The 031-80103: The 75 Ohm impedance and 4 GHz frequency ceiling put this squarely in the video, broadband, and baseband data path, not the 50 Ohm world of general-purpose RF test gear.
Cable Fit and Termination Checklist
This plug is built for RG-59, RG-59B, RG-62, RG-140, RG-210, and Belden 8241, 8263, 8279, and 9209 cables. The centre contact crimps onto the centre conductor, the ferrule clamps the braid and jacket, and the shield termination is crimped — no solder, no clamp. The 500-cycle mating life is generous for a field-service connector; the gold-plated centre contact keeps the signal path clean through those cycles.
RF Performance — 75 Ohm at 4 GHz
For a video or broadband signal chain, the 75 Ohm match matters: a 50 Ohm plug on a 75 Ohm cable creates a reflection at the junction. This plug keeps the impedance continuous through the mated pair.