Adafruit Latching Mini Relay FeatherWing

The Adafruit Latching Mini Relay FeatherWing is an expansion board designed to control power to small appliances such as lamps, fans, and solenoids, compatible with any Feather board. It supports switching up to 2A of resistive current at 30VDC or approximately 40VAC, with reduced current capacity at higher voltages. Unlike non-latching relays, this latching relay uses two pins - SET and UNSET - pulsed for 10ms each to latch the relay on or off, saving power as the pins do not need to remain high. The relay remains in the last state even if power is lost.

This FeatherWing comes fully assembled and tested, with a pre-soldered terminal block for easy wiring. It requires light soldering and uses Feather stacking headers or female headers for connection. The PCB has been updated with a pre-soldered terminal block and clear silkscreen for ease of use.

Important Notes: Use caution when working with high voltages over 24V. This product is intended for experienced users comfortable with safety guidelines.

• Controls appliances up to 250VAC or DC power
• Latching relay using SET and UNSET pins
• Switching capacity: 2A at 30VDC, lower at higher voltages
• Power-saving operation, relay state maintained during power loss
• Fully assembled, includes 3-pin terminal block
• Compatible with Feather boards using stacking or female headers
• Product dimensions: 50.8mm x 22.9mm x 11.4mm (2.0" x 0.9" x 0.4")
• Product weight: 6.4g

Learn more and access technical resources at the Adafruit Mini Relay FeatherWings Learn Guide.