The TE Connectivity 413631-1 is a 50 Ohm BNC jack, female socket, designed for through-hole right-angle mounting on a PCB. It is a single-port connector with a bayonet lock fastening, rated for 500 mating cycles and a maximum frequency of 4 GHz. The center contact is gold-plated beryllium copper, the body is nickel-plated zinc, and the dielectric is polymethylpentene (PMP). This connector is suited for RF signal applications up to 4 GHz where a reliable 50 Ohm impedance match is required, such as in test equipment, instrumentation, and communication systems.
Key ratings and what they mean
The 50 Ohm impedance is the characteristic impedance of the interface — matching this to the cable and PCB trace impedance is critical to minimize signal reflections at frequencies up to 4 GHz. The 500 mating cycle rating means this jack is built for repeated connect/disconnect in test or field-service environments without degrading contact performance. The gold plating on the center contact (beryllium copper) provides corrosion resistance and maintains low contact resistance over those cycles.
Mounting and termination
Through-hole right-angle mounting places the connector parallel to the board edge, saving vertical space in an enclosure. The shield is terminated by soldering the four ground legs to the PCB ground plane, and the center contact is soldered to the signal trace. The bayonet lock provides quick, secure mating — a quarter-turn engages the coupling nut.