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3FA1-NBSJ-C04W0 — Amphenol product photo
Amphenol

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

MPN3FA1-NBSJ-C04W0
Active

Amphenol RF SMB Fakra jack, 3FA1-NBSJ-C04W0, Code B, 50 Ohm, 3 GHz, crimp termination, RG-58 compatible, free-hanging, latch lock, 100 mating cycles.

$1.4645Ref. price · indicative, final on quote
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Specifications

3FA1-NBSJ-C04W0 Technical Specifications
ParameterValue
Mounting typeFree 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 colorCream
Dielectric materialPolytetrafluoroethylene (PTFE)
Center contact materialBrass
PackageTray
FeaturesCode B
Impedance50Ohm
Body finishTin
Mating cycles100
Number of ports1
Shield terminationCrimp
Contact terminationCrimp
Center contact platingGold

Product details

SMB Fakra Jack, Code B, 50 Ohm

The Amphenol RF 3FA1-NBSJ-C04W0 is a SMB Fakra jack (female socket) with Code B keying and a cream-colored housing. It is a free-hanging, in-line connector designed for RG-58 and similar cables (RG-58, 58A, 58B, 58C, 141, 303, LMR-195, Belden B7806A, 9907). The 50 Ohm impedance and 3 GHz maximum frequency make it suited for automotive antenna, telematics, and infotainment RF links where the Fakra latching and color coding prevent mis-mating.

This jack accepts RG-58, RG-58A, RG-58B, RG-58C, RG-141, RG-303, LMR-195, Belden B7806A, and Belden 9907 cables.

Keying and Color Code

Code B keying is indicated by the cream housing color. In the Fakra system, the color matches the keying code — a cream connector mates only with a Code B receptacle. This prevents cross-mating with other Fakra codes (A, C, D, etc.) in multi-connector harnesses.

Frequently asked questions

Where can I buy 3FA1-NBSJ-C04W0 and how do I get a price?

Current pricing and lead time are confirmed at quote time — submit an RFQ for a firm quote.

Is 3FA1-NBSJ-C04W0 compatible with RG-58 cable?

Yes, the 3FA1-NBSJ-C04W0 is listed as compatible with RG-58, RG-58A, RG-58B, and RG-58C cables, as well as RG-141, RG-303, LMR-195, Belden B7806A, and Belden 9907.

What is the color code of 3FA1-NBSJ-C04W0?

The 3FA1-NBSJ-C04W0 has a cream housing, which corresponds to Fakra Code B keying.

What is the impedance of 3FA1-NBSJ-C04W0?

The impedance is 50 Ohm, the standard for RF signal paths in automotive and telecom applications.