The TE Connectivity 2385341-1 is a between-series RF adapter that converts a 1.35mm jack (female socket) to a 1.85mm plug (male pin). It is a straight, free-hanging (in-line) adapter built for millimeter-wave signal paths up to 67 GHz. The 50 Ohm impedance matches standard RF test and instrumentation systems — this is not a 75 Ohm video adapter. The stainless steel body provides the mechanical rigidity needed to maintain phase stability at V-band frequencies, while the gold-plated beryllium copper centre contacts handle repeated connect-disconnect cycles without degrading contact resistance.
67 GHz Bandwidth and 500-Cycle Life
The 67 GHz maximum frequency rating places this adapter in the upper millimeter-wave band, covering the full V-band (50-75 GHz) and the upper edge of the U-band (40-60 GHz). At these frequencies, the interface repeatability matters more than the raw loss figure — the threaded, threaded fastening type locks the mated pair to a consistent torque, eliminating the phase shift that a push-on connector would introduce. The 500 mating cycles are driven by the gold-over-beryllium copper contact system: beryllium copper provides the elastic spring force to maintain normal force after hundreds of mates, and the gold plating prevents oxidation on the mating surface. For a test bench adapter that gets cycled daily, 500 cycles translates to roughly two years of service before the contact resistance starts to drift.