{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"031-5137","brand":"Amphenol","brandSlug":"amphenol","productSlug":"031-5137","canonicalUrl":"https://icsourcedirect.com/amphenol/031-5137","factsUrl":"https://icsourcedirect.com/api/mcp/products/031-5137","rawCanonicalId":null},"summary":{"shortDescription":"Amphenol RF Suretwist® BNC plug, 50 Ohm, 4 GHz, bayonet lock, twist-on shield, gold-plated brass centre contact, -65°C to 165°C, free-hanging.","salesMarkdown":"The 031-5137: This plug accepts RG-58, 58A, 58B, 58C, 141, 303, LMR-195, and Belden B7806A and 9907 — the standard 50 Ohm flexible and semi-rigid coax sizes that share a common dielectric diameter. The contact termination is push-on (solder or crimp the centre pin to the conductor), and the shield is secured by the twist-on body. No special tooling beyond a centre-pin crimp tool and a cable prep knife is required for field installs. ## Construction and Duty The dielectric is PTFE, which gives the wide temperature range and stable RF performance.","metaTitle":"Amphenol RF 031-5137 BNC Plug, 50 Ohm, 4 GHz, Suretwist","metaDescription":"Amphenol RF 031-5137 BNC plug, 50 Ohm, 4 GHz max, bayonet lock, twist-on shield, gold centre contact, -65 to 165°C. Active production, sourced per RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["RF / Coaxial Connectors"],"specifications":{"Mfr":"Amphenol RF","Series":"Suretwist®","Package":"Bulk","Features":"-","Includes":"-","Impedance":"50Ohm","Body Finish":"Nickel","Cable Group":"RG-58, 58A, 58B, 58C, 141, 303, LMR-195, Belden B7806A, 9907","Body Material":"Brass","Housing Color":"Silver","Mating Cycles":"500","Mounting Type":"Free Hanging (In-Line)","Connector Type":"Plug, Male Pin","Fastening Type":"Bayonet Lock","Insertion Loss":"0.2dB","Product Status":"Active","Voltage Rating":"500 V","Connector Style":"BNC","Frequency - Max":"4 GHz","Number of Ports":"1","lifecycle_stage":"unknown","Mounting Feature":"-","Ingress Protection":"-","Shield Termination":"Twist On","Base Product Number":"031-51","Contact Termination":"Push On","Dielectric Material":"Polytetrafluoroethylene (PTFE)","Operating Temperature":"-65°C~165°C","Center Contact Plating":"Gold","Center Contact Material":"Brass"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$8.9799","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/031-5137/alternatives.json"},"ai":{"faq":[{"question":"Is the 031-5137 BNC plug 50 or 75 Ohm?","answer":"50 Ohm — the impedance is listed as 50 Ohm, and the cable groups (RG-58, LMR-195, etc.) are all 50 Ohm coax types."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/031-5137","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/031-5137 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}}