Soft Touch SMT Tactile Switches
C&K Components has developed a series of surface mounttop-actuated tactile switches with a range of actuation forces and extended operating lifecycles. Both two-terminal and four-termina styles are housed within the same 6.3mm x 6.3mm x 5.0mm package. The KSH Series tactile switches are RoHS-compliant SPST (single-pole,single-throw) top-actuated surface mount devices with a "soft touch"tactile feel and a range of operating force ratings (1.6N, 2.0N, 2.5N,3.0N and 3.5N) with a travel distance of 1.3mm. Contacts are rated for50mA / 10µA (min. / max.) and 12VDC / 2VDC (min. / max.), with anoperational life of 200,000 cycles (up to 3.0N operating force).Operating temperature range is -40°C to 90°C.
"The KSH Series switches represent an economical alternative to rubberkeypads, since they can be mounted using standard pick-and-place assembly equipment," said Jerome Smolinski, Senior Product Manager at C&KComponents. "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 these 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 music linstrument applications. "The KSH Series tactile switches are sold in 1,000-piece tape-and-reelpackaging. Engineering samples of both the KSH2 and KSH4 Series are currently available.
- range of actuation forces and extended operating lifecycles.