The 5415373-1: The 75 Ohm characteristic impedance matches RG59 and similar video coax, not the 50 Ohm of RF test cables. Rated to 2 GHz, it covers baseband video and serial digital interface (SDI) up to 3G-SDI comfortably within its frequency ceiling. The bayonet lock gives quarter-turn mating that holds under vibration but releases fast for patch-panel reconfiguration. The right-angle through-hole mounting with panel bulkhead (front-side nut) places the jack perpendicular to the PCB, saving board-edge height in rack-mount equipment.
Obsolete — Sourcing and Replacement Planning
The 5415373-1 is listed as Obsolete. Engineers planning new designs should evaluate current 75 Ohm BNC jacks from TE or other manufacturers that match the panel-mount right-angle footprint and 75 Ohm impedance.
What the 75 Ohm Impedance Means for Your System
This jack mates with 75 Ohm BNC plugs on RG59, RG6, or Belden 1694A cable. A 50 Ohm BNC plug will physically mate but creates an impedance mismatch that causes signal reflections and return loss above a few MHz. For video and precision analog, stick with 75 Ohm on both sides of the connection. The 500 V rating provides generous headroom for video distribution amplifiers and instrumentation front-ends, where signal levels rarely exceed a few volts.