{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"031-6821","brand":"Amphenol","brandSlug":"amphenol","productSlug":"031-6821","canonicalUrl":"https://icsourcedirect.com/amphenol/031-6821","factsUrl":"https://icsourcedirect.com/api/mcp/products/031-6821","rawCanonicalId":null},"summary":{"shortDescription":"Amphenol RF TNC plug, male pin, 50 Ohm, LMR-195 cable, solder contact, crimp shield, 6 GHz, 500 mating cycles, -65°C~165°C, bulk.","salesMarkdown":"## TNC Plug for LMR-195 — 50 Ohm, 6 GHz The 031-6821: The connector comes as two pieces — the plug body and a separate ferrule — and is terminated by soldering the centre contact and crimping the shield braid. The threaded coupling nut provides vibration-resistant mating, making this a field-reliable choice for outdoor antenna feeds, base station jumpers, and equipment interconnects where the connection must stay tight under mechanical stress. ## Cable-Specific Tuning — Why LMR-195 Matters This plug is dimensionally tuned for LMR-195 cable. Using a different cable shifts the impedance away from 50 Ohm and degrades VSWR above a few hundred MHz. ## Termination Sequence — Solder Centre, Crimp Braid The nickel-plated brass body and gold-plated brass centre contact give good corrosion resistance and support the rated 500 mating cycles.","metaTitle":"031-6821 Amphenol RF TNC Plug, LMR-195, 50 Ohm, 6 GHz","metaDescription":"031-6821 Amphenol RF TNC plug, male pin, 50 Ohm, 6 GHz max, for LMR-195 cable. Solder center contact, crimp shield. Active production, quoted 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":"2 pcs - 1 Connector, 1 Ferrule","Impedance":"50Ohm","Body Finish":"Nickel","Cable Group":"LMR-195","Body Material":"Brass","Housing Color":"Silver","Mating Cycles":"500","Mounting Type":"Free Hanging (In-Line)","Connector Type":"Plug, Male Pin","Fastening Type":"Threaded","Insertion Loss":"-","Product Status":"Active","Connector Style":"TNC","Frequency - Max":"6 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":"$9.9900","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/97e9c3c7e21460b0e55979bc7708f0bb.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/031-6821/alternatives.json"},"ai":{"faq":[{"question":"What cable group does the 031-6821 support?","answer":"The 031-6821 is designed for LMR-195 coaxial cable. The centre contact, dielectric support, and ferrule are sized for this specific cable's 0.195-inch outer diameter and foam dielectric. It is not compatible with LMR-400 or RG-58 without changing the connector."},{"question":"Is the 031-6821 50 Ohm?","answer":"Yes, the 031-6821 is a 50 Ohm TNC plug. The 50 Ohm impedance is maintained through the PTFE dielectric support and the cable-specific centre contact geometry matched to LMR-195."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/031-6821","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/031-6821 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}}