The TE Connectivity 1274684-1 is a dual-port mini BNC jack — two female 75 Ohm coaxial connectors in a single zinc body with a nickel finish, mounted as a bulkhead through-hole right-angle assembly.
75 Ohm Impedance — Not 50 Ohm, and That Matters
This jack is specified at 75 Ohm impedance. 75 Ohm BNCs are standard for video distribution (SDI, CCTV), broadcast, and some telecom baseband signals.
For a BOM that calls this part, the options are a last-time buy through surplus or broker channels, or a cross-reference to a functionally equivalent dual-port 75 Ohm mini BNC jack from another manufacturer — but that requires verifying the mounting footprint (panel cutout, PCB hole pattern, right-angle orientation, front-side nut).
Termination and Mounting — Solder, Not Crimp
The shield termination is a solder cup or tab for the cable braid; the center contact is a solder cup for the signal wire. This is a field-solder operation — no crimp tool required, but a soldering iron and heat-shrink are part of the assembly process. The connector mounts through a panel hole and is secured with a front-side nut, with the right-angle PCB tails soldered into the board after the nut is tightened.