Relay module 1 channel with optoisolation - 10A / 250VAC contacts 5V coil*

The module is equipped with relay SRD-05 with coil powered with a voltage of 5 V with optical isolation of input and mounting holes. The system allows you to control actuators with microcontroller ports or with any commissioning set.

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Price 7,90 zł


  • The supply voltage VCC: 5 V
  • Activated with low state
  • Relay JQC-3FF-S-Z (documentation)
  • Parameters of contacts for resistive load:
    • 125 VAC / 15 A
    • 250 VAC / 10 A
    • 250 VDC / 7 A
  • Optoisolation EL817 (documentation)
  • The dimensions of the board 53 x 28 mm
  • Diameter of mounting holes: 3 mm


* Maximum contact voltage depends on the type of load - details in the documentation tab. Contact Data.


The module allows to control the actuators consuming the current up to 10 A using the microcontroller's ports or any commissioning set (including Arduino, Rasbperry Pi and STM32Discovery). Optoisolation seperates the control signal from the part associated with the power of relay, thereby providing work safety of the management system.


For proper operation, it is sufficient to mount the power supply of relay and digital control signal. Leads are the standard goldpin strips with pitch of 2.54 mm which enables connecting via popular connecting cables.


Examples of application

  • Driver of lighting
  • The driver of actuators
  • Switch for electric devices, including motors



The module has three input leads VCC, GND, IN. For the system to work correctly, you must connect the power supply 5 V to the VCC pin, ground GND and the input signal IN.


Output leads are describe as NO - disabled by default, NC - connected, by default, with COM. Indicating the low status on the IN pin, switches the relay and makes the connection between the COM and NO, disconnecting the COM from NC.



  • Channels 1
  • Interface Digital I / O
  • Test: 3


Posting the payment for the order on our account on a business day up to 13:00 means sending the goods on the same day!


The time of payment depends on the hours of ELIXIR session of the sender's bank and the recipient of the transfer (more information on this subject, for example on the website


The table presents available forms of delivery in Poland


Carrier and

Bank wire

by cash


Poczta Polska

terms of service

9,90 PLN17,90 PLN1-3 days

Kurier GLS

terms of service

14,90 PLN22,90 PLN

1-2 days

Paczkomaty 24/7 

terms of service

12,90 PLN-1-3 days

If the amount to pay for products exceeds 500 PLN
Delivery is for free!


  • Free delivery of orders over 500 PLN does not apply to parcels addressed outside of Poland.
  • Free delivery does not apply when changing orders.
  • The delivery period is counted in working days from the date of dispatch of the order.