The 2385346-1: It is a straight, in-line adapter with threaded coupling on both ends, designed for millimeter-wave test and measurement, instrumentation, and high-frequency interconnect applications where signal integrity up to 90 GHz is required.
90 GHz Bandwidth — The Rating That Defines the Application
The 90 GHz maximum frequency rating defines the application range for this adapter.
Between-Series Conversion: 1.0mm Jack to 1.35mm Jack
This adapter bridges two different connector families: the 1.0mm (also called 1.0 mm) and the 1.35mm (1.35 mm) series. Both ends are female sockets, so you need male-terminated cables or adapters on each side. The threaded fastening on both ends provides vibration-resistant coupling — important in a test bench where cables get moved and reconnected frequently. The straight body keeps the signal path in line, so the adapter adds no right-angle bend that could degrade the impedance match at high frequencies.
500 Mating Cycles and Build Quality
The gold-plated beryllium copper centre contacts resist corrosion and maintain low contact resistance over many cycles — beryllium copper also provides good spring properties so the socket doesn't lose its grip on the mating pin. The stainless steel body adds mechanical robustness and resists the galling that can occur with aluminium-bodied adapters under repeated threaded coupling.