{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"31-212","brand":"Amphenol","brandSlug":"amphenol","productSlug":"31-212","canonicalUrl":"https://icsourcedirect.com/amphenol/31-212","factsUrl":"https://icsourcedirect.com/api/mcp/products/31-212","rawCanonicalId":null},"summary":{"shortDescription":"Amphenol RF BNC series, 31-212, Plug Male Pin, 50Ohm, 4GHz, 500V, Bayonet Lock, Solder Termination, Silver Center Contact, Bulk.","salesMarkdown":"The 31-212: It is a field-assembly kit — the package includes the connector body, braid clamp, cable clamp, centre contact, gasket, insulator, and washer — seven pieces total, so nothing extra to order for a single termination. This plug fits RG-59, 59B, 62, 140, 210, and Belden 8241, 8263, 8279, 9209 coax cables. The centre contact is solder termination; the shield is clamped down by the braid clamp. ## 31-212 vs 31-206 — In-Line Plug vs Bulkhead Jack The 31-206 is the bulkhead-mounted jack counterpart to this plug. Both are BNC, 50 Ohm, 4 GHz, with 500 mating cycles and 0.2 dB insertion loss. The difference is the form factor: the 31-212 is a free-hanging plug (male pin) for in-line cable termination, while the 31-206 is a jack (female socket) that mounts through a panel with a front-side nut and lockwasher. If your assembly needs a panel pass-through, the 31-206 is the mating half on the bulkhead side; the 31-212 stays on the cable end.","metaTitle":"Amphenol RF 31-212 BNC Plug, 50 Ohm, 4 GHz","metaDescription":"Amphenol RF 31-212 BNC plug, male pin, 50 Ohm, 4 GHz max, 500 V. Kit includes connector, braid clamp, clamp, contact, gasket, insulator, washer.","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":"7 pcs - 1 Connector, 1 Braid Clamp, 1 Clamp, 1 Contact, 1 Gasket, 1 Insulator, 1 Washer","Impedance":"50Ohm","Body Finish":"Nickel","Cable Group":"RG-59, 59B, 62, 140, 210, Belden 8241, 8263, 8279, 9209","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":"Active","Voltage Rating":"500 V","Connector Style":"BNC","Frequency - Max":"4 GHz","Number of Ports":"1","lifecycle_stage":"unknown","Mounting Feature":"-","Ingress Protection":"-","Shield Termination":"Clamp","Base Product Number":"31-212","Contact Termination":"Solder","Dielectric Material":"Polytetrafluoroethylene (PTFE)","Operating Temperature":"-65°C~165°C","Center Contact Plating":"Silver","Center Contact Material":"Brass"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$9.6200","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/be48e00bfd9e470f5ca5740b23248f00.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/31-212/alternatives.json"},"ai":{"faq":[{"question":"What cable types does the 31-212 fit?","answer":"The 31-212 fits RG-59, 59B, 62, 140, 210, and Belden 8241, 8263, 8279, 9209 coax cables."},{"question":"What is the impedance of the 31-212 connector?","answer":"The 31-212 is a 50 Ohm BNC plug, rated to 4 GHz maximum frequency."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/31-212","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/31-212 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}}