MCX 75-Ohm Jack for 12 GHz Signal Paths
The 919-423J-71P12G: That 75 Ohm characteristic makes it a natural fit for video, broadcast, and telecom infrastructure where the transmission line standard is 75 Ohms — not the 50 Ohm more common in general RF.
What the 500-Cycle and Gold Plating Tell You
The gold centre contact plating (over beryllium copper) and gold body finish mean the connector can sit mated in a humid or lightly corrosive environment without the oxide creep that would degrade a tin-plated RF interface. For a test-equipment patch panel or a broadcast rack where connectors get swapped during reconfiguration, the 500-cycle rating gives a solid working life before contact wear starts shifting the impedance.
Through-Hole Solder Termination and Dielectric
That means the installer needs a soldering iron and a clean board, but gets a gas-tight joint that holds its RF performance across temperature cycles. Shield termination is also solder, so the ground path is continuous around the interface — important for keeping the 75 Ohm line from radiating or picking up noise.