50 Ohm BNC Plug Rated to 4 GHz
The 031-4427: The 0.2 dB insertion loss holds across the band, making this a solid choice for test equipment, instrumentation, and RF interconnect up to the 4 GHz ceiling. The kit ships as three pieces — one connector body, one centre contact, and one ferrule — so a single order code covers the terminated cable-end assembly.
This plug accepts RG-55, 142, 223, and 400 cable groups. The shield termination is crimp; the centre contact can be crimped or soldered. For a field-terminated BNC that holds impedance through the transition, match the cable group listed — the dielectric and centre-conductor dimensions are tuned to 50 Ohm for those types.
Mating Cycles and Contact Plating
The bayonet lock gives a positive quarter-turn mate without tools.