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C&K has introduced two new sub-miniature tact switches aimed at design engineers developing home automation and IoT devices.

Competitively priced, the new PTS526 switch has a 5.2mm x 5.2mm footprint and an adjustable thickness of between 0.8mm and 2.0mm. The PTS636 switch has a 6.0mm x 3.5mm footprint and an adjustable thickness of 2.5mm, 4.3mm or 5.0mm. These single-pole, single-throw switches provide a large actuation surface for easier integration into the host system.

Both the PTS526 and PTS636 switches are supplied in surface-mount packages. The PTS636 is also available in a through-hole format. The switches use a hard actuator, ensuring that it can be fully integrated into standard production processes with no need for an additional interface button, reducing time and costs for the end equipment manufacturer.

The PTS636 series includes a 2.5mm-height version with an integrated Ground pin. The PTS526 is also available with an integrated Ground pin.

The PTS636 is available with four different operating-force options: 130gf, 180gf, 250gf and 320gf. Users of the PTS526 can choose from three actuation-force options: 160gf, 250gf and 320gf.

Operating lifetime is rated at 100,000-500,000 cycles for the PTS526, and at 20,000-100,000 cycles for the PTS636.


  • 12V DC maximum voltage
  • 50mA maximum current
  • 250V AC dielectric strength
  • ≤100mΩ initial contact resistance
  • ≥100MΩ insulation resistance
  • ≤10ms bounce time
  • Operating-temperature range: -20°C to 70°C
  • IoT devices
  • Home automation
  • Remote controls
  • E-cigarettes
  • Drones
  • E-bikes
  • Robotic vacuum cleaners


C&K: No additional interface button

C&K: No additional interface button


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