What This SMB Fakra Jack Kit Delivers
The FA1-NZSJ-C04-0: The 0.3 dB insertion loss across the band keeps signal attenuation low enough for receiver front-end links. The free-hanging in-line mounting and crimp termination for both center contact and shield suit harness builders who need a field-terminable connector without soldering.
Cable Group Fit and Assembly
This jack is designed for RG-58, 58A, 58B, 58C, 141, 303, LMR-195, Belden B7806A, and 9907 cable groups — the common 50 Ohm coax types used in mobile and fixed RF installations. The crimp ferrule and contact are sized for these cable diameters; using a cable outside the listed groups risks poor shield termination and impedance mismatch. The kit includes the locking clip, which engages with the Fakra housing latch to prevent accidental disconnection under vibration — a standard requirement for automotive and marine RF harnesses. The blue/water housing color is the Code Z keying variant, ensuring it mates only with the corresponding Code Z Fakra plug.
Comparing the FA1-NZSJ-C04-0 with the FA1-NZSJ-C01-0
The FA1-NZSJ-C01-0 is the same SMB Fakra jack kit but configured for RG-174, 188, 316, and LMR-100 cable groups — the thinner 50 Ohm coax used in shorter jumper runs and pigtails. Both share the 50 Ohm impedance, 6 GHz max frequency, 0.3 dB insertion loss, 100 mating cycles, and the same 5-piece kit contents. The cable group is the only selection difference: choose the C04-0 for RG-58-class cables and the C01-0 for RG-174-class cables.