The 413558-2: Rated to 2 GHz, it covers the full bandwidth of composite video, baseband digital video, and legacy telecom distribution.
What the 75 Ohm Rating Means for the System
75 Ohm is the standard impedance for video and broadcast — SDI, composite, and distribution amplifiers all run on 75 Ohm coax. A 50 Ohm BNC in a 75 Ohm path creates a reflection at the junction that eats into the signal margin, especially above 500 MHz. The 413558-2 matches the cable and system impedance, so the return loss stays clean up to the 2 GHz ceiling.
Through hole, right angle mounting — the jack sits perpendicular to the PCB, with the bayonet lock facing the board edge for cable access. The shield terminates by soldering to the board ground plane; the center contact is solder-cup for the coax center conductor.
