SparkFun will be closed Nov 26th and 27th for the Thanksgiving holiday. Orders placed after 2:00pm MT on the 25th will ship out Monday the 30th.

Retired Product

This product has been retired from our catalog and is no longer for sale. This page is made available for those looking for datasheets and the simply curious.

Creative Commons images are CC BY-NC-SA 3.0

Description: It’s the end of the world, and you need a button to press. This is it. A blue economy grade 100mm diameter (outside diameter) dome illuminated push button comes with an LED, securing nut and a long life horizontal microswitch.

Be aware that these are economy grade big dome push buttons, these guys may rattle, have a weaker spring, and may not have as bright of an LED as our standard big dome push buttons. Weak points aside, these buttons still work great and will get the job done.


  • LED indicator light runs at 12VDC
  • Bulb holder is easy to install or remove
  • 3 Terminals Button Actuator microswitch included
  • Microswitch reliability tested to 10,000,000 cycles
  • Microswitch can be replaced
  • Polycarbonate lens cap for optical clarity


  • 100 mm Diameter x 90 mm Height
  • Net weight: 135 grams
  • Mounting hole diameter: 24 mm


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