Nil: 2 Form A, 1 Form A 1 Form B (Au-flashed AgNi type)
Notes: 1. UL/CSA, TÜV approved type is standard.
2. VDE approved type is available.
1
ds_61A03_en_dk: 201113D
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TYPES
Contact
arrangement
Nominal coil
voltage
3V DC
5V DC
1 Form A
6V DC
9V DC
12V DC
24V DC
3V DC
5V DC
1 Form A
1 Form B
6V DC
9V DC
12V DC
24V DC
3V DC
5V DC
2 Form A
6V DC
9V DC
12V DC
24V DC
Standard packing: Carton: 50 pcs.; Case: 500 pcs.
* For sockets, see page 8.
Single side stable
Part No.
DK1a-3V-F
DK1a-5V-F
DK1a-6V-F
DK1a-9V-F
DK1a-12V-F
DK1a-24V-F
DK1a1b-3V
DK1a1b-5V
DK1a1b-6V
DK1a1b-9V
DK1a1b-12V
DK1a1b-24V
DK2a-3V
DK2a-5V
DK2a-6V
DK2a-9V
DK2a-12V
DK2a-24V
1 coil latching
Part No.
DK1a-L-3V-F
DK1a-L-5V-F
DK1a-L-6V-F
DK1a-L-9V-F
DK1a-L-12V-F
DK1a-L-24V-F
DK1a1b-L-3V
DK1a1b-L-5V
DK1a1b-L-6V
DK1a1b-L-9V
DK1a1b-L-12V
DK1a1b-L-24V
DK2a-L-3V
DK2a-L-5V
DK2a-L-6V
DK2a-L-9V
DK2a-L-12V
DK2a-L-24V
2 coil latching
Part No.
DK1a-L2-3V-F
DK1a-L2-5V-F
DK1a-L2-6V-F
DK1a-L2-9V-F
DK1a-L2-12V-F
DK1a-L2-24V-F
DK1a1b-L2-3V
DK1a1b-L2-5V
DK1a1b-L2-6V
DK1a1b-L2-9V
DK1a1b-L2-12V
DK1a1b-L2-24V
DK2a-L2-3V
DK2a-L2-5V
DK2a-L2-6V
DK2a-L2-9V
DK2a-L2-12V
DK2a-L2-24V
RATING
1. Coil data
1) Single side stable
Nominal coil
voltage
3V DC
5V DC
6V DC
9V DC
12V DC
24V DC
70%V or less of
nominal voltage
(Initial)
10%V or more of
nominal voltage
(Initial)
Pick-up voltage
(at 20C
68F)
Drop-out voltage
(at 20C
68F)
Nominal operating
current
[10%] (at 20C
68F)
66.6mA
40mA
33.3mA
22.2mA
16.6mA
8.3mA
Coil resistance
[10%] (at 20C
68F)
45
125
180
405
720
2,880
200mW
130%V of
nominal voltage
Nominal operating
power
Max. applied voltage
(at 20C
68F)
2) 1 coil latching
Nominal coil
voltage
3V DC
5V DC
6V DC
9V DC
12V DC
24V DC
70%V or less of
nominal voltage
(Initial)
70%V or more of
nominal voltage
(Initial)
Set voltage
(at 20C
68F)
Reset voltage
(at 20C
68F)
Nominal operating
current
[10%] (at 20C
68F)
33.3mA
20mA
16.6mA
11.1mA
8.3mA
4.1mA
Coil resistance
[10%] (at 20C
68F)
90
250
360
810
1,440
5,760
100mW
130%V of
nominal voltage
Nominal operating
power
Max. applied voltage
(at 20C
68F)
3) 2 coil latching
Nominal coil
voltage
3V DC
5V DC
6V DC
9V DC
12V DC
24V DC
70%V or less of
nominal voltage
(Initial)
70%V or less of
nominal voltage
(Initial)
Set voltage
(at 20C
68F)
Reset voltage
(at 20C
68F)
Nominal operating
current
[10%] (at 20C
68F)
Set coil
66.6mA
40mA
33.3mA
22.2mA
16.6mA
8.3mA
Reset coil
66.6mA
40mA
33.3mA
22.2mA
16.6mA
8.3mA
Coil resistance
[10%] (at 20C
68F)
Set coil
45
125
180
405
720
2,880
Reset coil
45
125
180
405
720
2,880
200mW
200mW
130%V of
nominal voltage
Nominal operating
power
Set coil
Reset coil
Max. applied voltage
(at 20C
68F)
