{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"031-6861","brand":"Amphenol","brandSlug":"amphenol","productSlug":"031-6861","canonicalUrl":"https://icsourcedirect.com/amphenol/031-6861","factsUrl":"https://icsourcedirect.com/api/mcp/products/031-6861","rawCanonicalId":null},"summary":{"shortDescription":"Amphenol RF BNC plug, male pin, 031-6861, 50 Ohm impedance, 12.4 GHz max frequency, for LMR-240 cable, crimp shield termination, solder contact, 500 mating cycles, -65°C to 165°C, bulk.","salesMarkdown":"The 031-6861: The kit includes four pieces: the connector body, a gold-plated brass centre contact, a crimp ferrule, and a PTFE insulator, all assembled in the field onto LMR-240 cable. ## Cable Fit and Termination — LMR-240 Specific This connector is dimensioned for LMR-240 coax — a low-loss cable with a 0.240-inch OD, 50 Ohm impedance, and a solid or stranded centre conductor. The shield termination is crimp (the ferrule compresses onto the braid), while the centre pin is soldered to the conductor. If you're terminating a different cable type, the dielectric diameter and jacket OD won't match the ferrule and insulator bores. ## How It Compares to Nearby Peers The 031-70558-12G is also a BNC plug but at 75 Ohm impedance for Belden 4694P cable — it won't match a 50 Ohm system. The 034-1118-12G is a 75 Ohm HD-BNC plug for Belden 1855A/4855R, with a smaller form factor and 18 GHz ceiling, but incompatible with standard BNC jacks. The 031-6928 is a bulkhead jack (female) for LMR-240, IP67 sealed — same cable group, opposite gender and mounting. None are a drop-in swap; the 031-6861 stays the correct 50 Ohm male plug for LMR-240.","metaTitle":"Amphenol RF 031-6861 BNC Plug, 50 Ohm, 12.4 GHz, LMR-240","metaDescription":"Amphenol RF 031-6861 BNC plug, male pin, 50 Ohm impedance, 12.4 GHz max frequency, for LMR-240 cable. Kit includes connector, contact, ferrule, insulator.","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":"4 pcs - 1 Connector, 1 Contact, 1 Ferrule, 1 Insulator","Impedance":"50Ohm","Body Finish":"Nickel","Cable Group":"LMR-240","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":"12.4 GHz","Number of Ports":"1","lifecycle_stage":"unknown","Mounting Feature":"-","Ingress Protection":"-","Shield Termination":"Crimp","Base Product Number":"031-68","Contact Termination":"Solder","Dielectric Material":"Polytetrafluoroethylene (PTFE)","Operating Temperature":"-65°C~165°C","Center Contact Plating":"Gold","Center Contact Material":"Brass"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$8.6600","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/9760c53ef53659cb484fde817ace7ec4.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/031-6861/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/031-6861","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/031-6861 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}}