50 Ohm BNC Plug for Instrumentation and Telecom
The 1-1337488-0: It belongs to the Greenpar series, TE's standard BNC product line for instrumentation, test equipment, and telecom infrastructure where signal integrity and repeatable mating matter. The extended insulation feature adds creepage distance between the centre conductor and the shell, which supports the 500 V rating in environments where a standard BNC might flash over.
At 50 Ohm nominal impedance and 4 GHz maximum frequency, this plug is suited for RF signal paths in spectrum analysers, signal generators, and base station test ports. The insertion loss holds at 0.5 dB across the band — that figure includes the transition through the solder cup termination, so the cable prep and centre pin solder joint directly affect the measured loss.
Mating and Mechanical Durability
The bayonet lock mates quickly with standard BNC jacks — a quarter-turn engages the pin and the shell ramps up the mating force. Panel mounting uses the flange with solder shield termination, so the braid is soldered directly to the shell body rather than crimped. The silver-plated brass body and centre contact give low contact resistance at first mate, though silver tarnishes in sulphurous air — in a clean indoor environment it holds; in an industrial shed the mating cycles will clean the interface each time.