Amphenol 034-1130-12G — 75 Ohm HD BNC Plug for Belden 4694P
The Amphenol 034-1130-12G is a 75 Ohm HD BNC plug, male pin, designed specifically for Belden 4694P coaxial cable. This is the high-density variant of the standard BNC — the same bayonet-lock interface but with a smaller center pin and tighter dielectric, built for the 75 Ohm video and broadcast signal path. Rated to 18 GHz, it covers HD-SDI and 4K video transport without the impedance bump a standard 50 Ohm BNC would introduce on a 75 Ohm line.
Cable Match and Termination — Belden 4694P Only
This connector is for Belden 4694P — the cable group is listed on the part. The center contact crimps onto the 4694P's center conductor, and the ferrule crimps over the braid and jacket.
What the 18 GHz and 75 Ohm Ratings Mean on the Bench
75 Ohm at 18 GHz — the dielectric and center contact geometry are held to tighter tolerances, maintaining consistent 75 Ohm impedance through the mated pair up to that frequency.