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Relay module - Dec 2017

A PCB with 4 relays and transistors


DESCRIPTION


Making your own module is not always the best idea, using 2n2222 transistors to drive relays may be an even worse idea :)
Just a PCB with 4 relays, 4 transistors, 4 resistors and 4 connectors, everything is in its right place.

There are even flywheel diodes !!


DATASHEET


JRC-21F_DATASHEET


GALLERY


Video demo

demo_photo

Top side of the PCB

demo_photo

Back side of the PCB

demo_photo

Schematic

demo_photo


© Louis NAILI 2025