{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"031-70560-12G","brand":"Amphenol","brandSlug":"amphenol","productSlug":"031-70560-12G","canonicalUrl":"https://icsourcedirect.com/amphenol/031-70560-12G","factsUrl":"https://icsourcedirect.com/api/mcp/products/031-70560-12G","rawCanonicalId":null},"summary":{"shortDescription":"Amphenol RF BNC plug, 75 Ohm, 12 GHz, crimp termination, for Belden 4731R/4731P cable, 500 mating cycles, nickel body, gold center contact.","salesMarkdown":"## Cable Fit — Belden 4731R and 4731P The 031-70560-12G: This plug is dimensionally matched to Belden 4731R and 4731P cables — the ferrule ID and center contact pin diameter are cut for those specific jacket and dielectric diameters. Using it on a different 75 Ohm cable (e.g., Belden 1855A or 4694R) will not crimp correctly and will likely degrade the impedance match or pull-out strength. ## 75 Ohm vs 50 Ohm — Why It Matters The 75 Ohm impedance is standard for video, broadcast, and SDI signal paths — HD-SDI runs at 75 Ohm. A 75 Ohm plug on a 50 Ohm jack will mate physically (same bayonet lock) but the impedance mismatch will cause signal reflections above a few hundred MHz. The 12 GHz frequency rating only holds when both the plug and the mating jack are 75 Ohm. ## Crimp Termination and Field Assembly The center contact crimps onto the cable's center conductor; the ferrule crimps over the braid and jacket. No solder, no clamp — just a standard hex crimp tool with the correct die for Belden 4731R/P.","metaTitle":"Amphenol RF 031-70560-12G BNC Plug, 75 Ohm, 12 GHz, Crimp","metaDescription":"Amphenol RF 031-70560-12G BNC plug, 75 Ohm impedance, 12 GHz max frequency, crimp termination. For Belden 4731R/P cable. Active production, sourced to order.","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":"-","Includes":"3 pcs - 1 Connector, 1 Contact, 1 Ferrule","Impedance":"75Ohm","Body Finish":"Nickel","Cable Group":"Belden 4731R, 4731P","Body Material":"Phosphor Bronze","Housing Color":"Silver","Mating Cycles":"500","Mounting Type":"Free Hanging (In-Line)","Connector Type":"Plug, Male Pin","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":"-30°C~85°C","Center Contact Plating":"Gold","Center Contact Material":"Brass"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$14.9300","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/7fc59ed17cfadd0f816f23f5d794187d.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/031-70560-12G/alternatives.json"},"ai":{"faq":[{"question":"What cables are compatible with 031-70560-12G?","answer":"This BNC plug is designed for Belden 4731R and 4731P coaxial cables. The ferrule and center contact dimensions are specific to those cable diameters."},{"question":"Does 031-70560-12G include the contact and ferrule?","answer":"No separate purchase of terminals is needed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/031-70560-12G","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/031-70560-12G 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}}