59
LK-RELAYS
VDE
SLIM POWER RELAY WITH
HIGH INRUSH CURRENT
CAPABILITY
mm
inch
24.0
.945
11.0
.433
25.0
.984
FEATURES
1. High inrush current capability
1) Operating load capability:
inrush 100 A, steady 5 A
2) UL/CSA, TV-5
2. High insulation resistance between
contact and coil
1) Creepage distance and clearances
between contact and coil: Min. 6 mm .
236
inch
(In compliance with IEC65)
2) Surge withstand voltage between con-
tact and coil: 10,000 V or more
3. High noise immunity realized by the
card separation structure between
contact and coil
4. Popular terminal pitch in AV equip-
ment field
mm
inch
Coil
COM
16.5
.650
20
.787
N.O.
7.5
.295
1
.039
1
.039
5. Space-saving slim type
Base area: Width 11
Length 24 mm
Width .433
Length .945 inch
6. Conforms to the various safety stan-
dards
UL, CSA, VDE, TV, SEMKO, SEV, BSI
approved
Creepage distance and clear-
ances in compliance with IEC65
Card
Partition wall
SPECIFICATIONS
Contact
Coil
Characteristics
Arrangement
1 Form A
Initial contact resistance, max.
(By voltage drop 6 V DC 1 A)
Max. 100 m
Contact material
Silver alloy
Rating
(resistive
load)
Nominal switching capacity
5 A 277 V AC, 5 A 30 V DC
Max. switching power
1,385 VA, 150 W
Max. switching voltage
277 V AC, 30 V DC
Max. switching current
5A (AC), 5 A (DC)
Expected
life (min.
ope.)
Mechanical (at 180 cpm)
2
10
6
Electrical (at 20 cpm)
(at rated load)
10
5
Nominal operating power
530 mW
Max. operating speed
20 cpm
Initial insulation resistance*
1
Min. 1,000 M
(at 500 V DC)
Initial
breakdown
voltage*
2
Between open contacts
1,000 Vrms for 1 min
Between contacts and coil
4,000 Vrms for 1 min
Initial surge voltage between con-
tact and coil*
3
Min. 10,000 V
Operate time*
4
(at nominal voltage)
Approx. 7 ms (at 20
C
68
F
)
Release time (without diode)*
4
(at nominal voltage)
Approx. 2 ms (at 20
C
68
F
)
Temperature rise (at 70
C)
Max. 35
C with nominal coil voltage
at 5A contact carrying current
(resistance method)
Shock
resistance
Functional*
5
Min. 200 m/s
2
Destructive*
6
Min. 1,000 m/s
2
Vibration
resistance
Functional*
7
10 to 55 Hz
at double amplitude of 1.5 mm
Destructive
10 to 55 Hz
at double amplitude of 1.5 mm
Conditions for operation,
transport and storage*
8
(Not freezing and condens-
ing at low temperature)
Ambient temp.
40 to +70
C
-40 to +158
F
Humidity
5 to 85%R.H.
Air pressure
86 to 106 kPa
Unit weight
Approx. 12 g .
42 oz
Remarks
* Specifications will vary with foreign standards certification ratings.
*
1
Measurement at same location as "Initial breakdown voltage" section.
*
2
Detection current: 10mA
*
3
Wave is standard shock voltage of
1.2
50
s according to JEC-212-1981
*
4
Excluding contact bounce time.
*
5
Half-wave pulse of sine wave: 11 ms; detection time: 10
s
*
6
Half-wave pulse of sine wave: 6 ms
*
7
Detection time: 10
s
*
8
Refer to 5. Conditions for operation, transport and storage mentioned in
AMBIENT ENVIRONMENT (Page 24).
TYPICAL APPLICATIONS
AV equipment: TV's, VTR's, etc.
OA equipment
HA equipment
ORDERING INFORMATION
1a: 1 Form A
F: Flux-resistant type
5, 9, 12, 24 V
Contact arrangement
Protective construction
Coil voltage (DC)
Ex.
LK
1a
F
--
24V
UL/CSA, TV, SEMKO, TV-5 approved type is standard.
(Note) Standard packing Carton: 100 pcs. Case: 500 pcs.
LK
60
TYPES AND COIL DATA (at 20
C
68
F
)
Part No.
Nominal
voltage,
V DC
Pick-up voltage
V DC (max.)
(Initial)
Drop-out voltage
V DC (min.)
(Initial)
Coil resistance,
(
10%)
Nominal operat-
ing current, mA
(
10%)
Nominal
operating power,
mW
Max. allowable
voltage,
V DC (at 20C
68F
)
LK1aF-5V
5
3.5
0.5
47
106.4
530
6.5
LK1aF-9V
9
6.3
0.9
153
58.8
530
11.7
LK1aF-12V
12
8.4
1.2
272
44.2
530
15.6
LK1aF-24V
24
16.8
2.4
1,087
22.1
530
31.2
DIMENSIONS
mm
inch
Dimension :
General tolerance
Max. 1mm .
