us.
RATING
1. Coil data
Nominal coil
voltage
Pick-up voltage (at 20°C 68°F)
(JIS C 5442* pulse drive.)
Standard type
Silent type
70%V or less
of nominal
voltage
(Initial)
80%V or less
of nominal
voltage
(Initial)
5V DC
9V DC
12V DC
24V DC
Drop-out voltage
(at 20°C 68°F)
Nominal operating
Coil resistance
current
[±10%] (at 20°C 68°F)
[±10%] (at 20°C 68°F)
50 mA
10%V or more of
nominal voltage
(Initial)
Nominal operating
power
Max. applied voltage
(at 20°C 68°F)
250mW
130%V of
nominal voltage
100Ω
27.8mA
324Ω
20.8mA
576Ω
10.4mA
2,304Ω
*JIS C 5442: JIS C 5442-1986 test method for miniature electromagnetic relays used for control applications.
2. Specifications
Characteristics
Item
Specifications
TV-5 type
TV-8 type
Arrangement
Contact
1 Form A
Contact resistance (Initial)
Max. 100 mΩ (By voltage drop 6 V DC 1A)
AgSnO2 type
Contact material
Nominal switching capacity (resistive load)
Contact carring power
Rating
5 A 277 V AC
277 V AC
5 A (AC)
8 A (AC)
100 mA 5 V DC
Min. switching capacity (Reference value)*1
Insulation resistance (Initial)
Breakdown voltage
(Initial)
Surge breakdown
voltage*2
1,000 Vrms for 1 min. (Detection current: 10 mA)
Between contact and coil
4,000 Vrms for 1 min. (Detection current: 10 mA)
Between contact and coil
Max. 45°C 113°F
(By resistive method,
nominal voltage applied to the coil;
contact carrying current:
8 A at 70°C 158°F.)
Max. 15 ms (nominal coil voltage, excluding contact bounce time)
Release time (at 20°C 68°F)
Max. 5 ms (nominal coil voltage, excluding contact bounce time) (without diode)
Mechanical
characteristics
Vibration resistance
Functional
Min. 200 m/s2 (Half-wave pulse of sine wave: 11 ms; detection time: 10 μs.)
Destructive
Min. 1,000 m/s2 (Half-wave pulse of sine wave: 6 ms.)
Functional
10 to 55 Hz at double amplitude of 1.5 mm (Detection time: 10 μs.)
Destructive
10 to 55 Hz at double amplitude of 1.5 mm
Min. 106 (at 180 cpm)
Mechanical
Electrical
Conditions for operation, transport and storage*3
Max. operating speed
Unit weight
10,000 V (initial)
Max. 45°C 113°F
(By resistive method,
nominal voltage applied to the coil;
contact carrying current:
5 A at 70°C 158°F.)
Operate time (at 20°C 68°F)
Shock resistance
Conditions
Min. 1,000MΩ (at 500V DC)
Measurement at same location as “Breakdown voltage” section.
Between open contacts
Temperature rise (at 20°C 68°F)
Expected life
2,216 VA
Max. switching voltage
Max. switching current
Electrical
characteristics
8 A 277 V AC
1,385 VA
Min. 105 (at 20 cpm)
Min. 5×104 (at 20 cpm)
Ambient temperature: –40°C to +70°C –40°F to +158°F;
Humidity: 5 to 85% R.H. (Not freezing and condensing at low temperature);
Atmospheric pressure: 86 to 106 kPa
20 cpm (at nominal switching capacity)
Approx. 12 g .42 oz
Notes:
*1. This value can change due to the switching frequency, environmental conditions, and desired reliability level, therefore it is recommended to check this with the actual load.
*2. Wave is standard shock voltage of ±1.2×50μs according to JEC-212-1981
*3. The upper operation ambient temperature limit is the maximum temperature that can satisfy the coil temperature rise value.
Refer to 1. Usage, transport and storage conditions in NOTES.
Refer to “6. Usage, Storage and Transport Conditions” in AMBIENT ENVIRONMENT section in Relay Technical Information.
2
ds_61B13_0007_en_lkf: 310309J
LK-F
REFERENCE DATA
1. Max. switching power (AC resistive load)
2-(1). Coil temperature rise (TV-5 type)
2-(2). Coil temperature rise (TV-8 type)
Sample: LKF1aMQ-12V-1-5, 6 pcs.
Point measured: coil inside
Contact current: 0A, 5A
Sample: LKF1aMQ-12V-1-8, 6 pcs.
Point measured: coil inside
Contact current: 0A, 8A
TV-8 type
10
8
5
TV-5 type
1
30
Temperature rise, °C
Temperature rise, °C
Contact current, A
40
40
100
20°C 5A
20°C 0A
70°C 5A
70°C 0A
20
10
3-(1). Ambient temperature characteristics and
coil applied voltage (TV-5 type)
Allowable ambient temperatures
against % coil voltages
(max. inside the coil temperature
set as 115°C 239°F)
200
Carrying current: 5A
Pick-up voltage (hot start)
100
300
20
40
60
80
100
Ambient temperature, °C
4-(1). Electrical life test
(5A 277V AC, resistive load)
12V DC
0
60
140
Contact
welding
detection
and Miscontacting
detection
circuit
80
100
120
Coil applied voltage, %V
140
Allowable ambient temperatures
against % coil voltages
(max. inside the coil temperature
set as 115°C 239°F)
200
Carrying current: 8A
Pick-up voltage (hot start)
100
0
120
0
20
40
60
80
100
Ambient temperature, °C
120
Change of contact resistance
50
12
Circuit:
277V AC
100
120
Coil applied voltage, %V
Change of pick-up and drop-out voltage
Sample: LKF1aMQ-12V-1-5, 6 pcs.
