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Description: 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)

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Customer Comments

  • This is a knockoff of the Happ competition button. I have found that plunger doesn’t always hit the microswitch when pressed on the edge opposite the switch contact.

  • What size quick disconnect cables would you recommend using with these? OR do you recommend soldering a wire directly to the terminals?

  • Does any one know the impedance of the PB and if there is a built in capacitor?

  • It is totally useless as the locking nut can not be removed over the switch so it can be inserted in a panel hole

    • You can remove the switch. This guy demonstrates it at the start of this instructable:

      • For those who don’t like to follow links, the process is simple. You simply pry away the longer tab (quite visible from the second pic) and rotate the switch along the other tab. You should be able to then simply remove the microswitch, giving enough room for the button to fit through holes, and to get off the nut.

  • 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 ¾ the price. You’re only paying $0.45 more for the nifty arcade button.

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