{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"504566-1","brand":"TE Connectivity AMP Connectors","brandSlug":"te-connectivity-amp-connectors","productSlug":"504566-1","canonicalUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/504566-1","factsUrl":"https://icsourcedirect.com/api/mcp/products/504566-1","rawCanonicalId":null},"summary":{"shortDescription":"TE Connectivity OPTIMATE FSMA fiber optic plug, 504566-1, multimode, simplex, threaded fastening, free-hanging, 3.1mm cable diameter, -1.3dB typical attenuation, includes dust cap and strain relief.","salesMarkdown":"## FSMA Plug for Multimode Fiber — Now Obsolete The TE Connectivity 504566-1 is an OPTIMATE series FSMA fiber optic plug, designed for multimode simplex termination. It uses a threaded coupling nut for secure mating, accepts a 3.1mm cable jacket, and includes both a dust cap and a strain relief boot as standard. Typical insertion loss is rated at -1.3dB. TE Connectivity has officially classified the 504566-1 as Obsolete. No direct form-fit-function replacement is listed by the manufacturer. Buyers should verify the fiber termination requirements — FSMA is a legacy interface, and a migration to a modern connector such as an SC or LC simplex may be the practical path forward. ## What You Get in the Package The connector ships in bulk packaging and includes a black strain relief boot and a dust cap fitted over the ferrule. The body is nickel-plated copper alloy, the ferrule is stainless steel. The boot colour is black; the housing body is silver.","metaTitle":"TE 504566-1 OPTIMATE FSMA Plug, Multimode, Obsolete","metaDescription":"TE 504566-1 OPTIMATE FSMA fiber plug, multimode, simplex, threaded, 3.1mm cable, -1.3dB loss. Obsolete — sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["RF / Coaxial Connectors"],"specifications":{"Mfr":"TE Connectivity AMP Connectors","Mode":"Multimode","Series":"OPTIMATE","Package":"Bulk","Features":"Dust Cap, Strain Relief","Boot Color":"Black","Reflection":"-","Body Material":"Copper Alloy, Nickel Plated","Housing Color":"Silver","Mating Cycles":"200","Mounting Type":"Free Hanging (In-Line)","Cable Diameter":"3.1mm","Connector Type":"Plug","Fastening Type":"Threaded","Product Status":"Obsolete","Simplex/Duplex":"Simplex","Connector Style":"FSMA","lifecycle_stage":"unknown","Ferrule Material":"Stainless Steel","Housing Material":"-","Attenuation - Typ":"-1.3dB","Ingress Protection":"-","Base Product Number":"504566","Fiber Core Diameter":"-","Operating Temperature":"-40°C ~ 85°C","Fiber Cladding Diameter":"125µm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/7cab78352608c3683b30da11c22a7026.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is the TE 504566-1 obsolete?","answer":"Yes, TE Connectivity has marked the 504566-1 as Obsolete. No direct replacement is listed."},{"question":"What is the replacement for 504566-1?","answer":"TE Connectivity does not list a direct form-fit-function replacement for the 504566-1. For new designs, consider migrating to a modern simplex connector such as an SC or LC multimode plug."},{"question":"Does the 504566-1 come with a dust cap?","answer":"Yes, the 504566-1 includes a dust cap and a strain relief boot as standard features."},{"question":"What cable diameter does the 504566-1 support?","answer":"The 504566-1 is designed for a 3.1mm cable diameter, typical of a jacketed simplex fiber patch cord."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"isd-matrix-langgraph","citationUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/504566-1","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/504566-1 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T14:34:25.888Z","lastPublished":"2026-07-20T14:34:25.888Z","indexable":true}}