{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"31-321-1000","brand":"Amphenol","brandSlug":"amphenol","productSlug":"31-321-1000","canonicalUrl":"https://icsourcedirect.com/amphenol/31-321-1000","factsUrl":"https://icsourcedirect.com/api/mcp/products/31-321-1000","rawCanonicalId":null},"summary":{"shortDescription":"Amphenol RF BNC plug, 50 Ohm, crimp termination, RG-59 double braid, 4 GHz, 500 V, nickel body, gold center contact, bulk package.","salesMarkdown":"## What This BNC Plug Does in the Cable Run The Amphenol RF 31-321-1000 is a 50 Ohm BNC plug, crimp-terminated, designed for RG-59 double braid cable and Belden 9231. ## Cable Fit and Termination — What Goes Where This plug is built for RG-59 double braid and Belden 9231. The crimp ferrule clamps over the outer braid, and the center contact crimps onto the signal conductor. That means the manufacturer continues to support existing production but flags this part as phased out for new projects. For a new design, look at the current Amphenol RF BNC catalog for a recommended replacement. At 4 GHz, the plug still holds the loss to 0.2 dB — that is a clean pass-through for a single connector in a test-signal chain. Below 1 GHz, the loss is negligible. The gold-plated center contact and nickel-plated brass body keep the signal path corrosion-resistant over the 500 mating cycles the connector is rated for.","metaTitle":"Amphenol RF 31-321-1000 BNC Plug, 50 Ohm, 4 GHz, RG-59","metaDescription":"Amphenol RF 31-321-1000 BNC plug, 50 Ohm, rated to 4 GHz. Crimp termination for RG-59 double braid. NRND — sourced to order against RFQ.","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":"3 pcs - 1 Connector, 1 Contact, 1 Ferrule","Impedance":"50Ohm","Body Finish":"Nickel","Cable Group":"RG-59 Double Braid, Belden 9231","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":"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":"31-321","Contact Termination":"Crimp","Dielectric Material":"Polytetrafluoroethylene (PTFE)","Operating Temperature":"-65°C~165°C","Center Contact Plating":"Gold","Center Contact Material":"Brass"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$10.8500","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/92b172f61303f7c8fa99c18ab59bb8b4.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/31-321-1000/alternatives.json"},"ai":{"faq":[{"question":"What cable is 31-321-1000 compatible with?","answer":"The 31-321-1000 is designed for RG-59 double braid cable and Belden 9231. The crimp ferrule and center contact are sized for these cable types."},{"question":"Is 31-321-1000 obsolete?","answer":"The 31-321-1000 carries an NRND (Not Recommended for New Designs) lifecycle status. It is not fully discontinued but is not recommended for new designs."},{"question":"What is the impedance of 31-321-1000?","answer":"The impedance is 50 Ohm, the standard for RF test equipment, broadcast video, and instrumentation applications."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/31-321-1000","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/31-321-1000 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}}