We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Green circuit board relay module with blue components and screw terminals, 52.8mm by 32mm by 18mm

STCI Tech LTD

STCI Tech LTD 5V Single Bistable Relay Module 10pcs/lot

SKU CH-SMW7-SRPW9

A 5 V bistable relay board that latches on one press and releases on the next, rated for 10 A loads

  • 5 V low-level trigger suits microcontroller projects
  • Bistable self-locking action holds state without continuous power
  • 10 A contact rating handles moderate automotive or hobby loads
  • Compact 52.8 × 32 × 18 mm module fits tight enclosures
  • Built-in LED shows relay status at a glance

5V Single Bistable Relay Module Pack

This lot contains ten 5V single bistable relay modules designed for low-level trigger switching. Each module measures 52.8mm x 32mm x 18mm and uses a TQFP package. They suit hobbyists and technicians building custom control circuits for automotive or general electronics projects. The relay toggles state with each button press and includes an onboard indication lamp.

Check power supply and load before ordering

Verify that your control circuit can provide a stable 5V supply for the module coil. Ensure the connected load does not exceed the 10A maximum working current at the secondary output terminals. Choose between normally open or normally closed contacts to match your wiring design. Confirm there is physical space for the 52.8mm x 32mm footprint inside your enclosure.

Replaces standard momentary relays

These modules upgrade simple momentary relays when a self-locking or toggle function is required without continuous coil power. The jump is worth it for applications like modified car start-stop buttons where the relay must hold state after a single press. They are not suited for circuits needing proportional control or loads above the 10A rating. Buyers who want more channels per board should look elsewhere.

Highlights

  • 5 V low-level trigger suits microcontroller projects
  • Bistable self-locking action holds state without continuous power
  • 10 A contact rating handles moderate automotive or hobby loads
  • Compact 52.8 × 32 × 18 mm module fits tight enclosures
  • Built-in LED shows relay status at a glance

Specifications

No published specifications for this item yet.

Questions about this item

What comes in the 10-piece lot and is any extra hardware needed?

The lot contains ten 5 V bistable relay modules measuring 52.8 mm by 32 mm by 18 mm. Each board has an on-board trigger button, a status LED and solder pads for an external indicator. No additional components are included.

All ten modules appear identical — is there any difference in capacity or version to choose between?

Every module in the lot is the same 5 V single bistable type rated for a maximum of 10 A on the secondary contacts. There are no alternative voltage, current or package options in this listing.

What does the 10 A rating mean when the module is installed in a 5 V circuit?

The relay contacts can switch up to 10 A at the supply voltage you provide. At 5 V this allows control of loads up to the contact limit, provided the connected device does not exceed 10 A.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.