{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"FOD817SD","brand":"onsemi","brandSlug":"onsemi","productSlug":"FOD817SD","canonicalUrl":"https://icboms.com/onsemi/FOD817SD","factsUrl":"https://icboms.com/api/mcp/products/FOD817SD","rawCanonicalId":null},"summary":{"shortDescription":"onsemi FOD817SD optoisolator, single-channel DC-input transistor output, 5000 Vrms isolation, 50-600% CTR at 5 mA, 4-SMD gull wing package, -55°C to 110°C.","salesMarkdown":"The FOD817SD delivers 5000 Vrms galvanic isolation between the DC input and the transistor output — enough to separate a 24 V PLC digital input from a 5 V logic rail or to break ground loops in a motor drive feedback path. ## Temperature range and switching speed Rated for -55°C to 110°C operating ambient, the FOD817SD suits both cold-start industrial enclosures and hot engine-bay electronics. The typical rise and fall times are 4 µs and 3 µs respectively — fast enough for 100 kHz-level feedback loops or low-speed serial isolation, but not intended for high-speed data links. Output transistor saturation voltage is 200 mV max, keeping the logic-low level clean when the phototransistor is fully on. Maximum output voltage is 70 V, and continuous output current per channel is 50 mA — adequate for driving a downstream optocoupler or a small relay coil. The gull wing leads provide visual solder-joint inspection access and moderate standoff for cleaning under the body. ## Active lifecycle — sourcing posture The base product number is FOD817, and this variant (FOD817SD) is the surface-mount gull-wing version of the standard DIP-4 FOD817 series.","metaTitle":"FOD817SD onsemi Optoisolator, 5000 Vrms, 50-600% CTR","metaDescription":"FOD817SD onsemi optoisolator: 5000 Vrms isolation, 50-600% CTR at 5 mA, -55°C to 110°C, 4-SMD gull wing. Active production, sourced to order.","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":"4-SMD, Gull Wing","Product Status":"Active","lifecycle_stage":"eol_hot","Number of Channels":"1","Base Product Number":"FOD817","Voltage - Isolation":"5000Vrms","Vce Saturation (Max)":"200mV","Operating Temperature":"-55°C~110°C","Rise / Fall Time (Typ)":"4µs, 3µs","Voltage - Output (Max)":"70V","Supplier Device Package":"4-SMD","Current - Output / Channel":"50mA","Current Transfer Ratio (Max)":"600% @ 5mA","Current Transfer Ratio (Min)":"50% @ 5mA","Voltage - Forward (Vf) (Typ)":"1.2V","Turn On / Turn Off Time (Typ)":"-","Current - DC Forward (If) (Max)":"50 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.5700","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/97f795ec3476128abe24ed3f2e223d6c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What input type does the FOD817SD support?","answer":"The input type is DC — the LED side is driven by a DC forward current, with a typical forward voltage of 1.2 V and a maximum forward current of 50 mA."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/FOD817SD","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/FOD817SD 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}}