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Amphenol 3FA1-NESJ-C04W0 — RF / Coaxial Connectors

Amphenol RF 3FA1-NESJ-C04W0 SMB/Fakra Jack, 50 Ohm, 3 GHz

MPN3FA1-NESJ-C04W0
Active

Amphenol RF SMB, Fakra jack, female socket, 50 Ohm, 3 GHz, Code E keying, crimp termination, free-hanging, 1 port, RG-58/LMR-195 compatible, tray.

$1.4645Ref. price · indicative, final on quote
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for stock & sourcing questions
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent supplier — new & surplus connector stock· Listing updated Jul 2026

Specifications

3FA1-NESJ-C04W0 key specifications
ParameterValue
MountingFree Hanging (In-Line)
Connector typeJack, Female Socket
Fastening typeLatch Lock
Frequency - max3 GHz
Cable groupRG-58, 58A, 58B, 58C, 141, 303, LMR-195, Belden B7806A, 9907
Operating temperature-40°C~85°C
Body materialZinc Die Cast
Housing colorGreen, Leaf
Dielectric materialPolytetrafluoroethylene (PTFE)
Center contact materialBrass
PackageTray
FeaturesCode E

All specifications

3FA1-NESJ-C04W0 additional specifications
ParameterValue
Impedance50Ohm
Body finishTin
Mating cycles100
Number of ports1
Shield terminationCrimp
Contact terminationCrimp
Center contact platingGold

Product details

SMB/Fakra Jack for RG-58 and LMR-195 Cable Runs

It handles signals up to 3 GHz, which covers GPS, cellular, and short-run RF data links where the cable group (RG-58, 58A, 58B, 58C, 141, 303, LMR-195, Belden B7806A, 9907) determines the upper frequency limit more than the connector itself.

Code E Keying and Cable Compatibility

Code E is a Fakra keying variant — the colour (green, leaf) and mechanical keying prevent mating with a wrong-coded Fakra receptacle. This matters in multi-connector automotive harnesses where GPS, satellite radio, and cellular share the same dashboard zone. The cable group covers the common 50 Ohm coax types: RG-58, LMR-195, Belden 9907.

Frequently asked questions

What does code E mean on 3FA1-NESJ-C04W0?

Code E is a Fakra keying variant that uses a green/leaf housing colour and a specific mechanical key shape. It prevents cross-mating with other Fakra codes (A, B, C, D, F, etc.) in multi-connector automotive or RF harnesses.