{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"31-221-RFX","brand":"Amphenol","brandSlug":"amphenol","productSlug":"31-221-RFX","canonicalUrl":"https://icsourcedirect.com/amphenol/31-221-RFX","factsUrl":"https://icsourcedirect.com/api/mcp/products/31-221-RFX","rawCanonicalId":null},"summary":{"shortDescription":"Amphenol RF BNC jack, 31-221-RFX, 50 Ohm, panel mount bulkhead, bayonet lock, solder cup, gold center contact, 4 GHz, 500 cycles, includes lockwasher, nut, solder tag.","salesMarkdown":"## Panel-Mount BNC Jack with Extended Insulation The 31-221-RFX: It ships as a complete kit: one connector, one lockwasher, one hex nut, and one solder tag — no separate hardware order needed. The extended insulation feature provides additional creepage distance between the centre contact and the shell, useful when the cable jacket is stripped back further than usual or when the connector sits near a grounded chassis edge. The body is zinc die cast with a nickel finish, giving a durable silver appearance that matches standard BNC panel hardware. Termination is solder cup — the centre contact accepts a tinned or bare wire end; the shield connects via the included solder tag, which is soldered to the cable braid and clamped under the nut. The bayonet lock provides quick quarter-turn mating with any standard BNC plug. Listed as Active.","metaTitle":"31-221-RFX BNC Jack, 50 Ohm, Panel Mount, 4 GHz, Active","metaDescription":"31-221-RFX Amphenol RF BNC jack, 50 Ohm, panel mount bulkhead, 4 GHz, 500 mating cycles, gold center contact, includes hardware.","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":"Extended Insulation","Includes":"4 pcs - 1 Connector, 1 Lockwasher, 1 Nut, 1 Solder Tag","Impedance":"50Ohm","Body Finish":"Nickel","Cable Group":"-","Body Material":"Zinc Die Cast","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 Tag","Base Product Number":"31-221","Contact Termination":"Solder Cup","Dielectric Material":"Polyoxymethylene (POM) Acetal","Operating Temperature":"-","Center Contact Plating":"Gold","Center Contact Material":"Phosphor Bronze"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.3800","stockQuantity":20,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/3416f391eb83666f77aadc3b56da0117.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy 31-221-RFX in bulk?","answer":"Submit a request for current pricing and availability — quantities are confirmed at quote time."},{"question":"What is the impedance of 31-221-RFX?","answer":"50 Ohm nominal, standard for BNC interfaces used in RF test and telecom equipment."},{"question":"What is the difference between 31-221-RFX and 31-221?","answer":"The RFX suffix indicates the extended insulation feature — additional dielectric material between centre contact and shell for higher creepage. The base 31-221 is the standard version without this feature."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"isd-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/31-221-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/31-221-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}}