Electronic Products & Technology

Receptacles simplifies key switch hot swapping

April 15, 2021  Stephen Law

MILL-MAX 3305-X series of open bottom, low profile, solder mount receptacles are specifically designed to make mechanical key switches hot-swappable. Devices are designed to be soldered into a .060” (1,50mm) minimum mounting hole, with an ultra-thin retention shoulder so plugged-in components sit nearly flush to the board surface. The open bottom design is meant to accommodate varying lead lengths making this a very versatile receptacle. Product series provides three length options of .105” (2,67mm), .130” (3,30mm) and .155” (3,94mm), all with an above-board height of .010” (0,25mm), providing the low profile desired for optimal switch height and functioning. Devices utilize a beryllium copper contact clip to make dependable, low resistance connections with mated leads and maintain those high-quality connec­tions after thousands of cycles (plug/unplug). Devices accept round leads of .025”-.037” (0,635-0,940mm) in diameter as well as square and rectangular leads (.019” – .026” square) – typical of the leads found on most keyboard switches.

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