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DK Relays

Coil data

  • Operating characteristics such as 'Operate voltage' and 'Release voltage' are influenced by mounting conditions, ambient temperature, etc.
    Therefore, please use the relay within ±5% of rated coil voltage.
  • 'Initial' means the condition of products at the time of delivery.

1.Single side stable

Rated coil voltage Operate voltage *
(at 20°C)
Release voltage *
(at 20°C)
Rated operating
current
(±10%, at 20°C)
Coil resistance
(±10%, at 20°C)
Rated operating
power
Max. allowable
voltage
(at 20°C)
3 V DC Max. 70% V of rated coil voltage (Initial) Min. 10% V of rated coil voltage (Initial) 66.6 mA 45 Ω 200 mW 130% V of rated coil voltage
5 V DC 40 mA 125 Ω
6 V DC 33.3 mA 180 Ω
9 V DC 22.2 mA 405 Ω
12 V DC 16.6 mA 720 Ω
24 V DC 8.3 mA 2,880 Ω
*Square, pulse drive

2.2 coil latching

Rated coil
voltage
Set voltage *
(at 20°C)
Reset voltage *
(at 20°C)
Rated operating
current
(±10%, at 20°C)
Coil resistance
(±10%, at 20°C)
Rated operating
power
Max. allowable
voltage
(at 20°C)
Set coil Reset coil Set coil Reset coil Set coil Reset coil
3 V DC Max. 70% V
of rated coil
voltage
(Initial)
Max. 70% V
of rated coil
voltage
(Initial)
66.6 mA 66.6 mA 45 Ω 45 Ω 200 mW 200 mW 130% V of rated coil voltage
5 V DC 40 mA 40 mA 125 Ω 125 Ω
6 V DC 33.3 mA 33.3 mA 180 Ω 180 Ω
9 V DC 22.2 mA 22.2 mA 405 Ω 405 Ω
12 V DC 16.6 mA 16.6 mA 720 Ω 720 Ω
24 V DC 8.3 mA 8.3 mA 2,880 Ω 2,880 Ω
*Square, pulse drive

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Specifications

Item Specifications
Contact
data
Contact arrangement 1 Form A 1 Form A 1 Form B, 2 Form A
Contact resistance
(initial)
Max. 30 mΩ (by voltage drop 6 V DC 1 A)
Contact material Au-flashed AgSnO2 type Au-flashed AgNi type
Contact rating (resistive) 10 A 250 V AC, 10 A 30 V DC 8 A 250 V AC, 8 A 30 V DC
Max. switching power (resistive) 2,500 VA (AC), 300 W (DC) 2,000 VA (AC), 240 W (DC)
Max. switching voltage 250 V AC, 125 V DC (0.2 A)
Max. switching current 10 A (AC, DC) 8 A (AC, DC)
Min. switching load
(reference value) *1
10 mA 5 V DC
Insulation resistance
(Initial)
Min. 1,000 MΩ
(at 500 V DC, Measured portion is the same as the case of dielectric strength.)
Dielectric strength
(initial)
Between
open contacts
1,000 Vrms for 1 min (detection current: 10 mA)
Between
contact sets
- 4,000 Vrms for 1 min (detection current: 10 mA)
Between
contact and coil
4,000 Vrms for 1 min (detection current: 10 mA)
Surge withstand
voltage (initial) *2
Between
contact and coil
10,000 V
Time
characteristics
(initial)
Operate (Set) time Max. 10 ms (Max. 10 ms) at rated coil voltage
(at 20°C, without bounce)
Release (Reset) time Max. 8 ms (Max. 10 ms) at rated coil voltage
(at 20 °C, without bounce, without diode)
Shock
resistance
Functional 98 m/s2 (half-sine shock pulse: 11 ms, detection time: 10 μs)
Destructive 980 m/s2 (half-sine shock pulse: 6 ms)
Vibration
resistance
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 3 mm)
Expected life Mechanical life Min. 50 x 106 (switching frequency: 300 times/min)
Conditions Conditions for usage,
transport and storage *3
Ambient temperature: -40 to +65°C
Humidity: 5 to 85% RH
(Avoid icing and condensation)
Unit weight Approx. 5 g Approx. 6 g
*1This 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.
*2Wave is standard shock voltage of ±1.2×50 μs according to JEC-212-1981
*3For ambient temperature, please read "GUIDELINES FOR RELAY USAGE".

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Expected electrical life

Conditions: Resistive load, switching frequency 20 times/min

Type Switching capacity Number of operations
1 Form A 10 A 250 V AC Min. 100 x 103
10 A 30 V DC Min. 100 x 103
1 Form A 1 Form B
2 Form A
8 A 250 V AC Min. 100 x 103
8 A 30 V DC Min. 100 x 103

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