Mini Power Switch - SPDT

Simple SPDT slide switch. Rated at 30V/200mA. The pins have .1" spacing - fits great into a breadboard! Use it as a power switch or general control switch.

Mini Power Switch - SPDT Product Help and Resources

Flashlight Kit

October 11, 2018

This is an assembly guide for the SparkFun Flashlight Kit, a basic learn to solder kit.

Experiment Guide for the Johnny-Five Inventor's Kit

June 28, 2016

Use the Tessel 2 and the Johnny Five Inventors kit to explore the world of JavaScript enabled hardware through 14 awesome experiments!

Beginner Parts Kit Identification Guide

March 22, 2019

The essential parts for beginning (or even experienced) hobbyists that gives you all of the basic through-hole components you will need to get started playing with embedded projects. We'll identify a few parts in the kit and provide a few basic circuits to get started!

SparkFun Inventor's Kit Experiment Guide - v4.0

November 15, 2017

The SparkFun Inventor's Kit (SIK) Experiment Guide contains all of the information needed to build all five projects, encompassing 16 circuits, in the latest version of the kit, v4.0a.

DIY Light Sculpture

August 23, 2018

In this digital fabrication project featuring 3D printing, laser cutting, and DIY electronics, you will build a beautiful design object for your desktop or night stand.

SparkFun Inventor's Kit Experiment Guide - v4.1

August 8, 2019

The SparkFun Inventor's Kit (SIK) Experiment Guide contains all of the information needed to build all five projects, encompassing 16 circuits, in the latest version of the kit, v4.1.2 and v4.1.

Button and Switch Basics

May 7, 2013

A tutorial on electronics' most overlooked and underappreciated component: the switch! Here we explain the difference between momentary and maintained switches and what all those acronyms (NO, NC, SPDT, SPST, ...) stand for.

Core Skill: Soldering

This skill defines how difficult the soldering is on a particular product. It might be a couple simple solder joints, or require special reflow tools.

1 Soldering

Skill Level: Noob - Some basic soldering is required, but it is limited to a just a few pins, basic through-hole soldering, and couple (if any) polarized components. A basic soldering iron is all you should need.
See all skill levels

Core Skill: Electrical Prototyping

If it requires power, you need to know how much, what all the pins do, and how to hook it up. You may need to reference datasheets, schematics, and know the ins and outs of electronics.

1 Electrical Prototyping

Skill Level: Noob - You don't need to reference a datasheet, but you will need to know basic power requirements.
See all skill levels


Looking for answers to technical questions?

We welcome your comments and suggestions below. However, if you are looking for solutions to technical questions please see our Technical Assistance page.

  • Member #1628346 / about 2 years ago / 1

    Anybody aware of how many cycles these are rated for?

  • Maxturbo211 / about 14 years ago / 6

    ahh, sparkfun. you're all breadboard and pcb friendly, yes, but when will you realize that you need through mount-screw in and screw-on (like with a screw over the whole switch/potentiometer) spdt switches, rotary encoders, and potentiometers... in practical applications most of these interface devices need to be mounted flush with the face of an often-used surface (not a breadboard) and hot glue doesn't cut it holding those in those cases. you need hardware mounting solutions... sad but the local radio shack is beating you on this field. please get some in!

  • Member #625649 / about 9 years ago / 1

    so where is this on the eagle library... Thanks!

    • Kamiquasi / about 9 years ago / 1

      I would check out the earlier comment regarding how to find parts in Eagle - should be able to find it that way :)

      ( There's a comment below that suggests it may not be the right Eagle part for this switch - but as far as I can tell, it should be fine. Perhaps it was incorrect 3 years ago though :) )

      • Member #625649 / about 9 years ago / 1

        Thanks! It helps quite alot but it would be a lot nicer if Sparkfun included more product ids on their library. I know they are definitely trying and if there's anyway I could help I definitely would.

        • Kamiquasi / about 9 years ago / 1

          I definitely agree with that. They do keep all of their libraries in a Github repository:
          You could add product IDs to the libraries and issue a pull request. Though my earlier mistake shows why that would require careful scrutiny as well.

  • I am pretty sure this is the Datasheet: Part: EG 1218

    • Its funny I searched for hours for the right sized switch and eventually found this one at mouser, then just found it here. This is literally the only size that will fit in my project, which runs 5v @ 2-3A (Spiky from led-strips). lol Ill make sure to tell you how it goes, but I did find an old tiny switch just like this that couldn't of had a higher rating and it worked fine. Absolutely no problems. Though this wouldn't work for a constant high amperage

  • Member #200027 / about 12 years ago / 1

    Your eagle library has this part (com-00102) put it's definitely not this switch!

  • (Redundant post - also at #9609)
    Could this be used with 9v at ~600 mA? I'm building a personal fan prototype with my mini breadboard (stuck to a foam block from the maglev train kit me and my friend used for NY SciOly xD) and I need either this or the other one here...

    • Should be fine. As long as your overall power remains the same (9 x 0.6 < 30 x .2)

      • Kevin Vermeer / about 12 years ago / 1

        Um, no. This is not a resistor which is dropping 9V or 30V, it's a switch which must be able to block 30V of DC when off (which is tiny BTW), not destructively arc when used as an interrupt, and not melt due to power dissipation when on.

        With specs this tiny on a physical switch, you might never see a failure operating at 9V/600mA, but, as a general rule with switches, the voltage rating is independent of the current rating.

        • Member #326474 / about 10 years ago / 1

          Similar logic applies to mosfets, FYI. [not to jump on the 3yr old bandwagon. I don't think these threads notify though, so I'm not bothering anyone hopefully.)

  • williams / about 13 years ago / 1

    Can you get a switch with higher amp load. Like some stepper drivers can go 38V 4amps per phase.

  • tz / about 15 years ago / 1

    It appears to be an MMS1208 from APEM

    • red913 / about 9 years ago / 1

      Nope, it's an E-switch eg1218. Says so in their dimensional drawings.

  • tz / about 15 years ago / 1

    Are these "stackable", i.e. you can put a number them next to each other on a 0.1 inch grid?

  • Marttyn / about 15 years ago / 1

    Datasheet for this part? Or reference number to search it?

Customer Reviews

No reviews yet.