SMB Fakra Jack for 3 GHz Coax Runs — 50 Ohm, Code C Keying
The 3FA1-NCSJ-C04W0: It's the Code C variant in the Fakra family — the keying and blue housing color prevent cross-mating with other Fakra codes in multi-connector harnesses. The latch lock fastening gives a positive click when fully mated — you feel it seat.
Cable Prep and Crimp — What It Takes
The compatible cable groups are RG-58, 58A, 58B, 58C, 141, 303, LMR-195, Belden B7806A, and 9907 — that covers the common 50 Ohm small-diameter coax you see in GPS antennas, cellular modems, and short RF jumpers. You'll need the correct crimp die for the cable OD and the center contact size — don't guess the hex size.