RF Interconnect for Tight Spaces: MCX Jack on RG-178
The 500-cycle mating life is typical for a snap-on MCX; the gold plating on both body and centre contact resists fretting corrosion through repeated connects in field-service or test-bench use.
Cable and Termination Match
This jack is specified for cable groups RG-178, 178A, 178B, 196, 196A, and M17/93-RG178 — all 50 Ohm coax with a similar dielectric diameter. The shield is terminated by crimp, the centre contact by solder. For a harness shop, that means a standard crimp tool for the braid and a soldering iron for the pin; no special die sets beyond the usual RG-178 hex crimp. The free-hanging mount means no PCB footprint to design — the cable assembly lands in-line, which simplifies routing in enclosures where a right-angle board jack would force a bend radius violation.
The base product number is 91913, which covers the MCX series variants from Amphenol RF.