The Amphenol RF FA1-NASJ-C01-0 is a hybrid SMB / Fakra jack — a female socket with a 50 Ohm impedance path, rated to 6 GHz with a 0.3 dB insertion loss. It is the Code A keyed variant in the FA1-NASJ series, meaning the latch lock and housing geometry are specific to the A-position coding used in automotive RF applications like GPS and satellite radio. The connector ships as a complete field-installable kit: one connector body, one center contact, one ferrule, one housing, and one locking clip — five pieces that cover the full crimp termination to the cable.
This jack is built for small-diameter 50 Ohm coax: RG-174, RG-188A, RG-316, LMR-100, and M17/119-RG174 all land on the cable group list. The center contact crimps onto the signal conductor, the ferrule crimps over the braid for shield termination, and the locking clip secures the housing to the connector body.