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RK Series

Features | Dimensions | Schematics | Pad Layout | Part Number System | Coil Ratings | Contact Ratings | Characteristics | Reference Data

Features

UL & CUL File #E256619

1. Small size (10.2 x 20.6 x 15.3mm) at 10A switching capacity.
2. Surge resistiveness of 5000V.
3. Sealed or unsealed types available.

Dimensions

Unit: mm

Schematics

(Bottom view)

Pad Layout

(Bottom view)
Unit: mm

Part Number System

RK
1		 1C
2		 - 12
3		 H
4		 S
5

1 Basic Designation
    

RK = RK Series

2 Contact Arrangement
    

1A = 1 Form A (SPST-NO)
1C = 1 Form C (SPDT)

3 Coil Voltage

     3~48V
4 Coil Sensitivity
Nil = 0.45W
H = 0.20W

5 Enclosure
    

Nil = Unsealed type
S = Sealed type

Coil Ratings (at 20°C)

Power Consumption/
Coil Sensitivity

Coil Nominal Voltage (VDC)

Coil Resistance
(Ω ± 10%)

Pick-Up Voltage (VDC) max.
Nominal Current
(mA)

Drop-Out Voltage
(VDC) min.

Max. Allowable Voltage

Coil Sensitivity
Nil = 0.45W
3
20.0
75%
150
5%
130% of nominal voltage
5
55.0
91
6
80.0
75
9
180
50
12
320
37.5
18
720
25.0
24
1280
18.8
48
5120
9.4

Coil Sensitivity
H = 0.20W
3
45.0
75%
66.7
5%
130% of nominal voltage
5
125
40
6
180
33.3
9
405
22.2
12
720
16.7
18
1620
11.1
24
2880
8.3
48
11520
4.2

 

Contact Ratings

Coil Sensitivty / Nominal Operating Power
Nil = 0.45W
H = 0.20W
Contact Arrangement
1C; 1A
Max. Switching Power
1250VA 14W
600VA 90W
Max. Switching Voltage
265VAC 30VDC
Max. Switching Current
10A
5A
Contact Resistance (By voltage drop 6V 1A)
50mΩ max.

UL/ C-UL Rating
Resistive Load (cos Ø = 1)

Inductive Load (cos Ø = 0.75 ~ 0.8)
1A
10A / 120VAC
5A / 250VAC
5A / 30VDC

1C
NC: 3A / 250VAC
3A / 30VDC
NO: 5A / 250VAC
5A / 30VDC

1.5A / 250VAC
1.5A / 30VDC
1A
3A / 250VAC
3A / 30VDC

1A / 250VAC
1A / 30VDC
Contact Material
silver alloy

Characteristics

Electrical Life (at 20cpm)
1 x 105
Mechanical Life (at 120cpm)
1 x 107
Initial Insulation Resistance
Min. 1000MΩ 500VDC
Operate Time
0.45W = 10ms max., 0.20Ω = 15ms max.
Release Time
4ms max.
Initial Breakdown Voltage
50/60Hz 1000VAC 1 min. (between open contacts)
50/60Hz 5000VAC 1 min. (between coil & contact)
Vibration Resistance
Functional: 10 to 55Hz at double Amplitude of 1.5mm
Destructive: 10 to 55Hz at double Amplitude of 1.5mm
Shock Resistance
Functional: Min. 10G
Destructive: Min. 100G
Insulation Withstand Voltage
5000V 1.2 x 50ms (between coil and contacts)
Ambient Temperature
-40°C ~ +85°C
Operating Humidity
45 to 85% RH
Unit Weight
Approx. 9.5g

Reference Data

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Industrial Relays

Notes on Correct Use

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Last updated: 8-27-05