{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"502750-1","brand":"TE Connectivity AMP Connectors","brandSlug":"te-connectivity-amp-connectors","productSlug":"502750-1","canonicalUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/502750-1","factsUrl":"https://icsourcedirect.com/api/mcp/products/502750-1","rawCanonicalId":null},"summary":{"shortDescription":"TE Connectivity OPTIMATE series ST simplex singlemode fiber coupler, 502750-1, panel mount bulkhead, ceramic ferrule, zinc housing, UL94 V-0, includes dust cap.","salesMarkdown":"## TE 502750-1 OPTIMATE ST Simplex Singlemode Coupler The TE Connectivity 502750-1 is an OPTIMATE series ST-to-ST simplex coupler built for singlemode fiber. It joins two ST-terminated simplex patch cables or pigtails in a panel-mount bulkhead feedthrough — the ceramic ferrule alignment sleeve keeps insertion loss low by centering the fiber cores within the 9/125 µm singlemode tolerance. A dust cap ships with the coupler to protect the sleeve when the port is unmated. There is no official direct-replacement order code on record from the manufacturer. If your design can accept a parametric equivalent, the replacement search should start with a current-production ST simplex singlemode coupler from the same OPTIMATE family; confirm the panel cutout and ferrule alignment match your application. Singlemode means the alignment sleeve is precision-bored for 9/125 µm fiber — using this coupler on a multimode (50/125 or 62.5/125) link will work optically but adds unnecessary cost. Simplex means one fiber passes through; if your link is duplex (two fibers, one transmit one receive), you need two of these couplers or a duplex adapter. The ST interface uses a bayonet-style twist-lock — common in telco and CATV plant, field-terminated with ST connectors. Panel-mount bulkhead requires a round cutout and a hex nut to secure the coupler to the enclosure wall. The -20°C to 75°C operating range covers indoor telecom closets and outdoor cabinets in temperate climates; derate the housing if the coupler sits near heat sources inside a sealed enclosure.","metaTitle":"TE OPTIMATE 502750-1 ST Simplex Singlemode Coupler, Obsolete","metaDescription":"TE 502750-1 OPTIMATE ST simplex singlemode fiber coupler, panel-mount bulkhead, ceramic ferrule, zinc housing, UL94 V-0.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["RF / Coaxial Connectors"],"specifications":{"Mfr":"TE Connectivity AMP Connectors","Mode":"Singlemode","Type":"Coupler","Color":"Silver","Series":"OPTIMATE","Package":"Bulk","Features":"Dust Cap","Mounting Type":"Panel Mount, Bulkhead","Product Status":"Obsolete","Simplex/Duplex":"Simplex","lifecycle_stage":"unknown","Ferrule Material":"Ceramic","Housing Material":"Zinc","Ingress Protection":"-","Base Product Number":"502750","Operating Temperature":"-20°C ~ 75°C","Convert To (Adapter End)":"ST Receptacle","Convert From (Adapter End)":"ST Receptacle","Material Flammability Rating":"UL94 V-0"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$8.3700","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/72c20702745f4bbef7f33077fe75c82c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy the 502750-1?","answer":"The 502750-1 is obsolete and no longer in factory production."},{"question":"Is the 502750-1 obsolete?","answer":"Yes, TE Connectivity lists the 502750-1 as Obsolete. There is no official direct replacement part number from TE. For a current-production alternative, look for a TE OPTIMATE ST simplex singlemode coupler with the same panel cutout dimensions."},{"question":"Does the 502750-1 come with a dust cap?","answer":"Yes, the 502750-1 includes a dust cap as a standard feature to protect the ceramic ferrule alignment sleeve when the port is not in use."},{"question":"What is the 502750-1's listed mode and type?","answer":"The 502750-1 is a Singlemode coupler of the ST-to-ST adapter type, in a Simplex configuration — one fiber path per coupler."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"isd-matrix-langgraph","citationUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/502750-1","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/502750-1 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}}