• Product name: KS40(DC Output)SSR
  • Product number: KS40(DC Output)SSR
  • Control Voltage: 5VDC 12VDC 24VDC
  • Load Voltage: 50VDC 100VDC
  • Load current: 2A
  • Installation: PCB Mounting

● Bipolar transistor output

● Photoelectric isolation

● LED status indicator

● Dielectric strength 2500V

● Printed circuit board mount

● Pin-compatible with standard package EMR

KS40 is a set of SPST-NO and double in-line printed circuit board mount SSR, provides DC output switching in a high density package.  This relay's DC input is compatible with 5VDC,12VDC and 24VDC logic systems. The relays include a LED indicator to provide input status information. Rated load curent is 2A, rated load voltage is 50VDC,100VDC. The relays provide 2500VAC photo electric isolation, between input and output. 

KS40 enables weak against strong electrical isolation and control, and level conversion. Can easily connect with computer and a variety of digital circuit interface.

Input Parameter (Ta = 25℃)

Control voltage range 5 (4 ~ 6)VDC
12 (9.6 ~ 14.4)VDC
24 (19.2 ~ 28.8)VDC
Must turn-on voltage 5                       4VDC
12  9.6VDC
24 19.2VDC
Must turn-off voltage                        1.0VDC
Max.reverse protection voltage 5    -6VDC
12 -14.4VDC
24 -28.8VDC
Max.input current                           20mA


Output Parameter (Ta = 25℃)

Load voltage range 50D: (3 ~ 50)VDC
100D: (3 ~100)VDC
Load current range  (0.01 ~ 2)A
Max.surge current (10ms)  8Apk 
Max.off-state leakage current  0.1mA 
Max.on-state voltage drop  1.5VDC 
Max.turn-on time  1ms 
Max.turn-off time  1ms 
Max.transient voltage  50D: 70Vpk
100D: 125Vpk


GENERAL (Ta = 25℃)

Dielectric strength(input to output) 2500VAC, 50Hz/60Hz, 1min
Insulation resistance 1000MΩ(500VDC)
Max.capacitance(input to output) 8pF
Vibration resistance 10Hz-55Hz 1.5mm DA
Shock resistance 980m/s2
Operating temperature -30 ~ 80
Storage temperature -30 ~ 100
Ambient humidity 45% ~ 85% RH
Unit weight Approx 18g


1.Soldering must be completed within 10s at 260 or less or within 5s at 350 or less.

2.If poor ventilation is unavoidable,the load current must be reduced.

3.Make sure that the polarity is correct when connecting, to avoid damage to the relay.

4.If the relay's load is inductive(such as motors, electromagnetic valves, solenoids, contactor coils, etc.), a diode should be parallel with a diode across the load, to absorb transients reverse electromotive force.

5.Please do not use the relay beyond the descriptions in the datasheet.

 It is widely used in industrial automation field: DC motor, DC power supply, a variety of electromagnetic devices and intelligent instruments and so on, Suitable for harsh occasions of corrosive moisture and explosion proof.

Download attachments : KS40(DC)

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