Relay

$0.95 $1.35  
61 pc(s)
These are general purpose, Single Pole - Double Throw (SPDT) sealed relays. Use them to switch high voltage, and/or high current devices. This relay's coil has switch voltage of 3V at 120mA. The contacts are rated 10A at 120VAC, 10A at 30VDC. Features : 3V DC SPDT...

$6.50  
1 pc(s)
This single channel Relay Module is specially designed for low-voltage devices and works well with 3.3V power supply. It can be used to control the lighting, electrical and other equipments through the digital IO port. The module comes with on-board back EMF protection to eliminate the...

$12.50  
1 pc(s)
Your 5V system can wield great power with this big, beefy relay board. How does 10A on the NC contacts and 20A on the NO contacts at 220VAC sound? The SparkFun Beefcake Relay Control Kit contains all the parts you need to get your high-power load under control. Only minimal assembly is...

$22.99  
1 pc(s)
This 16 channels Relay Module can be used to control the lighting, electrical and other equipments through the digital IO port. The digital input circuit is optically isolated from the relay, so your controller is protected from voltage spikes and surges. The module is controlled with 5V...

$15.50  
2 pc(s)
This 10A Relay Module is a little different to the other relays in our store - not only is it compatible with 5V Arduino boards, but also with Raspberry Pi, BBB (BeagleBoard Black), mbed, Intel Joule, Arduino 101 and other 3.3V devices. It is specially designed for low-voltage devices and...

$12.50 $14.75  
2 pc(s)
MOSFETs are awesome. They're like a switch that you flip electronically! This SparkFun MOSFET Power Controller makes it easy to switch a battery supply on and off using your favorite microcontroller. The board also has sewable pads so you can use it in e-textile projects that need more juice....

$1.99  
Out-of-stock
This Single Relay Module can be used to control the lighting, electrical and other equipments through the digital IO port. Applications include solenoid valves, lamps, motors and other high current or high voltage devices. The modules are controlled with 5V signal and they are pre-soldered. A...
Out-of-stock

$3.99  
3 pc(s)
This two channels Relay Module can be used to control the lighting, electrical and other equipments through the digital IO port. The digital input circuit is optically isolated from the relay, so your controller is protected from voltage spikes and surges. The module is controlled with 5V...