{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"031-70559-12G","brand":"Amphenol","brandSlug":"amphenol","productSlug":"031-70559-12G","canonicalUrl":"https://icsourcedirect.com/amphenol/031-70559-12G","factsUrl":"https://icsourcedirect.com/api/mcp/products/031-70559-12G","rawCanonicalId":null},"summary":{"shortDescription":"Amphenol BNC jack, 75 Ohm, bayonet lock, free-hanging, crimp termination, includes connector, contact, ferrule, 12 GHz max, nickel body, gold center contact.","salesMarkdown":"## What the 12 GHz and 75 Ohm Ratings Mean for Your Signal Path The 031-70559-12G: The 12 GHz max frequency is the upper bandwidth limit — the connector will pass signals cleanly up to that point, with the impedance held at 75 Ohm throughout the mated pair. For typical video, broadcast, or data-acquisition links running below 3 GHz, this connector has headroom to spare. Pairing it with 50 Ohm cable or a 50 Ohm bulkhead creates a reflection at the junction that degrades return loss. The 500 mating cycles rating means the gold-plated center contact and nickel-plated brass body will survive repeated connect-disconnect cycles in test or field-service applications without significant wear on the mating surfaces. ## Cable and Crimp Termination Details The cable groups specified are Belden 4731R and 4731P, both 75 Ohm coaxial cables commonly used in CCTV, broadcast video, and serial digital interface runs. The kit includes the ferrule that compresses over the cable jacket to anchor the braid; it is not sold separately in this package.","metaTitle":"Amphenol 031-70559-12G BNC Jack, 75 Ohm, 12 GHz, Crimp Kit","metaDescription":"Amphenol 031-70559-12G BNC jack, 75 Ohm impedance, bayonet lock, 12 GHz max frequency. Includes connector, contact, ferrule. Active production.","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":"-","Includes":"3 pcs - 1 Connector, 1 Contact, 1 Ferrule","Impedance":"75Ohm","Body Finish":"Nickel","Cable Group":"Belden 4731R, 4731P","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":"-","Product Status":"Active","Connector Style":"BNC","Frequency - Max":"12 GHz","Number of Ports":"1","lifecycle_stage":"unknown","Mounting Feature":"-","Ingress Protection":"-","Shield Termination":"Crimp","Base Product Number":"031-70","Contact Termination":"Crimp","Dielectric Material":"Polytetrafluoroethylene (PTFE)","Operating Temperature":"-65°C~165°C","Center Contact Plating":"Gold","Center Contact Material":"Phosphor Bronze"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$10.5700","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/54635810ce9fa4e613191fa2b09f9512.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/031-70559-12G/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/031-70559-12G","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/031-70559-12G 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}}