Operation frequency: 20 times/min.
(ON/OFF = 1.5s: 1.5s)
Ambient temperature: 20°C 68°F
20
Pick-up voltage (cold start)
Pick-up and drop-out voltage, V
0
70°C 8A
70°C 0A
3-(2). Ambient temperature characteristics and
coil applied voltage (TV-8 type)
Pick-up voltage (cold start)
0
80
45
10
Max.
Pick-up voltage
8
x
Min.
6
Drop-out voltage
4
Contact resistance, mΩ
Coil applied voltage, %V
300
20°C 0A
10
0
60
10
100
Contact voltage, VAC
Coil applied voltage, %V
0
20°C 8A
30
Max.
x
Min.
2
40
35
30
25
Max.
20
15
x
10
Min.
5
0
4-(2). Electrical life test
(8A 277V AC, resistive load)
10
5
No. of operations, ×104
10
50
45
10
8
Max.
x
Min.
Pick-up voltage
6
Drop-out voltage
4
Max.
x
Min.
2
Contact resistance, mΩ
Pick-up and drop-out voltage, V
Contact
welding
detection
and Miscontacting
detection
circuit
0
Change of contact resistance
12
Circuit:
12V DC
5
4
No. of operations, ×10
Change of pick-up and drop-out voltage
Sample: LKF1aMQ-12V-1-8, 6 pcs.
Operation frequency: 20 times/min.
(ON/OFF = 1.5s: 1.5s)
Ambient temperature: 20°C 68°F
277V AC
0
0
40
35
30
25
20
Max.
15
x
Min.
10
5
0
ds_61B13_0007_en_lkf: 310309J
0
2.5
4
No. of operations, ×10
5
0
0
2.5
No. of operations, ×104
5
3
LK-F
5-(1). Operation noise distribution
LK-F (Height: 10 mm, Silent)
When release
30
30
Quantity
Microphone
When operate
Quantity
Measuring conditions
Sample: LKF1aMQ-12V-1-5, 50pcs
Background noise: approx. 20dB
Coil voltage: 12V DC
Equipment setting: “A” weighted
Single part (refer to figure below)
With diode
20
10
Mat
20
10
50mm
1.969inch
0
30 35 40 45 50 55 60 65 70 75 80 85
Relay
0
25 30 35 40 45 50 55 60 65 70 75 80
Sound pressure, dB
Sound pressure, dB
5-(2). Operation noise distribution
LK-F (Height: 10 mm, Standard)
When release
30
30
Quantity
Microphone
When operate
Quantity
Measuring conditions
Sample: LKF1aM-12V-1-5, 50pcs
Background noise: approx. 20dB
Coil voltage: 12V DC
Equipment setting: “A” weighted
Single part (refer to figure below)
With diode
20
10
Mat
20
10
50mm
1.969inch
0
30 35 40 45 50 55 60 65 70 75 80 85
Relay
0
30 35 40 45 50 55 60 65 70 75 80 85
Sound pressure, dB
5-(3). Operation noise distribution
LK-S (Height: 25 mm) Refer to comparison
50mm
1.969inch
Relay
When release
30
30
Quantity
Microphone
When operate
Quantity
Measuring conditions
Sample: LKS1aF-12V, 50pcs
Background noise: approx. 20dB
Coil voltage: 12V DC
Equipment setting: “A” weighted
Single part (refer to figure below)
With diode
Sound pressure, dB
20
20
10
10
Mat
0
30 35 40 45 50 55 60 65 70 75 80 85
Sound pressure, dB
4
0
25 30 35 40 45 50 55 60 65 70 75 80
Sound pressure, dB
ds_61B13_0007_en_lkf: 310309J
LK-F
DIMENSIONS (Unit: mm inch)
External dimensions
PC board pattern (Bottom view)
2-0.9 dia.
2-.035 dia.
2-1.3 dia.
2-.051 dia.
18.25
.719
26.1
1.028
1.6
.063
7.5
.295
19.7
.776
0.7
.028
0.5 dia.
