Gold-plated bellows contacts are an alternative to spring-loaded-test pins for the next generation of high-frequency medical test applications. Contact springs are manufactured from electrodeposited nickel, then gold plated to ASTM-B-488 to enhance conductivity and provide low dc resistance with a minimum of insertion loss. They provide lifetime spring and force repeatability. Contacts are rated for a maximum of 4 amps. Typical bellows have a low loss, only 0.20 dB (shorter) to 0.45 dB (longer) at 6 GHz with a total bandwidth much higher. Length does matter with regard to test pins, so the shorter the part, the better.
Servometer - PMG LLC, 501 Little Falls Road, Cedar Grove, NJ 07009, (973) 785-4630, www.info.hotims.com/18364-263