Nil: 2 Form A, 1 FormA 1 Form B (Au-flashed AgNi type)
Note: VDE approved type is available.
–1–
ASCTB177E 201702-T
DK
TYPES
Contact
arrangement
Nominal coil
voltage
3V DC
5V DC
6V DC
9V DC
12V DC
24V DC
3V DC
5V DC
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.
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
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
1 Form A
1 Form A
1 Form B
* Sockets available.
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 20°C
68°F)
Drop-out voltage
(at 20°C
68°F)
Nominal operating
current
[±10%] (at 20°C
68°F)
66.6mA
40mA
33.3mA
22.2mA
16.6mA
8.3mA
Coil resistance
[±10%] (at 20°C
68°F)
45Ω
125Ω
180Ω
405Ω
720Ω
2,880Ω
130%V of
nominal voltage
Nominal operating
power
Max. applied voltage
(at 20°C
68°F)
200mW
2) 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 20°C
68°F)
Reset voltage
(at 20°C
68°F)
Nominal operating
current
[±10%] (at 20°C
68°F)
Set coil
Reset coil
66.6mA
40mA
33.3mA
22.2mA
16.6mA
8.3mA
66.6mA
40mA
33.3mA
22.2mA
16.6mA
8.3mA
Coil resistance
[±10%] (at 20°C
68°F)
Set coil
45Ω
125Ω
180Ω
405Ω
720Ω
2,880Ω
Reset coil
45Ω
125Ω
180Ω
405Ω
720Ω
2,880Ω
130%V of
nominal voltage
Nominal operating
power
Set coil
Reset coil
Max. applied voltage
(at 20°C
68°F)
200mW
200mW
–2–
ASCTB177E 201702-T
DK
2. Specifications
Characteristics
Contact
Item
Arrangement
Contact resistance (Initial)
Contact material
Nominal switching capacity (resistive load)
Max. switching power (resistive load)
Max. switching voltage
Max. switching current
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
Specifications
1 Form A
1 Form A 1 Form B
2 Form A
Max. 30 mΩ (By voltage drop 6 V DC 1A)
Au-flashed AgSnO
2
type
Au-flashed AgNi type
10 A 250 V AC, 10 A 30 V DC 8 A 250 V AC,8 A 30 V DC
8 A 250 V AC,8 A 30 V DC
2,500VA, 300 W
2,000 VA, 240 W
2,000 VA, 240 W
250 V AC, 125 V DC (0.2A)
250 V AC, 125 V DC (0.2A)
250 V AC, 125 V DC (0.2A)
10 A
8A
8A
10m A 5 V DC
Min. 1,000MΩ (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. 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: 10μs.)
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: 10μs.)
10 to 55 Hz at double amplitude of 3 mm
Min. 5×10
7
(at 300 times/min.)
Ambient temperature: –40°C to +65°C
–40°F to +149°F,
Humidity: 5 to 85% R.H. (Not freezing and condensing at low temperature)
Approx. 5 g
.18 oz
Approx. 6 g
.21 oz
Approx. 6 g
.21 oz
Rating
Operate time [Set time] (at 20°C
68°F)
Release time [Reset time] (at 20°C
68°F)
Shock resistance
Mechanical
characteristics
Vibration resistance
Expected life
Conditions
Unit weight
Mechanical
Conditions for operation, transport and storage*
3
Functional
Destructive
Functional
Destructive
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 limit of the ambient temperature is the maximum temperature that can satisfy the coil temperature rise value. Refer to Usage, transport and storage
conditions in NOTES.
3. Electrical life
Condition: Resistive load, at 20 times/min.
Type
1 Form A
1 Form A 1 Form B, 2 Form A
Switching capacity
10A 250V AC
10A 30V DC
8A 250V AC
8A 30V DC
Number of operations
Min. 1×10
5
Min. 1×10
5
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)
100
2-(1). Life curve (1 Form A)
1,000
Contact current, A
Contact current, A
AC resistive load
10
5 AC inductive load
(cosϕ= 0.4)
DC inductive load
(L/R = 7 ms)
1
DC resistive load
AC resistive load
Life,
×10
4
10
5
AC inductive load
(cosϕ= 0.4)
DC inductive load
(L/R = 7 ms)
DC resistive load
100
250 V AC resistive load
30 V DC resistive load
1
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
–3–
ASCTB177E 201702-T
DK
2-(2). Life curve
(1 Form A 1 Form B, 2 Form A)
1,000
Operate/release time, ms
3-(1). Operate/Release time (1 Form A)
Tested sample: DK1a-24V, 5 pcs.
9
8
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
Operate time
Release time
(with diode)
Max.
x
Min.
Max.
x
Min.
Max.
x
Min.
7
6
5
4
3
2
1
Release time
Operate time
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)
Release time
(with diode)
Max.
x
Max.
x
Min.
Min.
Max.
x
Min.
Release time
80
90
10
110
120
130
140
Coil applied voltage,%V
1
0
1
2
3
4
5
6
7
8
9
10
0
0
80
90
10
110
120
130
140
Contact current, A
Coil applied voltage,%V
4-(1). Coil temperature rise (1 Form A)
Tested sample: DK1a-12V, 5 pcs.
Ambient temperature: 30°C
86°F
4-(2). Coil temperature rise
(1 Form A 1 Form B, 2 Form A)
Tested sample: DK1a1b-12V, 5 pcs.
Ambient temperature: 20°C
68°F
5-(1). Ambient temperature characteristics
(1 Form A)
Tested sample: DK1a-24V, 6 pcs
Ambient temperature:
–40°C to +80°C
–40°F to +176°F
Variation ratio, %
130
120
110
100
-40
-20
0
Pick-up
voltage
20 40
60
80
Ambient
temperature,
°C
90
80
70
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
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
–4–
ASCTB177E 201702-T
DK
DIMENSIONS
(mm
inch)
1. 1 Form A type
CAD Data
The CAD data of the products with a
CAD Data
mark can be downloaded from: http://industrial.panasonic.com/ac/e/
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