{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"2FA1-NDSJ-C01-0","brand":"Amphenol","brandSlug":"amphenol","productSlug":"2FA1-NDSJ-C01-0","canonicalUrl":"https://icsourcedirect.com/amphenol/2FA1-NDSJ-C01-0","factsUrl":"https://icsourcedirect.com/api/mcp/products/2FA1-NDSJ-C01-0","rawCanonicalId":null},"summary":{"shortDescription":"Amphenol RF Fakra SMB jack, 50 Ohm, 6 GHz, female socket, crimp termination, latch lock, nickel body, RG-174/188/316/LMR-100, bulk.","salesMarkdown":"The Amphenol RF 2FA1-NDSJ-C01-0 is a Fakra-coded SMB jack — a female socket connector that combines the snap-on SMB interface with the colour-coded keying and latch lock of the Fakra automotive standard. It is a 50 Ohm design rated to 6 GHz with a specified insertion loss of 0.3 dB, built for in-line, free-hanging cable termination. The Fakra variant (Code D, violet/claret housing) is the version used in automotive antenna and infotainment RF links where the standard SMB's push-on retention is replaced by a positive latch lock that survives vehicle vibration. This is a crimp-termination connector — the centre contact crimps onto the signal wire, the shield crimps onto the cable braid, and the included ferrule completes the cable-clamp termination. The kit ships with three pieces: the connector body, one centre contact, and one ferrule, so one order code covers the full termination hardware. ## Cable Group Fit — Get This Right or the Termination Fails The 2FA1-NDSJ-C01-0 is dimensioned for a specific set of cable groups: RG-174, RG-188, RG-188A, RG-316, LMR-100, and M17/119-RG174. These are all small-diameter, 50 Ohm coaxial cables with a nominal outer diameter around 2.5-3.0 mm and a solid or stranded centre conductor of 0.5-0.8 mm. If your cable is not on this list — say RG-58, RG-142, or LMR-200 — the crimp ferrule and centre-contact barrel will not match the cable dimensions, and the termination will fail either electrically (impedance step) or mechanically (pull-out under tension). ## RF Performance and the 6 GHz Ceiling The 0.3 dB insertion loss across the DC-to-6 GHz band is specified for this crimp-style Fakra connector. The 50 Ohm impedance is fixed by the geometry of the SMB interface and the Fakra housing. ## Mating Cycles and the Latch Lock — Field-Service Reality After 100 cycles, the latch may lose its positive detent feel, and the connector can vibrate loose in an automotive environment. If your application requires frequent disconnect-reconnect (e.g., test equipment, prototype harnesses), plan for connector replacement before the 100-cycle mark or consider a higher-cycle-rated RF connector family. ## Construction and Materials — What the Nickel Body Tells You The body is zinc die cast with a nickel finish.","metaTitle":"Amphenol RF 2FA1-NDSJ-C01-0 Fakra SMB Jack, 50 Ohm, 6 GHz","metaDescription":"Amphenol RF 2FA1-NDSJ-C01-0 Fakra SMB jack, female socket, 50 Ohm, 6 GHz max frequency, 0.3 dB insertion loss. Crimp termination for RG-174, 188, 316, LMR-100.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["RF / Coaxial Connectors"],"specifications":{"Mfr":"Amphenol RF","Series":"-","Package":"Bulk","Features":"Code D","Includes":"3 pcs - 1 Connector, 1 Contact, 1 Ferrule","Impedance":"50Ohm","Body Finish":"Nickel","Cable Group":"RG-174, 188, 188A, 316, LMR-100, M17/119-RG174","Body Material":"Zinc Die Cast","Housing Color":"Violet, Claret","Mating Cycles":"100","Mounting Type":"Free Hanging (In-Line)","Connector Type":"Jack, Female Socket","Fastening Type":"Latch Lock","Insertion Loss":"0.3dB","Product Status":"Active","Connector Style":"SMB, Fakra","Frequency - Max":"6 GHz","Number of Ports":"1","lifecycle_stage":"unknown","Mounting Feature":"-","Ingress Protection":"-","Shield Termination":"Crimp","Base Product Number":"2FA1","Contact Termination":"Crimp","Dielectric Material":"Polytetrafluoroethylene (PTFE)","Operating Temperature":"-40°C~100°C","Center Contact Plating":"Gold","Center Contact Material":"Phosphor Bronze"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.5400","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/2FA1-NDSJ-C01-0/alternatives.json"},"ai":{"faq":[{"question":"Is 2FA1-NDSJ-C01-0 a direct replacement for a standard SMB jack?","answer":"No — the Fakra keying (Code D, violet/claret housing) and the latch lock make it physically and electrically different from a standard SMB push-on jack. A standard SMB plug will not latch into this jack, and a Fakra Code D plug will not fit a standard SMB receptacle. Verify the mating half connector type before ordering."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/2FA1-NDSJ-C01-0","citationPolicyUrl":"https://icsourcedirect.com/llms.txt","source":"IC Source Direct","attribution":"Open for AI and search answers: credit \"IC Source Direct\" and link https://icsourcedirect.com/amphenol/2FA1-NDSJ-C01-0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-23T20:41:44.623Z","lastPublished":"2026-07-23T20:41:44.623Z","indexable":true}}