STEMMA plug-and-play parts make your next project soldering-free! This is the STEMMA Non-Latching Mini Relay. It gives you power to control, and control over power. Put simply, you can now turn on and off lamps, fans, solenoids, and other small appliances that run on up to 250VAC or DC power using any microcontroller or microcomputer, with ease.

No worrying about flyback diodes, level shifting, pin protection. The STEMMA board takes care of all that for you. You can use it with any 3V or 5V microcontroller/microcomputer.  To use with a breadboard, Raspberry Pi or Arduino, pair with a JST 3-pin to breadboard cable. If you want to use with a Circuit Playground or micro:bit, we have a cable with alligator clips.

  • This  board has a single Signal pin (the white wire). Normally, the relay's COM pin is connected mechanically to the NC pin and the NO pin is disconnected.
  • When the Signal pin is pulled high, the relay switches and the internal switch changes so that the COM pin is mechanically connected to the NO pin and NC is then disconnected
  • When the relay is active, a red LED is lit, and about 50mA of current from the red power wire is used to keep the coil switched on. Note, if power is lost, the relay will go back 'open'.
  • The connects for the relay are the white tubular thing at the far end of the PCB. You can poke wire into the holes, they will automatically grip onto wire that is 24AWG to 18AWG. Once you poke the wire in, give it a light pull to verify its clamped. To release the wire, use a thin screwdriver or pen to press on the button on the top while pulling the wire out.

You can switch up to 2A of resistive current at 30VDC or ~40VAC or lower. At 110VDC you can switch up to 0.6A, at 120VAC up to 0.5A, and at 250VAC you can switch up to 0.3A. Check the datasheet for the relay for the exact switching capacity, and of course, for reactive/inductive loads you will need to de-rate. This isn't a relay you can use to turn on and off your washer/dryer, stick to 60W or less.

Each STEMMA board comes with a fully assembled and tested PCB but no cable. No soldering is required to use it. There's an optional second switch on the side of the PCB, if you get a 3-pin terminal block you can solder that in place, but it's optional.

Please note: If using with high voltages (> 24V) use care and common sense! High voltages require experience, and are only for use by engineers who are comfortable with guidelines and know how to use safely!


Technical Details:

  • Assembled dimensions: 34.3mm x 21.6mm x 11.3mm

Revision History:

  • As of May 24, 2023 – we've updated this PCB with Adafruit Pinguin to make a lovely and legible silkscreen

Package Includes:

  • 1 x Adafruit 4409 STEMMA Non-Latching Mini Relay - JST PH 2mm

Write a review

Please login or register to review

Adafruit 4409 STEMMA Non-Latching Mini Relay - JST PH 2mm

  • Brand: Adafruit
  • Product Code:NR-Ada-4409-STEMMA
  • Reward Points:8
  • Availability:In Stock
  • रo 750.00

  • Price in reward points:791

  • 45 or more रo 657.00
  • 205 or more रo 654.00

Related Products

Adafruit 5718 Tough Relay from Digital Loggers

Adafruit 5718 Tough Relay from Digital Loggers

Tough Relay combines the features of a durable power relay, AC current monitor, circuit breaker, ene..

रo 6,740.00

Adafruit 2923 Latching Mini Relay FeatherWing

Adafruit 2923 Latching Mini Relay FeatherWing

A Feather board without ambition is a Feather board without FeatherWings! This is the Latching Mini ..

रo 858.00

Adafruit 2895 Non-Latching Mini Relay FeatherWing

Adafruit 2895 Non-Latching Mini Relay FeatherWing

A Feather board without ambition is a Feather board without FeatherWings! This is the Non-Latching M..

रo 858.00

Adafruit 3191 Power Relay FeatherWing

Adafruit 3191 Power Relay FeatherWing

A Feather board without ambition is a Feather board without FeatherWings! This is the Power Relay Fe..

रo 1,074.00

Adafruit 3893 / 3894 STEMMA JST PH 3-Pin to Male Header Cable / Female header sockets - 200mm

Adafruit 3893 / 3894 STEMMA JST PH 3-Pin to Male Header Cable / Female header sockets - 200mm

This cable will let you turn a JST PH 3-pin cable port into 3 individual wires with high-quality 0.1..

रo 135.00

Adafruit 5892 STEMMA Analog SPDT Switch - MAX4544 12V - JST PH 2mm

Adafruit 5892 STEMMA Analog SPDT Switch - MAX4544 12V - JST PH 2mm

Analog switches are a solid state alternative to relays, when you want a smaller, lower-power techno..

रo 642.00

Tags: Adafruit, STEMMA, Non-Latching, Mini Relay

The product is currently Out-of-Stock. Enter your email address below and we will notify you as soon as the product is available.

Name
Email
Phone
Comments