The Molex 0732250042 is a 2.2/5-series coaxial plug with a male pin contact, part of the 73225 family. The interface is threaded for secure mating, and the body is machined from brass with a tri-metal finish, giving it the corrosion resistance needed for field-installed RF runs. Rated for 50 Ohm systems up to 6 GHz, this plug is built for the 3/8" Super Flex coaxial cable group — a large-diameter, low-loss cable type used in base station, broadcast, and test-equipment interconnects where signal integrity at higher frequencies matters. The PTFE dielectric keeps phase stability across temperature swings, and the silver-plated center contact holds low insertion loss through repeated mate cycles.
This plug is specifically designed for 3/8" Super Flex coaxial cable — a large-diameter, low-loss cable with a semi-flexible jacket. The shield termination is solder-type, meaning the braid is tinned and soldered into the connector body rather than crimped. This gives a solid, low-impedance ground connection at the expense of field rework speed; the joint is permanent once cooled. The center contact is also solder-terminated, so you tin the center conductor, insert it into the pin, and flow solder through the inspection hole. The contact material is brass with silver plating, which provides good RF conductivity and resists oxidation in indoor or sheltered outdoor environments.
The 6 GHz frequency ceiling means this plug handles L-band, S-band, and the lower C-band without significant mode excitation; above 6 GHz the 2.2/5 interface starts to support higher-order modes that degrade the signal. The tri-metal body finish (typically copper, nickel, then a final layer) gives a consistent surface for shield continuity and resists galvanic corrosion when mated with a stainless or brass receptacle. The threaded coupling nut provides a positive stop — over-torquing is still possible, but the mechanical stop prevents the interface from loosening under vibration.
No official cross-reference or direct replacement is on record, so if your BOM calls for this exact order code, the fit is the 2.2/5 interface and the 3/8" Super Flex cable group.