Concave Button - Green

This is a 35mm concave momentary push button similar to the ones you find on arcade games. Simple screw in design. Perfect for mashing. This button has a great tactile, 'clicky' feel.

  • Concave plunger design
  • Durable nylon material
  • Microswitch: max 3A @ 120 VAC
  • Microswitch reliability tested to 10,000,000 cycles
  • Includes 3 terminal microswitch
  • Net weight: 25g* Cap diameter: 35mm
  • Overall height: 65mm
  • Mounting hole: 1 1/8th inch paddle bit (1.125" / 28mm)

Concave Button - Green Product Help and Resources

micro:arcade Kit Experiment Guide

July 21, 2017

We love games! We love writing games, building games and yes, even building game consoles. So we want to introduce to you the micro:arcade kit for the micro:bit!

PiRetrocade Assembly Guide

October 28, 2016

Build your very own retro gaming controller with a Raspberry Pi using the SparkFun PiRetrocade Kit!

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: DIY

Whether it's for assembling a kit, hacking an enclosure, or creating your own parts; the DIY skill is all about knowing how to use tools and the techniques associated with them.


Skill Level: Noob - Basic assembly is required. You may need to provide your own basic tools like a screwdriver, hammer or scissors. Power tools or custom parts are not required. Instructions will be included and easy to follow. Sewing may be required, but only with included patterns.
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 #838888 / about 7 years ago / 1

    Can these be used with Arduino or a Teensy circuit?

  • Electricity_Is_Life / about 8 years ago / 1

    I agree that the green is not nearly as bright as in the picture. Very nice buttons though.

  • Skippy / about 11 years ago / 3

    Don't know if it matters to any one, but I just picked up one of these and its not as bright green at it looks (at least on my monitor). Works great, has nice clicky feel. But isn't alien slime green.

  • Member #416310 / about 11 years ago / 1

    I am trying to fine button switches for a firing box for my firework displays. I think I only need a 2 post switch. Do you have to use all three contacts on the back of this switch? I plan on tying all the commons together and then have individual hot(s) going to certain lines going out to the fireworks. With that being said, would I be able to use a button like this for that project?

    • Kamiquasi / about 11 years ago / 1

      You only have to use 2 of the pins. There's 1 common pin and the other 2 are for when you press the button vs when you do NOT press the button - so just make sure you wire the right ones ;) You probably CAN use these, though you might want to check if your firing system uses AC or DC. If it uses DC, you'd ideally want to find the ratings for the switch for DC (tends to be lower than for AC).
      Whether you'd want to use these for a fireworks display is another matter - there's probably more appropriate control boards specifically for the purpose?

      • Member #416310 / about 11 years ago / 1

        Yeah I think this will be more than capable, I am using a DC circuit wired for 6-12V @ 1.5 - 2 Amps. Thoughts?

        • Kamiquasi / about 11 years ago / 1

          That really depends on the switch. As an example, here's a switch ($file/SS-P_1110.pdf ) that is rated for 3A@125VAC - pretty close to this one. However, it's only rated for 0.1A@30V. This one ( ) on the other hand says 3A @125VAC vs 2A@30VDC (depending on model - there's 3 in there with wildly varying ratings).

          Unfortunately there's no datasheet given for this switch. Mind you, it'll probably switch it - it just might wear out (a lot) faster.

          • Member #416310 / about 11 years ago / 1

            Well I am only using this maybe one big show a year and only "switching" the buttons twice during that show, so for the 1.95 do you think it would worth the risk? The DC switches I have found only come in common black whereas I would love to have my channels color coded. Even if I could get 2-3 years out of the switches I would be willing to replace as needed. Again how significant do you think the loss of life of the switch would be?

            Man I wish these came with a spec sheet!

            • Kamiquasi / about 11 years ago / 1

              prooooooooobably, I guess it mostly depends on how the innards behave, but with that little usage I wouldn't really let it bother too much. The worst that could happen is that the plastic catches fire. That's not good, obviously, but hey.. you're there, you're doing a fireworks show, I'm sure you know how to handle fire ;) Slightly less worse is that the switch fails and your fireworks don't go off. You presumably do a dry run first to make sure wiring/switches are all correct before hooking up the igniting elements anyway?
              A datasheet would be nice, regardless - couldn't find one.. did find out these (or buttons that look a lot like it) are very popular in the home arcade scene and come in quite a few more colors.

              • Member #416310 / about 11 years ago / 1

                I will probably roll the dice as is, then worst case senerio if they do fail change my circuit and use an inverter to change the DC power source into a AC curcuit. I will check all switches prior to show time, to make sure all are wired, and working correctly. I will only have to press and hold the button down for a split secound, so I guess I will cross my fingers, I might but just a few and try them over and over before I buy enough to build the entire board.

  • whichpaul / about 11 years ago / 1

    This might be a dumb question, but, do these work with DC?

    • MikeGrusin / about 11 years ago / 1

      They do indeed! The switch itself doesn't care if you're running AC or DC through it. But it's good practice to pay a little attention to the rating.

      For the small logic-level DC voltages and currents you'll typically run through these, the 3A 120VAC rating is more than adequate. But if you ever want to run serious amounts of DC through a switch, do some research on derating AC current levels to DC levels (or find a switch that also has a DC rating). The reason is that high-wattage DC is much more likely to weld switch contacts together than the same AC current and voltage. (This has to do with the fact that AC voltage turns on and off 60 times a second, which helps prevent such welds from forming, but you get the idea).

      Keep asking questions! The more you know. TM

      • Kamiquasi / about 11 years ago / 1

        50 times in some parts of the world, like Australia ;)

        • MikeGrusin / about 11 years ago / 1

          Of course; no offense intended to our friends all over the world.

  • Dirf / about 13 years ago / 1

    While these guys are a bit more expensive then the 33mm convex ones sold here, they're actually a pretty good deal when you consider the fact that the microswitch included with them is over 3/4 the price. You're only paying $0.45 more for the nifty arcade button.

Customer Reviews

No reviews yet.