ds_61A03_en_dk: 201113D
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DK
2. Specifications
Characteristics
Arrangement
Contact
Contact resistance (Initial)
Contact material
Nominal switching capacity (resistive load)
Max. switching power (resistive load)
Rating
Max. switching voltage
Max. switching current
Nominal operating power
Min. switching capacity (Reference value)*
1
Insulation resistance (Initial)
Breakdown voltage
(Initial)
Electrical
characteristics
Surge breakdown
voltage*
2
(Initial)
Between open contacts
Between contact and coil
between contacts and coil
Item
1 Form A
Au-flashed AgSnO
2
type
10 A 250 V AC, 10 A 30 V
DC
2,500VA, 300 W
250 V AC, 125 V DC
10 A
Specifications
1 Form A 1 Form B
Max. 30 m (By voltage drop 6 V DC 1A)
Au-flashed AgNi type
8 A 250 V AC,8 A 30 V DC
2,000 VA, 240 W
250 V AC, 125 V DC
8A
200 mW
10m A 5 V DC
Min. 1,000M (at 500V DC) Measurement at same location as “Breakdown voltage” section.
1,000 Vrms for 1min. (Detection current: 10mA.)
4,000 Vrms for 1min. (Detection current: 10mA.)
10,000 V
Max. 40C (By resistive method, nominal voltage applied to the coil; max. switching current)
Max. 10 ms (Approx. 5 ms) [10 ms (Approx. 5 ms)]
(Nominal coil voltage applied to the coil, excluding contact bounce time.)
Max. 8 ms (Approx. 3 ms) [10 ms (Approx. 3 ms)]
(Nominal coil voltage applied to the coil, excluding contact bounce time.) (without diode)
Min. 98 m/s
2
(Half-wave pulse of sine wave: 11 ms; detection time: 10s.)
Min. 980 m/s
2
(Half-wave pulse of sine wave: 6 ms.)
10 to 55 Hz at double amplitude of 1.5 mm (Detection time: 10s.)
10 to 55 Hz at double amplitude of 3 mm
Min. 510
7
(at 300 times/min.)
Min. 10
5
(resistive load, at 20 times/min., at rated capacity)
Ambient temperature: –40C to +65C
–40F to +149F,
Humidity: 5 to 85% R.H. (Not freezing and condensing at low temperature)
20 times/min.
Approx. 5 g
.18 oz
Approx. 6 g
.21 oz
Approx. 6 g
.21 oz
8 A 250 V AC,8 A 30 V DC
2,000 VA, 240 W
250 V AC, 125 V DC
8A
2 Form A
Temperature rise (coil) (at 65C
149F)
Operate time [Set time] (at 20C
68F)
Release time [Reset time] (at 20C
68F)
Shock resistance
Functional
Destructive
Functional
Destructive
Mechanical
characteristics
Vibration resistance
Expected life
Mechanical
Electrical
Conditions
Unit weight
Conditions for operation, transport and storage*
3
Max. operating speed (at rated load)
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
1.250s
according to JEC-212-1981
*3. The upper limit of the ambient temperature is the maximum temperature that can satisfy the coil temperature rise value. Refer to “6. Usage, Storage and Transport
Conditions“ in
AMBIENT ENVIRONMENT section in Relay Technical Information.
