{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"031-317-RFX","brand":"Amphenol","brandSlug":"amphenol","productSlug":"031-317-RFX","canonicalUrl":"https://icsourcedirect.com/amphenol/031-317-RFX","factsUrl":"https://icsourcedirect.com/api/mcp/products/031-317-RFX","rawCanonicalId":null},"summary":{"shortDescription":"Amphenol RF 031-317-RFX, BNC jack, female socket, 50 Ohm, 4 GHz, 0.2 dB insertion loss, crimp termination, bayonet lock, 500 V, -55°C to 85°C, bulk.","salesMarkdown":"The 031-317-RFX: This is the crimp-termination variant of the 031-31 base series, intended for RG-174, RG-188, RG-188A, RG-316, LMR-100, and M17/119-RG174 cables. That means the manufacturer continues to support existing production but advises against specifying it for new projects. Buyers planning a new design should evaluate the current 50 Ohm BNC jack portfolio from Amphenol RF for a direct-fit alternative. The 0.2 dB insertion loss is a typical figure — expect it to hold across the DC-4 GHz range when terminated on the listed cable types. The listed cable groups — RG-174, RG-188, RG-188A, RG-316, LMR-100, M17/119-RG174 — cover the most common 50 Ohm small-diameter coax types used in patch cords, pigtails, and internal RF harnesses. The bayonet lock provides a quick, positive mate with a standard BNC jack, rated for 500 mating cycles. ## Construction and Environmental Ratings The dielectric is polyoxymethylene (POM) acetal. The voltage rating of 500 V is typical for a BNC interface — adequate for signal-level and low-power RF circuits, not for mains power.","metaTitle":"031-317-RFX BNC Jack, 50 Ohm, 4 GHz, Crimp Termination","metaDescription":"031-317-RFX BNC jack, 50 Ohm, 4 GHz, 0.2 dB insertion loss. Crimp termination for RG-174/188/316/LMR-100. NRND — sourced to order. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"NRND","categoryPath":["RF / Coaxial Connectors"],"specifications":{"Mfr":"Amphenol RF","Series":"-","Package":"Bulk","Features":"-","Includes":"4 pcs - 1 Connector, 1 Contact, 1 Ferrule, 1 Insulator","Impedance":"50Ohm","Body Finish":"Nickel","Cable Group":"RG-174, 188, 188A, 316, LMR-100, M17/119-RG174","Body Material":"Brass","Housing Color":"Silver","Mating Cycles":"500","Mounting Type":"Free Hanging (In-Line)","Connector Type":"Jack, Female Socket","Fastening Type":"Bayonet Lock","Insertion Loss":"0.2dB","Product Status":"Not For New Designs","Voltage Rating":"500 V","Connector Style":"BNC","Frequency - Max":"4 GHz","Number of Ports":"1","lifecycle_stage":"unknown","Mounting Feature":"-","Ingress Protection":"-","Shield Termination":"Crimp","Base Product Number":"031-31","Contact Termination":"Crimp","Dielectric Material":"Polyoxymethylene (POM) Acetal","Operating Temperature":"-55°C~85°C","Center Contact Plating":"Gold","Center Contact Material":"Phosphor Bronze"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.4036","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy 031-317-RFX and what is the current price?","answer":"031-317-RFX is sourced to order through independent distribution."},{"question":"Is 031-317-RFX obsolete or not recommended for new designs?","answer":"Yes, 031-317-RFX carries an NRND (Not Recommended for New Designs) lifecycle status. It is not formally discontinued but the manufacturer advises against using it in new projects. Existing BOM lines can still be supplied through the independent channel."},{"question":"What cables work with the 031-317-RFX connector?","answer":"The connector is designed for RG-174, RG-188, RG-188A, RG-316, LMR-100, and M17/119-RG174 cables. These are all 50 Ohm small-diameter coax types commonly used in RF patch cords and internal harnesses."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"isd-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/031-317-RFX","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/031-317-RFX 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}}