The TE Connectivity Greenpar 1-1478051-0 is a BNC jack with a female socket interface, designed for 75 Ohm impedance systems. This is the defining characteristic — it is not a standard 50 Ohm BNC, so it belongs in video distribution, CCTV, broadcast, or telecom equipment where 75 Ohm signal paths are required. The connector is rated to 2 GHz maximum frequency, which covers the full bandwidth of standard-definition and high-definition analog video, as well as many telecom baseband signals. A bayonet lock provides quick connect/disconnect with positive retention — the coupling nut engages with a quarter-turn and the lock is audible when fully seated.
This jack mates with any standard 75 Ohm BNC plug that has a male centre pin and bayonet coupling nut. The female socket accepts the male centre contact of the mating plug. Termination is through-hole solder on both the centre contact and the shield — the centre pin solders into the PCB, and the shield legs solder to the ground plane. The dielectric material is PTFE, which provides stable impedance up to 2 GHz and handles the full temperature range without degrading.