Adafruit STEMMA Non-Latching Mini Relay
100 units available with a short lead time.
The Adafruit STEMMA Non-Latching Mini Relay lets you switch lamps, fans, solenoids, and other small appliances (up to 250 VAC/DC) using any 3V or 5V microcontroller — no soldering, flyback diodes, or level shifting required. Just connect via the JST-PH STEMMA connector and toggle the signal pin high to activate the relay.
The relay features push-in spring terminals for the switched load (24–18 AWG wire) and a red LED indicator when active. It draws approximately 50 mA when the coil is energised and returns to the open (NC) state if power is lost.
Key Features
- Non-Latching Relay – COM connects to NO when signal is high; returns to NC when power is removed
- STEMMA JST-PH Connector – Plug-and-play with 3V or 5V microcontrollers
- Push-In Spring Terminals – Tool-free wire connection for 24–18 AWG
- Red LED Indicator – Lights when relay is active
- Built-In Protection – Flyback diode, level shifting, and pin protection onboard
- Optional Second Switch – Solder pads for a 3-pin terminal block on the side
Switching Capacity
- Up to 2A at 30 VDC or ~40 VAC (resistive load)
- Up to 0.5A at 120 VAC
- Up to 0.6A at 250 VAC
- Up to 0.3A at 110 VDC
- Recommended maximum: 60W for general use
Ideal For
- Switching lamps, fans, and small appliances
- Solenoid and valve control
- Home automation projects
- Circuit Playground and micro:bit projects (with alligator clip cable)
Package Contents
- 1× STEMMA Non-Latching Mini Relay board (assembled and tested)
The Adafruit STEMMA Non-Latching Mini Relay appears in the following collections:
