{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"FOD2741CSD","brand":"onsemi","brandSlug":"onsemi","productSlug":"FOD2741CSD","canonicalUrl":"https://icboms.com/onsemi/FOD2741CSD","factsUrl":"https://icboms.com/api/mcp/products/FOD2741CSD","rawCanonicalId":null},"summary":{"shortDescription":"onsemi FOD2741CSD optoisolator, 1-channel DC input, transistor output, 5000Vrms isolation, 100-200% CTR, 8-SMD gull wing package, Tape & Reel.","salesMarkdown":"The FOD2741CSD: It provides 5000Vrms of galvanic isolation between input and output, which is the primary parameter for safety isolation in power supply feedback or signal isolation applications. The current transfer ratio (CTR) is specified at 100% minimum and 200% maximum, tested at a forward current of 10 mA. This CTR range defines the gain margin for the optocoupler in a given circuit — a tight 100-200% band means the designer can count on consistent drive strength across the production lot without over-designing the sense resistor or pull-up. Output ratings include a maximum collector-emitter voltage of 30V and a continuous output current of 50 mA per channel. The Vce saturation is 400 mV maximum, which sets the voltage drop across the output transistor when fully on — relevant for low-side switching where the residual voltage subtracts from the load supply. ## Package and temperature grade The 8-SMD gull wing package (supplier device package 8-SMD) is a surface-mount footprint suited for automated assembly. The Tape & Reel (TR) packaging option is intended for high-volume pick-and-place lines — not for hand-prototyping without a carrier. This temperature grade is typical for general-purpose optoisolators used in AC-DC converters, PLC input modules, and motor drive feedback paths that do not require extended automotive or military temperature ranges. The FOD2741CSD is classified as Obsolete by onsemi. This means the manufacturer has discontinued production and there is no scheduled last-time buy window remaining. For existing BOM lines that specify this exact ordering code, procurement must source through independent distribution channels — available surplus or new-old-stock inventory, confirmed at RFQ. The base product number FOD274 may share a common die and pinout with other package variants, but no pin-compatible drop-in replacement is documented on the official record.","metaTitle":"onsemi FOD2741CSD Optoisolator, 5000Vrms, 8-SMD","metaDescription":"onsemi FOD2741CSD optoisolator, 1-channel transistor output, 5000Vrms isolation, 100-200% CTR at 10mA.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Optoisolators"],"specifications":{"Mfr":"onsemi","Series":"-","Package":"Tape & Reel (TR)","Input Type":"DC","Output Type":"Transistor","Mounting Type":"Surface Mount","Package / Case":"8-SMD, Gull Wing","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Number of Channels":"1","Base Product Number":"FOD274","Voltage - Isolation":"5000Vrms","Vce Saturation (Max)":"400mV","Operating Temperature":"-40°C ~ 85°C","Rise / Fall Time (Typ)":"-","Voltage - Output (Max)":"30V","Supplier Device Package":"8-SMD","Current - Output / Channel":"50mA","Current Transfer Ratio (Max)":"200% @ 10mA","Current Transfer Ratio (Min)":"100% @ 10mA","Voltage - Forward (Vf) (Typ)":"1.5V (Max)","Turn On / Turn Off Time (Typ)":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.7500","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/68430cecde9bc72afdbde32963ab63a1.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What package does the FOD2741CSD come in?","answer":"The FOD2741CSD is supplied in an 8-SMD gull wing package (supplier device package 8-SMD), in Tape & Reel (TR) format for automated surface-mount assembly."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/FOD2741CSD","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/FOD2741CSD when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T06:32:09.341Z","lastPublished":"2026-07-21T06:32:09.341Z","indexable":true}}