Mechanical switches are one of the most common electrical devices as they allow power to be turned on or off.
Switches are rated for the amount of current and voltage they are suitable for. For switching low power and low currents like using a switch as an input to a microcontroller just about any switch will do. When using a switch to control power from a battery or turn a motor on then care should be taken to ensure the switch is rated to the expected current. For high power uses an electronic solid state switch can be better.
Mechanically switches are varied. Momentary switches are either on or off while you hold them like buttons while others will maintain the state until switched back like toggles or sliders. Like relays, switches can be SPST (single pole single throw), DPDT (double pole double throw) or lots of other variations.
Code: SKU-001214
This is a perfect choice if you are in need of a heavy duty push button! These metal push buttons are a very tough, small, panel-mount momentary switch with an illuminated white LED ring. It is a SPDT with 16mm threading and 1mm pitch. This button is perfect for basic On/Off functions. More Details...
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Code: SKU-001956
This is a 3-terminal microswitch two pack, each equipped with a 20mm offset lever actuator. These switches have a great ‘clicky’ sound to them with a nice tactile feel and are perfect when used for a slider, 3D printer, or robot project. Each microswitch is rated for 5A at 250VAC. More Details...
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Code: SKU-000007
Single Pole Single Throw SPST push button switch which a nice tactile click. The switches fit well into a breadboard and are rated for up to 50mA. More Details...
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Code: SKU-002571
These small, two-pin, momentary tactile buttons are intended for mounting to PCBs, but they can also be plugged into standard 0.1" breadboards. They work well as reset buttons and can be connected to microcontroller inputs to serve as a user-interface components. More Details...
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Code: SKU-002574
These small single-pole, double-throw (SPDT) slide switches are rated for 300 mA at 50 VDC and make great on/off power switches for low power electronics. They can also be used as a convenient way to choose between two analogue or digital input signals. More Details...
Code: SKU-005210
This miniature single-pole, double-throw (SPDT) momentary switch can be used as a general-purpose micro switch or as a small tactile bump sensor for your robot. The switch body dimension is 12.8 × 6.0 × 6.5 mm, and the lever arm is 13.5 mm long. More Details...
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Code: SKU-000372
It’s not what project you have in mind that may use a rocket launch switch… The question is what project will you come up with once you have one in hand? Everyone has a proverbial missile to launch. The hot red safety cover protects a toggle switch from accidentally being turned on. More Details...
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Code: SKU-001223
It’s your basic red action button! This is a very useful, small, panel-mount momentary switch. It is a SPST N.O. with the threaded portion being 6.75mm in diameter. This button is perfect for basic On/Off functions. Overall length (including leads) is 1.06" and has small solder lugs for connection. More Details...
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Code: SKU-000915
These panel-mounting rocker switches have built-in indicator lights to let you know when your switch is engaged. They mount into a 20.2mm diameter hole and are rated up to 16A @ 12v. More Details...
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Code: SKU-000256
Your project will probably need an on/off switch. If you plan to house the project in an enclosure, we found this great rocker switch to help you out. RoHS and UL approved. More Details...
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