{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"31-2373","brand":"Amphenol","brandSlug":"amphenol","productSlug":"31-2373","canonicalUrl":"https://icsourcedirect.com/amphenol/31-2373","factsUrl":"https://icsourcedirect.com/api/mcp/products/31-2373","rawCanonicalId":null},"summary":{"shortDescription":"Amphenol RF TNC plug, 31-2373, male pin, 50 Ohm, 11 GHz max, 500 V, crimp shield, crimp or solder centre, Bulk, 3-piece kit.","salesMarkdown":"## TNC Plug, 50 Ohm, Rated to 11 GHz — Cable Group RG-55, 142, 223, 400 The 31-2373: The threaded coupling gives a vibration-resistant mate, and the 500 V rating covers typical RF power levels through the cable group it is sized for. The cable group — RG-55, 142, 223, 400 — determines the dielectric diameter the ferrule and centre contact are machined for. ## 11 GHz Ceiling and Insertion Loss The 11 GHz maximum frequency is the practical upper limit of the TNC interface geometry before higher-order modes propagate. For a 50 Ohm system, the 0.18 dB insertion loss at the rated band is low enough that a single mated pair adds negligible attenuation to a cable run — the loss budget is dominated by the coax itself. ## Operating Range and Build The threaded fastening gives a positive stop; hand-tight plus a quarter-turn with a wrench is the usual field practice.","metaTitle":"Amphenol RF 31-2373 TNC Plug, 50 Ohm, 11 GHz","metaDescription":"Amphenol RF 31-2373 TNC plug, male pin, 50 Ohm, rated to 11 GHz. Crimp shield, crimp or solder centre. 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":"50Ohm","Body Finish":"Nickel","Cable Group":"RG-55, 142, 223, 400","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":"0.18dB","Product Status":"Active","Voltage Rating":"500 V","Connector Style":"TNC","Frequency - Max":"11 GHz","Number of Ports":"1","lifecycle_stage":"unknown","Mounting Feature":"-","Ingress Protection":"-","Shield Termination":"Crimp","Base Product Number":"31-237","Contact Termination":"Crimp or 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":"$9.4100","stockQuantity":23,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/2abe4af320f8ae9fe3daa6df2b91c22b.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the impedance of 31-2373?","answer":"The 31-2373 is a 50 Ohm connector, standard for TNC interfaces. The PTFE dielectric and brass centre contact geometry are machined to maintain 50 Ohm characteristic impedance through the mated pair."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"isd-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/31-2373","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/31-2373 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}}