{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"FOD2741ASV","brand":"onsemi","brandSlug":"onsemi","productSlug":"FOD2741ASV","canonicalUrl":"https://icboms.com/onsemi/FOD2741ASV","factsUrl":"https://icboms.com/api/mcp/products/FOD2741ASV","rawCanonicalId":null},"summary":{"shortDescription":"onsemi FOD2741ASV Optoisolator, 1-channel, DC input, Transistor output, 5000Vrms isolation, 100-200% CTR at 10mA, 8-SMD Gull Wing package, Bulk.","salesMarkdown":"## 5000Vrms isolation in an 8-SMD Gull Wing package The onsemi FOD2741ASV is a single-channel optoisolator with a DC-input LED and a phototransistor output, rated for 5000Vrms isolation between primary and secondary sides. That isolation voltage covers reinforced insulation requirements in mains-connected power supplies, motor drives, and industrial I/O modules where galvanic separation is needed to protect low-voltage logic from high-voltage transients or ground loops. Housed in an 8-SMD Gull Wing package (Supplier Device Package 8-SMD), it is designed for reflow soldering on standard surface-mount boards. The Gull Wing leads provide a visual solder-joint inspection point and relieve mechanical stress between the package body and the PCB during thermal cycling. ## CTR range and drive margin for the downstream load A 100% CTR means that with 10mA into the LED, the output transistor can sink at least 10mA — enough to drive a standard logic gate input or a low-power relay coil directly. The 200% ceiling ensures the output does not saturate too hard, which would slow the turn-off time in high-speed applications. The output transistor is rated for 30V maximum collector-emitter voltage and 50mA continuous current per channel, with a saturation voltage of 400mV max at the rated current. This makes the FOD2741ASV suitable for factory-floor PLCs, motor-drive feedback circuits, and outdoor telecom equipment where ambient temperatures can swing below freezing or above 70°C inside an enclosure.","metaTitle":"onsemi FOD2741ASV Optoisolator, 5000Vrms, 8-SMD Gull Wing","metaDescription":"Active-production onsemi FOD2741ASV optoisolator, 1-channel DC input, transistor output, 5000Vrms isolation, 100-200% CTR at 10mA, -40 to 85°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Optoisolators"],"specifications":{"Mfr":"onsemi","Series":"-","Package":"Bulk","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":"$0.7634","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/68430cecde9bc72afdbde32963ab63a1.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the current transfer ratio (CTR) range for FOD2741ASV?","answer":"CTR is specified at 100% minimum and 200% maximum, both measured at 10mA forward current. This range ensures the output can drive standard logic inputs or small relays without an external buffer."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/FOD2741ASV","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/FOD2741ASV 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}}