{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"031-239","brand":"Amphenol","brandSlug":"amphenol","productSlug":"031-239","canonicalUrl":"https://icsourcedirect.com/amphenol/031-239","factsUrl":"https://icsourcedirect.com/api/mcp/products/031-239","rawCanonicalId":null},"summary":{"shortDescription":"Amphenol RF BNC jack, 031-239, 50 Ohm, 4 GHz, 500 V, bulkhead rear-side nut mount, solder cup, silver-plated beryllium copper/brass center contact, PTFE dielectric, nickel brass body, includes gasket, lockwasher, nut.","salesMarkdown":"## 50 Ohm BNC Jack, Bulkhead Mount, 4 GHz The 031-239: It comes as a kit with the connector body, a gasket, a lockwasher, and a nut — everything for a clean bulkhead install from the rear side. The center contact is silver-plated beryllium copper and brass, mated to a PTFE dielectric that holds the impedance steady across temperature. The 4 GHz max frequency means this jack holds its 50 Ohm characteristic impedance across the DC-to-4 GHz band. The 0.2 dB insertion loss is low enough for most lab-grade signal paths. Termination is solder cup on the center contact and a solder lug for the shield. The 031-239 is listed as Active — no end-of-life notice, no last-time buy.","metaTitle":"Amphenol RF 031-239 BNC Jack, 50 Ohm, 4 GHz, Bulkhead","metaDescription":"Amphenol RF 031-239 BNC jack, 50 Ohm, 4 GHz max, 0.2 dB insertion loss. Includes gasket, lockwasher, nut. Silver-plated beryllium copper/brass center contact.","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":"Extended Insulation","Includes":"4 pcs - 1 Connector, 1 Gasket, 1 Lockwasher, 1 Nut","Impedance":"50Ohm","Body Finish":"Nickel","Cable Group":"-","Body Material":"Brass","Housing Color":"Silver","Mating Cycles":"500","Mounting Type":"Panel Mount","Connector Type":"Jack, Female Socket","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":"Bulkhead - Rear Side Nut","Ingress Protection":"-","Shield Termination":"Solder","Base Product Number":"031-23","Contact Termination":"Solder Cup","Dielectric Material":"Polytetrafluoroethylene (PTFE)","Operating Temperature":"-65°C~165°C","Center Contact Plating":"Silver","Center Contact Material":"Beryllium Copper; Brass"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$14.1500","stockQuantity":23,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"Does 031-239 include mounting hardware?","answer":"Yes, the kit includes a gasket, a lockwasher, and a nut for bulkhead mounting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"isd-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/031-239","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/031-239 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}}