75 Ohm MCX Jack for RF Signal Paths
The 919-124J-71P: It is the through-hole, solder-terminated member of the 91912 base series, with a snap-on coupling that gives a quick, positive lock without threads. The 75 Ohm impedance targets video distribution, broadcast, and telecom RF paths where 50 Ohm would mismatch the line. The white bronze body finish on a brass shell gives a corrosion-resistant mating surface that holds up to 500 mating cycles — suited for test equipment, panel jacks, or field-serviceable radio ports where the connector sees repeated connect-disconnect.
Mating and Termination — What Connects Where
This jack mates with any standard 75 Ohm MCX plug that uses a snap-on latch — the female socket accepts the male centre pin, and the outer shell snaps over the plug body. No BNC or SMA compatibility: MCX is a separate interface with a smaller 2.54 mm (0.100 in) outer conductor diameter. Termination is through-hole solder for the centre contact and shield. No crimp, no clamp — a soldered joint for permanent or semi-permanent installation.