SMB Fakra Jack, 50 Ohm, Sealed for Exterior Harnesses
The 3FA1ENZRJ-C01ER: The IP67 seal makes it dust-tight and waterproof, so it goes into engine-bay or exterior harness sections without a secondary overmold. The kit includes the connector, end cap, ferrule, gasket, heat shrink, and housing — six pieces that cover the full cable termination in one order code.
Cable Group and Termination — RG-174, 188, 316
This jack is specced for RG-174, RG-188, and RG-316 coax — thin, flexible cables common in automotive antenna feeds, GPS modules, and short RF pigtails. The shield terminates via crimp; the centre contact is soldered.
Code Z Keying — Which Fakra Colour Goes Where
Code Z is one of the Fakra colour/slot keying variants — the blue and water-coloured housing prevents cross-mating with a Code A, B, C, or D receptacle on the same harness. In a multi-connector bundle (GPS, satellite radio, cellular, V2X), the keying ensures each RF line lands on the correct port.
How It Compares — FA1-NZSJ-C01-0
The closest functional peer is the FA1-NZSJ-C01-0 — same Code Z keying, same 50 Ohm impedance, same 100 mating cycles, same cable group (RG-174, 188, 316). The difference is frequency range: the 3FA1ENZRJ-C01ER is rated to 3 GHz, while the FA1-NZSJ-C01-0 goes to 6 GHz. For a GPS or cellular antenna feed at 2.4 GHz or below, the 3 GHz ceiling is fine; for a 5 GHz Wi-Fi or dual-band automotive link, step to the 6 GHz sibling. The 3FA1ENZRJ-C01ER also ships as a full kit (six pieces including heat shrink and gasket) versus the FA1-NZSJ-C01-0's five-piece kit (no heat shrink).