Home Projects Miscellaneous One Channel Relay Driver


One Channel Relay Driver
author: Rajkumar Sharma


This project is an one Channel Relay Driver suitable for a variety of projects.


Single Channel Relay project  is a simple and convenient way to interface a relay for switching application in your project.


Input - 12 VDC @ 42 mA
Output - SPDT relay
Relay specification - 5 A @ 230 VAC
Trigger level - 2 ~ 15 VDC
Header pins for connecting power and trigger voltage
LED indicates relay status
Power Battery Terminal (PBT) for easy relay output connection
Four mounting holes of 3.2 mm each
PCB dimensions 27 mm x 69 mm




 Parts List

 PCB Design


PCB top and bottom layers



120x90 spot



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