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Small green circuit board with relay and terminal blocks

YINGHUA

YINGHUA 6-24V Self-locking Bistable Relay Module international power cord

SKU CH-SPFJ-HVBNP

Latching relay module holds its state without continuous power from 6 to 24 V

  • Self-locking bistable operation holds state without continuous power
  • Low pulse trigger simplifies control logic for PNP circuits
  • Wide 6-24V supply range suits varied DC power sources
  • Flip-flop latch design enables reliable on-off switching

6-24V Self-locking Bistable Relay Module

The YINGHUA module provides a PNP-type bistable relay that latches with a low-level pulse trigger. It operates across a 6 to 24 volt range and holds its state without continuous power. This suits automation experiments, hobbyist control boards and low-voltage switching tasks where a flip-flop action is required.

Upgrading from monostable or manually toggled relays

Makers replacing single-coil relays that need constant energising will gain a true latch function that stays set after a brief pulse. The jump is worth it when a circuit must remember its last state through power cycles or when control lines can only deliver momentary signals. Buyers who need higher contact ratings or AC mains switching should look elsewhere.

Highlights

  • Self-locking bistable operation holds state without continuous power
  • Low pulse trigger simplifies control logic for PNP circuits
  • Wide 6-24V supply range suits varied DC power sources
  • Flip-flop latch design enables reliable on-off switching

Specifications

No published specifications for this item yet.

Questions about this item

What voltage range does this bistable relay module support?

The module operates on a 6-24V supply and uses a self-locking bistable design with PNP type triggering.

How do I wire the trigger input on this PNP type relay module?

Apply a low-level pulse to the trigger pin; the module latches on and stays on until the next pulse resets it.

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