50 Ohm BNC Jack for Panel-Mount RF Runs Up to 1 GHz
The 031-5486: It mounts through a panel bulkhead with a front-side nut and carries a right-angle PCB tail for solder termination — the 90° exit keeps the cable close to the board plane in tight enclosures. Body is zinc die cast with nickel finish; dielectric is polypropylene, which holds the 50 Ohm impedance stable across the band.
Sizing the Mount and the Signal Path
Rated 500 V and 500 mating cycles — the voltage limit is the air gap at the interface, not the dielectric; the cycle count is driven by the gold-on-phosphor-bronze contact pair, which handles regular reconnects in test or field-service gear without the contact resistance drifting. The board guide and isolated features help align the connector during panel installation and keep the shell from shorting to adjacent circuitry. The right-angle termination means the signal pin exits the PCB parallel to the board — plan the trace from the launch pad to maintain the 50 Ohm characteristic impedance through the transition.
What Crosses When the Original Is Dry?
The 031-5538-10RFX shares the same BNC jack form, 50 Ohm impedance, 1 GHz bandwidth, 0.2 dB insertion loss, and 500-cycle gold-plated phosphor bronze contact. The difference is the housing color (black and silver vs silver and white) and the addition of a board lock feature on the 031-5538-10RFX for extra PCB retention. If the 031-5486 is on allocation, the 031-5538-10RFX is a functional swap — same electrical performance, same panel-mount bulkhead fit, same solder termination. The 31-5431 is electrically identical but lacks the board lock and features variation; it's a straight parametric match for the 031-5486.