75 Ohm Self-Terminating BNC Jack — 5414367-2
Unlike a standard BNC jack that leaves an unterminated stub on the bus, this connector terminates the signal path internally at 75 Ohms when nothing is mated to it. That makes it the correct choice for daisy-chained video or telecom signal distribution where an open port would cause a reflection and degrade the signal on the rest of the chain. If your system is built around 50 Ohm coax (common in RF test equipment and cellular infrastructure), this jack will present an impedance mismatch. It belongs in 75 Ohm video paths: broadcast video, CCTV, SDI digital video, and telecom DS3/ distribution panels. Rated to 2 GHz, the connector covers the full baseband video spectrum.
The zinc body with tin finish provides the ground reference; the shield termination is soldered to the board ground plane. A board guide on the connector body helps align it during assembly, and the isolated housing prevents the shield from shorting to nearby components. This is the standard layout for rear-panel I/O on rack-mount equipment where the PCB is parallel to the rear panel.