3
ds_61A03_en_dk: 201113D
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REFERENCE DATA
1-(1). Maximum operating power (1 Form A)
100
1-(2). Maximum operating power
(1 Form A 1 Form B, 2 Form A)
2-(1). Life curve (1 Form A)
1,000
Contact current, A
Contact current, A
Life,
×10
4
10
AC inductive load
(cosϕ = 0.4)
AC resistive load
10
5
AC inductive load
(cosϕ = 0.4) AC resistive load
100
250 V AC resistive load
30 V DC resistive load
1
DC inductive load
(L/R = 7 ms)
DC resistive
load
1
DC inductive load
(L/R = 7 ms)
DC resistive
load
10
250 V AC inductive load (cosϕ= 0.4)
30 V DC inductive load (L/R = 7 ms)
0.1
10
100
Contact voltage, V
1,000
0.1
10
100
Contact voltage, V
1,000
1
0
1
2
3
4
5
6
7
8
9
10
Contact current, A
2-(2). Life curve
(1 Form A 1 Form B, 2 Form A)
1,000
3-(1). Operate/Release time (1 Form A)
Tested sample: DK1a-24V, 5 pcs.
9
8
Operate/release time, ms
7
6
5
4
3
2
1
Release time
80
90
10
110
120
130
140
Coil applied voltage,%V
Release time
(with diode)
Operate time
3-(2). Operate/Release time
(1 Form A 1 Form B, 2 Form A)
Tested sample: DK1a1b-12V, 5 pcs.
9
8
Operate/release time, ms
7
6
5
4
3
2
1
0
80
90
10
110
120
130
140
Release time
Operate time
Max.
x
Min.
Max.
x
Min.
Release time
(with diode)
Max.
x
Min.
Life,
×10
4
100
250 V AC resistive load
30 V DC resistive load
10
250 V AC inductive load (cosϕ = 0.4)
30 V DC inductive load (L/R = 7 ms)
Max.
x
Max.
x
Min.
Min.
Max.
x
Min.
1
0
1
2
3
4
5
6
7
8
9
10
0
Contact current, A
Coil applied voltage,%V
4-(1). Coil temperature rise (1 Form A)
Tested sample: DK1a-12V, 5 pcs.
Ambient temperature: 30C
86F
4-(2). Coil temperature rise
(1 Form A 1 Form B, 2 Form A)
Tested sample: DK1a1b-12V, 5 pcs.
Ambient temperature: 20C
68F
5-(1). Ambient temperature characteristics
(1 Form A)
Tested sample: DK1a-24V, 6 pcs
Ambient temperature: –40C to +80C
–40F to +176F
Variation ratio, %
130
120
110
100
-40
-20
0
Pick-up
voltage
20 40
60
80
Ambient
temperature,
°C
90
80
Drop-out
voltage
Coil temperature rise,
°C
50
40
30
20
10
0
10A
7A
5A
0A
Coil temperature rise,
°C
50
40
30
20
10
0
8A
5A
0A
80
90
100 110 120 130
Coil applied voltage,%V
80
90
100 110 120 130
Coil applied voltage,%V
70
5-(2). Ambient temperature characteristics
(1 Form A 1 Form B, 2 Form A)
Variation ratio, %
130
120
110
Pick-up
voltage
-40 -20
0 100
20
90
80
70
40
60
80
Ambient
temperature,°C
Drop-out
voltage
ds_61A03_en_dk: 201113D
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DIMENSIONS
(mm
inch)
1. 1 Form A type
CAD Data
CAD
Data
Download
CAD
Data
from our Web site.
External dimensions
Single side stable type
20
.787
12.5
.492
PC board pattern (Bottom view)
2.54
.100
7.62
.300
7.62
.300
1.1 dia.
.043 dia.
9.7
.382
3.5
.138
0.4
.016
10.16
.400
0.8
.031
7.62
.300
0.8
.031
1.11
.044
1.2
.047
10.16
.400
0.4
.016
10.16
.400
0.3
.012
2 coil latching type
20
.787
12.5
.492
2.54
.100
7.62
.300
7.62
.300
1.1 dia.
.043 dia.
9.7
.382
3.5
.138
0.4
.016
2.54
.100
0.4
.016
7.62
.300
0.8
.031
7.62
.300
0.8
.031
1.11
.044
1.2
.047
10.16
.400
0.4
.016
10.16
.400
0.3
.012
General tolerance:
0.3
.012
Tolerance:
0.1
.004
Schematic (Bottom view)
Single side stable
1
-
+
6
3
4
(Deenergized condition)
1 coil latching
1
+
-
6
3
4
(Reset condition)
2 coil latching
1
-
+
6
+
5
3
4
(Reset condition)
Since this is a polarized relay, the connection to the coil
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