MCX 75 Ohm End-Launch Jack
This is the less common 75 Ohm variant of the MCX interface — the standard 50 Ohm version won't maintain the impedance match in a 75 Ohm signal path. It mounts at the board edge with an end-launch footprint, meaning the signal pin and shield solder tabs align directly with the PCB edge — no right-angle bend in the signal path. The shield terminates with solder tabs, and the body is brass with gold finish. Rated to 12 GHz maximum frequency with 500 mating cycles, this jack suits repeated field-service connections in video distribution, broadcast, or test equipment where the 75 Ohm line impedance is standard.
This jack is built for 75 Ohm impedance, with the PTFE dielectric and centre conductor geometry tuned accordingly. The 12 GHz upper frequency limit means this connector handles the full L-band through X-band range, covering satellite IF signals, high-definition video links, and broadband data. Below 12 GHz the VSWR stays within the MCX interface specification — the end-launch design keeps the transition clean by avoiding a right-angle signal bend at the board edge.
Snap-On Mate and 500-Cycle Contact Life
The snap-on fastening engages with a push-and-click — no threads to turn, which speeds up mating in a production test fixture or a field swap. The gold-on-gold contact interface (gold-plated centre contact and gold body finish) supports the 500-cycle rating without fretting corrosion. After 500 mates the contact resistance may start to rise, but for most field-service or bench-test duty that cycle count covers years of reconnection.