.020 dia. 0.3
.012
26.3
1.035
2.3
.091
3.35
.132
18.25
.719
10.0
.394
22.0
.899
3.2
.130
0.4
.016
Schematic (Bottom view)
1.6
.063
1.0
.039
9.1
.358
19.7
.776
1.0
.039
22.0
.866
Dimension:
Max. 1mm .039 inch:
1 to 3mm .039 to .118 inch:
Min. 3mm .118 inch:
General tolerance
±0.1 ±.004
±0.2 ±.008
±0.3 ±.012
SAFETY STANDARDS
Certification authority
TV-5 type
TV-8 type
UL, C-UL
TV-5 5 A 277 V AC
TV-8 8 A 277 V AC
3/100 A 250 V AC 40T85 μ
SEMKO
TÜV
ds_61B13_0007_en_lkf: 310309J
EN61810-1 5 A 250 V AC (cosφ = 1.0)
EN61810-1 8 A 250 V AC (cosφ = 1.0)
5
LK-F
NOTES
Q Usage, transport and storage
conditions
1) Temperature:
–40 to +70°C –40 to +158°F
2) Humidity: 5 to 85% RH
(Avoid freezing and condensation.)
The humidity range varies with the
temperature. Use within the range
indicated in the graph below.
3) Atmospheric pressure: 86 to 106 kPa
Temperature and humidity range for
usage, transport, and storage
Humidity, %R.H.
85
Tolerance range
(Avoid freezing
when used at
temperatures
lower than
0°C 32°F)
5
-40
-40
(Avoid
condensation
when used at
temperatures
higher than
0°C 32°F)
0
+32
Temperature, °C °F
70
+158
4) Condensation
Condensation forms when there is a
sudden change in temperature under
high temperature and high humidity
conditions. Condensation will cause
deterioration of the relay insulation.
5) Freezing
Condensation or other moisture may
freeze on the relay when the
temperatures is lower than 0°C 32°F.
This causes problems such as sticking of
movable parts or operational time lags.
6) Low temperature, low humidity
environments
The plastic becomes brittle if the relay is
exposed to a low temperature, low
humidity environment for long periods of
time.
Q Solder and cleaning conditions
1) Please obey the following conditions
when soldering automatically.
(1) Preheating: Within 120°C 248°F
(solder surface terminal portion) and
within 120 seconds
(2) Soldering iron: 260°C±5°C
500°F±41°F (solder temperature) and
within 6 seconds (soldering time)
2) Since this is not a sealed type relay, do
not clean it as is. Also, be careful not to
allow flux to overflow above the PC board
or enter the inside of the relay.
Q Certification
1) This relay is UL and C-UL certified.
UL and C-UL standards:
TV-5 5 A 277 V AC
TV-8 8 A 277 V AC
2) This relay is certified by TÜV as an
electromagnetic relay that complies with
EN61810-1.
TÜV standards:
TV-5 type 5 A 250 V~ cosφ = 1.0
TV-8 type 8 A 250 V~ cosφ = 1.0
3) This relay is certified by SEMKO.
3/100 A 250 V AC 40T85 μ
Steady-state current: 3A/Inrush current:
100 A, Load voltage: 250 V AC
Ambient temperature: –40 to +85°C –40
to +185°F, Micro-gap
Q Others
1) For precautions regarding use and
explanations of technical terminology,
please refer to our web site.
(panasonic-electric-works.net/ac)
2) To ensure good operation, please keep
the voltage on the coil ends to ±5% (at
20°C 68°F) of the rated coil operation
voltage. Also, please be aware that the
pick-up voltage and drop-out voltage may
change depending on the temperature
and conditions of use.
3) Keep the ripple rate of the nominal coil
voltage below 5%.
4) The cycle lifetime is defined under the
standard test condition specified in the
JIS C 5442 standard (temperature 15 to
35°C 59 to 95°F, humidity 25 to 75%).
Check this with the real device as it is
affected by coil driving circuit, load type,
activation frequency, activation phase,
ambient conditions and other factors.
Also, be especially careful of loads such
as those listed below.
(1) When used for AC load-operating and
the operating phase is synchronous.
Rocking and fusing can easily occur due
to contact shifting.
(2) Highly frequent load-operating
When highly frequent opening and
closing of the relay is performed with a
load that causes arcs at the contacts,
nitrogen and oxygen in the air is fused by
the arc energy and HNO3 is formed. This
can corrode metal materials.
Three countermeasures for these are
listed here.
• Incorporate an arc-extinguishing circuit.
• Lower the operating frequency
• Lower the ambient humidity
5) This value can change due to the
switching frequency, environmental
conditions, and desired reliability level,
therefore it is recommended to check this
with the actual load.
6) Heat, smoke, and even a fire may
occur if the relay is used in conditions
outside of the allowable ranges for the
coil ratings, contact ratings, operating
cycle lifetime, and other specifications.
Therefore, do not use the relay if these
ratings are exceeded.
7) If the relay has been dropped, the
appearance and characteristics should
always be checked before use.
8) Incorrect wiring may cause
unexpected events or the generation of
heat or flames.
9) The amount of relay operation noise
will vary depending on the substrate used
for mounting. Please use after verifying
with the relay mounted on the substrate.
10) There are no restrictions as to how
this relay should be oriented during
installation. However, due to gravitation
there may be slight differences in pick-up/
drop-out voltage and operate/release
time, etc., depending on the orientation.
Therefore, when evaluating the relay,
please do so with the relay installed with
the actual orientation.
For Cautions for Use, see Relay Technical Information.
6
ds_61B13_0007_en_lkf: 310309J

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