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Rotary switches offer contact resistance of 100mΩ

Posted: 03 May 2010     Print Version  Bookmark and Share

Keywords:rotary switch  laser  control system 

RTE DIP switches

C&K Components has developed a RTE series of DIP switches that improve marking visibility via a laser marking, which provides light characters on a dark background, resulting in a high contrast level. The coating features high adherence, along with ageing and corrosion resistance.

The switches feature SPDT, SP3T and SP4T rotary functions as well as rotary binary-decimal and hexa-decimal coding. Designed to withstand an accelerated life test of 3,000 hours at 150°C (the equivalent of 20-year usage), the RTE HR DIP switches feature special whisker-free contact plating for increased reliability. The extended life HR version of the switch is available upon request.

Typical applications for the RTE series DIP switches include timers and automation components, computers and peripherals, alarm and access control systems, and instrumentation equipment.

"The RTE Series DIP switches are available in two versions, with the RTE B switches featuring markings with improved contrast; while the RTE HR switches provide increased reliability to enable them to withstand ageing tests that are the equivalent of 20-year usage," said Eric Grange, product manager for C&K Components. "In addition to solving these industry challenges of improved contrast marking and lifespan, the RTE series switches also feature a wider variety of positions as well as coding, shaft and termination combinations for increased versatility."

The RTE series DIP switches are available with gold- or silver-plated contacts. Maximum contact rating for the gold-plated switches is 100mA @ 30V DC, while the silver-plated contacts feature a contact rating of 100mA @ 50V DC. Maximum contact resistance is 100mΩ. Mechanical life is 1,500 actuations for the two- and three-position RTE switches and 20,000 actuations for the four-, 10- and 16-position DIP switches. The switches are RoHS-compliant and feature an operating temperature range of -25°C to +85°C. The low-profile DIP switches measure 8mm x 7.4mm x 4.25mm high.





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