The Amphenol RF 034-1017-12G is an HD-BNC plug — a 75 Ohm bayonet-lock connector built for precision video and broadcast signal paths. It's the male pin version, meaning it terminates onto the cable and mates with a female jack on a panel or bulkhead. The HD (High Density) BNC interface packs more connectors per rack unit than standard BNC while keeping the same 75 Ohm impedance and bayonet coupling feel. This plug is specced for Belden 1694, 1694A, and 9248 cables — the common 75 Ohm precision video coax — so if you're building a broadcast camera run or a router-to-patch-panel harness, this is the right termination end.
The cable group is explicitly Belden 1694, 1694A, and 9248; those are 75 Ohm precision coax with a solid or stranded center conductor and a foam dielectric. The PTFE dielectric inside the connector matches the cable's impedance profile, keeping the 75 Ohm line clean through the interface. The brass body gets a nickel finish, which holds up to repeated handling on a patch bay or camera connector panel.
Signal Ceiling and Cycle Life
Rated to 18 GHz, this HD-BNC plug covers the full 12G-SDI bandwidth.
Both are 75 Ohm, 18 GHz, male pin plugs with nickel brass bodies and gold center contacts. The difference is the cable group: the 034-1017-12G is built for Belden 1694/1694A/9248, while the 034-1107-12G targets Belden 1855A and 4855R. The 1855A is a smaller-diameter, lighter-weight cable than 1694A — so the decision between these two plugs comes down to which coax you're running in the harness. The 034-1107-12G also ships with an extra insulator in the kit (4 pieces vs 3), but the termination method and RF performance are identical.