{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1-1478043-0","brand":"TE Connectivity AMP Connectors","brandSlug":"te-connectivity-amp-connectors","productSlug":"1-1478043-0","canonicalUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/1-1478043-0","factsUrl":"https://icsourcedirect.com/api/mcp/products/1-1478043-0","rawCanonicalId":null},"summary":{"shortDescription":"TE Connectivity Greenpar BNC to BNC adapter, 1-1478043-0, 75 Ohm, straight plug to plug, male to male, silver-plated brass body, PTFE dielectric, 2 GHz max, 500 mating cycles.","salesMarkdown":"## 75 Ohm BNC Barrel Coupler — TE Greenpar 1-1478043-0 The TE Connectivity 1-1478043-0 is a straight BNC to BNC adapter from the Greenpar series, configured as a plug-to-plug barrel with male center contacts on both ends. It carries a 75 Ohm characteristic impedance — the standard for broadcast video, CCTV, and baseband digital video signal paths — not the 50 Ohm used in RF test equipment or telecom. The adapter is rated to 2 GHz maximum frequency, covering the full SDI and HD-SDI bandwidth with margin. ## Impedance and Signal Path — Why 75 Ohm Matters The 75 Ohm impedance is the defining spec on this adapter. A 75 Ohm BNC has a different center pin diameter and dielectric geometry than a 50 Ohm BNC — they are mechanically incompatible. Plugging a 75 Ohm adapter into a 50 Ohm system creates a reflection at the junction that degrades signal integrity above a few hundred MHz. This adapter is built for 75 Ohm paths: composite video, serial digital interface (SDI) at 270 Mbps to 3 Gbps, and baseband analog video. The PTFE dielectric keeps the impedance stable across temperature and frequency, and the silver plating on the contacts and body maintains low insertion loss through the 2 GHz band. ## Mating Cycles and Field Service Rated for 500 mating cycles, this adapter is designed for patch-panel and test-bench use where connectors get connected and disconnected regularly. The silver-plated brass contacts resist oxidation and maintain contact resistance over those cycles better than unplated brass. The free-hanging (in-line) mounting style and bayonet lock on both ends mean it can be used as a barrel coupler between two cable-mounted BNC plugs without any panel cutout — just spin the knurled body and the bayonet slots engage. The body finish is silver, matching the standard BNC aesthetic for broadcast racks.","metaTitle":"TE Connectivity 1-1478043-0 BNC Adapter, 75 Ohm","metaDescription":"TE Connectivity Greenpar 1-1478043-0 BNC to BNC adapter, 75 Ohm impedance, male to male, straight plug. Silver-plated brass body, PTFE dielectric, 2 GHz max.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["RF / Coaxial Connectors"],"specifications":{"Mfr":"TE Connectivity AMP Connectors","Style":"Straight","Series":"Greenpar","Package":"Bulk","Features":"-","Includes":"-","Impedance":"75 Ohms","Body Finish":"Silver","Adapter Type":"Plug to Plug","Body Material":"Brass","Center Gender":"Male to Male","Mating Cycles":"500","Mounting Type":"Free Hanging (In-Line)","Adapter Series":"BNC to BNC","Fastening Type":"Bayonet Lock, Bayonet Lock","Insertion Loss":"-","Product Status":"Active","Conversion Type":"Same Series","Frequency - Max":"2 GHz","lifecycle_stage":"unknown","Mounting Feature":"-","Ingress Protection":"-","Base Product Number":"1478043","Dielectric Material":"Polytetrafluoroethylene (PTFE)","Operating Temperature":"-65°C ~ 165°C","Center Contact Plating":"Silver","Center Contact Material":"Brass","Convert To (Adapter End)":"BNC Plug, Male Pin","Convert From (Adapter End)":"BNC Plug, Male Pin"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$10.7800","stockQuantity":48,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/9e9b64b3f99142746a5a968fcf1ce799.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"isd-matrix-langgraph","citationUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/1-1478043-0","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/te-connectivity-amp-connectors/1-1478043-0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:46:37.382Z","lastPublished":"2026-07-22T19:46:37.382Z","indexable":true}}