Surface mount tactile switches offer small footprint

16th July 2014
Nat Bowers

Offered with a range of actuation forces and extended operating lifecycles, a series of surface mount top-actuated tactile switches has been announced by C&K Components. Housed in a 6.3x6.3x5.0mm package, the KSH series SPST (single-pole, single-throw) top-actuated switches have a "soft touch" tactile feel (according to the manufacturer).

Available with a range of operating force ratings (1.6, 2.0, 2.5, 3.0 and 3.5N) and a travel distance of 1.3mm, the KSH series switches operate over a temperature range from -40 to +90°C and have an life of 200,000 cycles (up to 3.0N operating force). Contacts are rated for 10µA (minimum) to 50mA (maximum) and 2V DC (minimum) and 12V DC (maximum).

Jerome Smolinski, Senior Product Manager, C&K Components, commented: "The KSH series switches represent an economical alternative to rubber keypads, since they can be mounted using standard pick-and-place assembly equipment. The switch incorporates a high-grade silicone that delivers consistent tactile ratios over the operating lifecycle, and the moving contact design eliminates the carbon pill intermediate, giving the switches a stable contact resistance. With an operational lifecycle more than twice that of competitive devices, the KSH series switches are ideal for automotive interiors and AV systems, as well as electronic musical instrument applications."

Available in two-terminal and four-terminal styles, the KSH series tactile switches are sold in 1,000 unit tape-and-reel packaging. Engineering samples of both the KSH2 and KSH4 series are currently available, with production volumes scheduled for 2015.

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