1.27 mm pitch connectors are reliable for military and aerospace applications

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"Thanks to special material selection, manufacturing and heat treatment technology, TwistPin contacts withstand stress relaxation for up to 1,000 hours at 125°C," according to Powell Electronics, which stocks connectors. “Micro-D devices available in insulated and non-insulated wire, PCB, solder cup and flexible terminals, such as QPL or commercial variations, provide a reliable solution for connection requirements including high temperature and sealing applications.”

Contact capacity is 3A continuous over an operating range of -55 to +150°C, and the dielectric can withstand 600VAC at sea level and 150VAC at 70,000ft (~20km). Contact resistance is 8 mΩ max. (EIA-364-06) or 32 mΩ max. (low level, EIA-364-23). The service life is expected to be 500 connection cycles.

For RFI/EMI shielding, an attenuation of 65 dBh (EIA-364-66) is expected with a metal shell and ground spring.

Source: electronicsweekly.com

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