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Miniature pushbutton switches fit avionics displays

Posted: 27 Apr 2009 ?? ?Print Version ?Bookmark and Share

Keywords:pushbutton miniature switch? avionics display? feel tactile?

PBA miniature pushbutton switches

C&K Components has developed the PBA series of miniature illuminated pushbutton switches that feature superior tactile feel suitable for cold lighting and illuminated displays in avionics applications.

"These pushbutton switches feature a robust design including gold plated contacts, IP64 sealing and extended life cycles to 1,000,000 rotations, making them suited for high reliability applications where repair is extremely difficult or impossible," said Gilles Parguey, product manager for C&K. "Coupled with their tactile feedback and availability with a variety of LED colors, the switches are being designed into the illuminated displays on board aircrafts."

The PBA series are available in illuminated and non-illuminated versions, and the illuminated switches are offered with a white, green, yellow green, amber or red LED.

The PBA Series switches feature a plastic housing and cap that meet UL-94 VO approvals. Actuation force is 5.5N 0.5N, with a maximum force of 80N. Travel to contact is 1.2mm 0.1mm, with overtravel of >0.3mm and total travel of 1.5mm 0.1mm.

The gold contact material offers a maximum switching power of 1W, contact resistance of 50? and dielectric strength of 500V rms. Voltage ranges from 20mV to 150Vdc, with a carrying current range of 50?A to 250mA, and a switching current of 50?A to 50mA. Operating temperature ranges from -30C to +85C and bounce time is

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