039 inch
:
0.1
.004
1 to 3mm
.039 to .118 inch
:
0.2
.008
Min. 3mm .
118 inch
:
0.3
.012
0.3
0.4
.016
.065
.020 dia.
.012
4
.157
0.5
.020
1.65
Max. 24
Max. 25
.984
.433
.945
Max. 11
0.5 dia.
16.5
.650
20
.787
7.5
.295
1
.039
1
.039
PC board pattern (Copper-side view)
Tolerance
0.1
.004
Schematic (Bottom view)
2-0.9 dia
2-.035 dia
2-1.3 dia
2-.051 dia
16.5
.650
7.5
.295
20.0
.787
REFERENCE DATA
1. Max. switching power (AC resistive load)
2. Coil temperature rise
Sample: LK1aF-12V, 6 pcs.
Point measured: coil inside
Contact current: 5 A
3. Ambient temperature characteristics
Contact current: 5 A
0.1
0.1
1
10
1
10
100
1000
Contact voltage, V
Contact current, A
Temperature rise,
C
Ambient temperature
30
C
Ambient temperature
70
C
Coil applied voltage, %V
80
10
0
20
30
40
50
90
100
110
120
10
60
80
100
120
140
160
180
200
20
30
40
50
60
70
80
Ambient temperature,
C
Allowable ambient temperatures
against % coil voltages
(max. inside the coil tem-
perature set as
115
C
239
F
)
Pick-up voltage
Coil applied voltage, %V
Cold start
4. Life curve
Operation frequency: 20 times/min.
(ON/OFF = 1.5s: 1.5s)
Ambient temperature: room temperature
5-1. Operate & release time (without diode)
Sample: LK1aF-12V, 20 pcs.
5-2. Operate & release time (with diode)
Sample: LK1aF-12V, 20 pcs.
100
10
1
1
0
2
3
4
5
Contact current, A
250V AC resistive load
Life,
10
4
Coil applied voltage, %V
Operate & release time, ms
0
5
10
15
Operate time
Release time
70
100
130
Max.
Min.
Max.
Min.
Coil applied voltage, %V
Operate & release time, ms
Operate time
Release time
0
5
10
15
70
100
130
Max.
Min.
Max.
Min.
LK
61
6-1. Electrical life test
(5 A 277 V AC, resistive load)
Sample: LK1aF-12V, 6 pcs.
Operation frequency: 20 times/min.
(ON/OFF = 1.5s: 1.5s)
Ambient temperature: 26
C
79
F
Circuit:
Change of pick-up and drop-out voltage
Change of contact resistance
DC12V
Contact
welding
detection
and Mis-
contacting
detection
circuit
AC277V
0
5
10
No. of operations,
10
4
Ratio against the rated voltage, %V
0
20
40
60
80
100
Pick-up voltage
Drop-out voltage
Max.
Min.
Max.
Min.
0
5
10
No. of operations,
10
4
Contact resistance, m
Max.
Min.
0
10
20
30
40
50
6-2. Electrical life test
(UL lamp load test TV-5)
Tested sample: LK1aF-12V, 6 pcs.
Overload test
Load: 7.5 A 120 V AC (60 Hz),
Inrush: 111 A
Operation frequency: 10 times/min
(ON: OFF = 1 s: 5 s)
No. of operations: 50 ope.
Endurance test
Load: 5A 120 V AC (60 Hz),
Inrush: 78 A
Operation frequency: 10 times/min
(ON: OFF = 1 s: 5 s)
No. of operations: 25,000 ope.
Change of pick-up and drop-out voltage
Change of contact resistance
No. of operations,
10
4
Max.
Min.
Max.
Min.
Ratio against the rated voltage, % V
0
0
2.5
20
40
60
80
100
Pick-up voltage
Drop-out voltage
No. of operations,
10
4
Max.
Min.
0
0
2.5
10
20
30
40
50
Contact resistance, m
NOTES
1. Cleaning
This relay is not the sealed type, so it can-
not be immersion cleaned. Be careful that
flux does not overflow onto the PC board
or penetrate inside the relay.
2. Soldering
We recommend the following soldering
conditions.
1) Automatic soldering
* Preheating: 100
C
212
F
, within 2 mins
(PC board solder surface)
* Soldering: 260
C
500
F
, within 5 s
2) Hand soldering
* Iron tip temperature: 280 to 300
C
536
to 571
F
* Soldering iron: 30 to 60W
* Soldering time: Within 3 s
For Cautions for Use, see Relay Technical Information (Page 11 to 39).
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