Rocker Switch - SPST (round)

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.

Rocker Switch - SPST (round) Product Help and Resources

SparkFun 5V/1A LiPo Charger/Booster Hookup Guide

September 28, 2017

This tutorial shows you how to hook up and use the SparkFun 5V/1A LiPo Charger/Booster circuit.

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.
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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 #87769 / about 12 years ago / 2

    Round = easy? Well, sorta. That's larger than 3/4", is metric, and a regular drill that large is a bit dicey in a panel. Most of us would drill it 3/4", cuss when the hole wasn't round, then file it out to ~0.79" (20 mm).

    To make it easy, stop by that auction site and get a set of metric step drills for about 30 bucks. Step drills are far better than standard twist drills in sheet metal and aluminum or plastic panels.

    In fact, imperial and metric step drills would be good products for Sparkfun to sell.

  • Quazar / about 12 years ago / 1

    Round = Easier to mount using just a drill! Any idea what the DC current/voltage ratings are?

    • pubdc / about 12 years ago / 1

      Picture shows 6A @250V, 10A @ 125V, and yes I second: round mounts easily !

      • Pyrofer / about 12 years ago / 2

        And as Quazar said, I wonder what the DC ratings are...

        • Quazar / about 12 years ago / 1

          Looks like the COM-11155 (see Related Products below) is the one to get for DC switching (16A @ 12VDC)

Customer Reviews

4 out of 5

Based on 3 ratings:

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Round switch

Good quality round switch, easy to install due round package and spade connectors (5mm wide ones), no soldering required. There is small notch that must be taken account during installation, but that's good to leave as it is, prevents switch spinning around in hole. Also, 6A/250VAC, not well seen from picture.

Nice little guy.

A very tactile, stable, and satisfying switch I've used in several projects. However, I've never been able to install this in a 20mm hole without breaking off the bits on the side with a pair of pliers? Is there some trick I'm missing here?

Sorry, I'm not familiar with any tricks. You might size up your hole slightly, though too much and you might end up with a loose fitment. Sorry I don't have any better tips. Happy hacking!

Nice and Easy...but...

This is a great little AC rated switch - no frills. Easy to put in a box because you just drill a round hole - then cut a little notch in the side of the hole for the key (on the other side of the switch in the photo) with a little file. Be advised, this baby can be a little stiff! But all in all a great value for the price!