Panel-Mount SMB/Fakra Plug for RG-58 and LMR-195 Cable
The FA1-NBSP-C04-1: The locking ramp fastening gives a positive snap-on mate with either an SMB jack or a Fakra receptacle, making this a dual-interface part that simplifies inventory for harnesses that cross between the two standards. The cable group covers RG-58, 58A, 58B, 58C, 141, 303, LMR-195, Belden B7806A, and 9907 — the common 50 Ohm flexible and low-loss cables used in automotive telematics, GPS antennas, and short-run RF interconnects.
Cable Selection and Crimp Assembly
Pick the cable from the supported list — RG-58 for general-purpose runs, LMR-195 for lower loss over longer distances, or Belden 9907 for plenum-rated installations. The 100 mating cycle rating means this is a set-and-forget connector for field-installed cable assemblies, not a daily test-port connector. Crimp the centre contact with the correct hex die for the pin diameter, then crimp the ferrule over the braid.
RF Performance and Link Budget
The 0.3 dB insertion loss is a single-connector figure — budget it once per mated pair in the link calculation. At 4 GHz the VSWR is not stated in the spec, but the 50 Ohm impedance and the PTFE dielectric suggest a return loss better than -15 dB across most of the band when terminated to the correct cable. The gold-plated centre contact keeps the contact resistance low over the 100-cycle life, which matters for passive intermodulation in transmit paths.