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Tactile Key-Pad Dome Switches from Keystone

August 25, 2020

Keystone Electronics offers a tactile Key-Pad dome switch series that provides positive feedback with an audible and tactile click. The low profile of the dome is ideal for thin, lightweight applications or applications that need to be sealed or easily cleaned. The domes can be activated from finger pressure thru a thin flexible membrane that can be sealed against the product chassis so cleaning fluids, dust or weather will not damage the circuitry.

If the device has a thicker or sculpted exterior package, the dome can be activated with an actuator. The actuator will give the Key-Pad dome a more conventional push button feel.

Key-Pad domes are made from nickel plated stainless steel, which provides a very reliable user interface of more than one million cycles. Key-Pad domes can be placed directly to a PCB, not soldered, which will save on assembly cost and increase reliability. The domes are held in place by using a Key-Pad adhesive spacer (P/N 5200) which requires cut outs to be added in the proper locations. If the top sealing surface has an adhesive bottom side, it will help to keep the dome in the proper location (optional).

The Key-Pad dome is available for almost any application with trip forces ranging from 8 oz. to 14 oz. and dome diameters from 8.4mm to 12.2mm. Trip forces are consistent from switch to switch per batch. This ensures that a switch array will have a consistent feel from switch to switch. Key-Pad domes have a large sweet spot which allows the dome to be easily activated even though it was pushed off center. Gold plated domes are available upon request.

Available on tape and reel for automated pick and place assembly applications, as well as packed stacked in tubes.  For pack stacked in tubes, the contour of the dome keeps an air pocket in between each dome. The air pocket allows only one dome to be picked off the stack eliminating double stacked domes.

  • Rated to 1M+ cycles
  • Material:  Stainless Steel, Nickel Plated
  • Gold plating available
  • Operating Temperature: -40°F to  220°F [-40°C to 105°C]
  • Contact resistance: less then 100 mOhm 
  • Switching Voltage:  0.1 to 100VDC
  • Switching Current: 5 µAmp to 100 mAmp DC
  • Switching Capacity: 1 Watt

 

Tactile Key-Pas Dome Switches

Check Availability

 

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