{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"FA1-NKSJ-C04-0","brand":"Amphenol","brandSlug":"amphenol","productSlug":"FA1-NKSJ-C04-0","canonicalUrl":"https://icsourcedirect.com/amphenol/FA1-NKSJ-C04-0","factsUrl":"https://icsourcedirect.com/api/mcp/products/FA1-NKSJ-C04-0","rawCanonicalId":null},"summary":{"shortDescription":"Hirose FA1-NKSJ series SMB/Fakra jack, female socket, 50 Ohm, 4 GHz, Code K keying, crimp termination, RG-58 cable group, 100 mating cycles.","salesMarkdown":"## Fakra Jack for RG-58 — Code K, 4 GHz, Kit Format The Hirose FA1-NKSJ-C04-0 is a Code K Fakra jack (female socket) in the SMB/Fakra connector style, designed for crimp termination to RG-58 and similar 50 Ohm cables. It comes as a complete 5-piece kit: the connector body, a center contact, a ferrule, a housing, and a locking clip — everything needed for one field-ready termination. The dielectric is PTFE, giving stable RF performance across the -40°C to 115°C operating range. The Code K keying — identified by the curry-colored housing — prevents cross-mating with other Fakra color codes (e.g., Code Z in blue, Code A in black). ## Cable Compatibility — RG-58 and Beyond This jack is specced for RG-58, 58A, 58B, 58C, 141, 303, LMR-195, Belden B7806A, and 9907. That covers the common 50 Ohm thin coax used in GPS antennas, cellular modems, and short-run RF interconnects. The crimp shield termination and crimp contact termination keep assembly consistent across the cable group — no soldering required in the field.","metaTitle":"FA1-NKSJ-C04-0 Fakra Jack, 50 Ohm, 4 GHz, Code K, RG-58","metaDescription":"FA1-NKSJ-C04-0 SMB/Fakra jack, female socket, 50 Ohm, 4 GHz max, 0.3 dB loss, Code K keying. Includes connector, contact, ferrule, housing, locking clip.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["RF / Coaxial Connectors","RF Cable Assemblies"],"specifications":{"Mfr":"Amphenol RF","Series":"-","Package":"Bulk","Features":"Code K","Includes":"5 pcs - 1 Connector, 1 Contact, 1 Ferrule, 1 Housing, 1 Locking Clip","Impedance":"50Ohm","Body Finish":"Nickel","Cable Group":"RG-58, 58A, 58B, 58C, 141, 303, LMR-195, Belden B7806A, 9907","Body Material":"Brass","Housing Color":"Curry","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":"4 GHz","Number of Ports":"1","lifecycle_stage":"unknown","Mounting Feature":"-","Ingress Protection":"-","Shield Termination":"Crimp","Base Product Number":"FA1-NKSJ","Contact Termination":"Crimp","Dielectric Material":"Polytetrafluoroethylene (PTFE)","Operating Temperature":"-40°C~115°C","Center Contact Plating":"Gold","Center Contact Material":"Beryllium Copper"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.0600","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/d070412a21755d7d6c114f893e40ba1f.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/FA1-NKSJ-C04-0/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/FA1-NKSJ-C04-0","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/FA1-NKSJ-C04-0 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}}