{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"FOD2741BSD","brand":"onsemi","brandSlug":"onsemi","productSlug":"FOD2741BSD","canonicalUrl":"https://icboms.com/onsemi/FOD2741BSD","factsUrl":"https://icboms.com/api/mcp/products/FOD2741BSD","rawCanonicalId":null},"summary":{"shortDescription":"onsemi FOD2741BSD single-channel optoisolator, DC input, transistor output, 5000Vrms isolation, 100-200% CTR at 10mA, 8-SMD Gull Wing package, -40 to 85°C.","salesMarkdown":"## Package and rework reality The FOD2741BSD: This is an 8-SMD Gull Wing package (8-SMD supplier device package) — the leads fan out flat, so you can inspect every joint visually and touch up a cold solder with a standard iron. No hidden balls, no underfill. The 5000Vrms isolation rating means the mould compound is thick; it holds heat longer under hot air, so let the preheat soak a few extra seconds before you lift the part, or you risk pad delamination. ## What the CTR range means for your drive margin The current transfer ratio is guaranteed 100% minimum to 200% maximum at 10 mA forward current. That spread tells you the LED-to-phototransistor gain can vary by 2:1 across reels. If your design relies on the output saturating at a specific load current, you need to bias the input LED so the weakest unit (100% CTR) still drives the output into the 400 mV Vce saturation ceiling. The 50 mA absolute output per channel gives you headroom for driving a logic gate input or a small relay coil. ## Temperature grade and deployment That covers most factory-floor PLC I/O modules, motor-drive feedback isolation, and HVAC controller boards. The 5000Vrms isolation is enough for reinforced insulation in mains-voltage applications per IEC 60950-1, so this part fits where you need to separate a 24 VDC control side from a 230 VAC power stage. ## Active lifecycle — sourcing posture Listed as Active by onsemi (product status current). The base product number is FOD2741, so any PCN or die revision will carry that prefix.","metaTitle":"onsemi FOD2741BSD Optoisolator, 5000Vrms, 8-SMD Gull Wing","metaDescription":"onsemi FOD2741BSD single-channel optoisolator, 5000Vrms isolation, 100-200% CTR at 10mA, -40 to 85°C. Active production, sourced to order. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Optoisolators"],"specifications":{"Mfr":"onsemi","Series":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","Input Type":"DC","Output Type":"Transistor","Mounting Type":"Surface Mount","Package / Case":"8-SMD, Gull Wing","Product Status":"Active","lifecycle_stage":"eol_hot","Number of Channels":"1","Base Product Number":"FOD2741","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":"$1.8400","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/68430cecde9bc72afdbde32963ab63a1.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/FOD2741BSD","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/FOD2741BSD when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}