Skip to content
Blog Need Help?

Switches & Relays

Switches and relays are electronic components that are used to control the flow of electrical current in a circuit. A switch is a simple device that has two or more conductive contacts that can be opened or closed to allow or interrupt the flow of electrical current.  Switches are available in many different configurations, including toggle, push-button, rocker, and slide. A relay is an electrically operated switch that uses an electromagnet to open or close a circuit. Relays are used to control the flow of electrical current in a circuit remotely or automatically.

Filters

$
$
Barrel Key Switch - Key Type A - Folders Check ETA
$19.90

Barrel Key Switch - Key Type A

Folders

Supplied with two keys. Specifications: Switch Type Key Pole Throw Type SPST Switch Connection Solder ...

View full details
$19.90 - $19.90
$19.90
$19.90
$19.90 - $19.90
$19.90
Check ETA
Mini Mercury Switch SPST - Folders Check ETA
$8.20

Mini Mercury Switch SPST

Folders

With a robust plastic housing, this switch has a mounting tab - you can screw it down - or use the self adhesive stripsupplied. It has a 30cm ...

View full details
$8.20 - $8.20
$8.20
$8.20
$8.20 - $8.20
$8.20
Check ETA
12V DPDT 5A Mini Relay - Folders
12V DPDT 5A Mini Relay - Folders Check ETA
$7.90

12V DPDT 5A Mini Relay

Folders

- Extra heavy duty mini relay- NO/NC contacts. Specifications: DC Contact Voltage 12V Coil Resistance 400Ω Coil...

View full details
$7.90 - $7.90
$7.90
$7.90
$7.90 - $7.90
$7.90
Check ETA
Waterproof Hoods For Toggle Switches - MINIATURE - Folders Check ETA
$2.70

Waterproof Hoods For Toggle Switches - MINIATURE

Folders

These hoods simply screw over the toggle switch to prevent ingress of water. 2 sizes available. Small suits our mini toggle switches. Large su...

View full details
$2.70 - $2.70
$2.70
$2.70
$2.70 - $2.70
$2.70
Check ETA
IP67 Rated Illuminated Momentary Switch Green - Folders
IP67 Rated Illuminated Momentary Switch Red - Folders
Check ETA
$29.90

IP67 Rated Illuminated Momentary Switch

Folders

IP67 rated for industrial use or other harsh environments. Illuminated, metal body, DPDT, on-off or momentary action.  Specifications: Swi...

View full details
$29.90 - $29.90
$29.90
$29.90
$29.90 - $29.90
$29.90
Check ETA
Ignition coil driver - Folders
Check ETA
$32.90

Ignition coil driver

Folders

Refer Silicon Chip MagazineAdd this ignition coil driver to the KC-5442 Programmable Ignition System and you have a complete stand-al...

View full details
$32.90 - $32.90
$32.90
$32.90
$32.90 - $32.90
$32.90
Check ETA
Multimedia card surface mount mem skt - Folders
Check ETA
$2.17

Multimedia card surface mount mem skt

Folders

Ideal for development and hobbyist applications, or even repairing existing units.

$2.17 - $2.17
$2.17
$2.17
$2.17 - $2.17
$2.17
Check ETA
Check ETA
$13.90

Spare reed switch for la-5150

Folders

Reed Switch Sensor: For LA-5150• Frequency: 433MHz• Transmission range: 150m• Power supply: 2 x AA batteries• Typical battery life: 1...

View full details
$13.90 - $13.90
$13.90
$13.90
$13.90 - $13.90
$13.90
Check ETA
Ic / smart card acceptor - smt spst - Folders
Check ETA
$8.14

Ic / smart card acceptor - smt spst

Folders

For use in designs incorporating the use of Smart Cards / IC Cards. Features internal SPST switch triggered by card insertion. ...

View full details
$8.14 - $8.14
$8.14
$8.14
$8.14 - $8.14
$8.14
Check ETA
6 Way Illuminated Blue Rocker Switch Panel - Folders
6 Way Illuminated Blue Rocker Switch Panel - Folders
Check ETA
$119.00

6 Way Illuminated Blue Rocker Switch Panel

Powertech

Straight forward installation and wiring, with just four connections - everything else is pre-wired! Then all you need to do is connect your vari...

View full details
$119.00 - $119.00
$119.00
$119.00
$119.00 - $119.00
$119.00
Check ETA
SPST PCB Mount Tactile - Vertical & Horizontal with LED - Vertical Green - Folders
Check ETA
$4.50

SPST PCB Mount Vertical & Horizontal with Green LED

Folders

LED SPST PCB tactile switchLED Power Supply: 3.5-4V DC @ 25mAOrientation Colour Cat #Vertical Red SP-0612Vertical Green SP-0613Vertical Blue S...

View full details
$4.50 - $4.50
$4.50
$4.50
$4.50 - $4.50
$4.50
Check ETA
"
"