Switches - Mechanical

Mechanical Switches

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.

 

Mini Pushbutton Switch

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.

$0.25

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Mini Pushbutton Switch - SMD

Code: SKU-000239

Miniature surface mount momentary button. These are great, low-profile momentary switches. Perfect as a tactile reset switch. Rated up to 50mA. Documents: Dimensional Drawing

$1.20

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Mini Slide Switch: 3-Pin, SPDT, 0.3A (3-Pack)

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.

$1.95

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Missile Switch Cover - Red

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.

$2.85

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Momentary Button - Panel Mount (Red)

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.

$1.20

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Momentary Pushbutton Switch - 12mm Square, Clicky

Code: CCW-20144

This momentary pushbutton switch is 12mm square, works well in breadboards and has a nice clicky feel so you know its pressed. Designed for low power use like a reset button.

$0.70

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Rocker Switch - Round w/ Blue LED

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.

$2.40

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Rocker Switch - SPST (right-angle)

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.

$1.45

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Rocker Switch - SPST (round)

Code: SKU-000908

This little round on/off toggle switch is rated up to 10A at 125VAC and can be panel mounted in a 20mm diameter hole. It’ll also look pretty slick in your project. Documents: Dimensional Drawing

$0.60

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Slide Pot - Medium (10k Linear Taper)

Code: SKU-001067

A simple slide potentiometer can go a long way. Rated at 10KOhm and 0.1W. Comes with solder tab connections. The pot has an overall travel of 30mm and has two mounting holes on top. Dimensions: 9.5mm x 45mm Documents: Datasheet (C3031N-1A2-B10K-GP)

$3.00

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