{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"FOD817DSD","brand":"onsemi","brandSlug":"onsemi","productSlug":"FOD817DSD","canonicalUrl":"https://icboms.com/onsemi/FOD817DSD","factsUrl":"https://icboms.com/api/mcp/products/FOD817DSD","rawCanonicalId":null},"summary":{"shortDescription":"onsemi FOD817DSD, single-channel DC-input transistor-output optoisolator, 5000Vrms isolation, 4-SMD gull-wing package, active production.","salesMarkdown":"## 5000Vrms isolation in a 4-SMD gull-wing The FOD817DSD is a single-channel optoisolator from onsemi's FOD817 family, delivering 5000Vrms of galvanic isolation between a DC input LED and a phototransistor output. The 4-SMD gull-wing package (4-PDIP-GW footprint) is surface-mount, so it reflows with the board — no hand-soldering required unless you are doing a field swap. The 200mV max Vce saturation means the output transistor will not drop much voltage when on, which matters if you are driving a logic input or a low-current relay coil. ## CTR spread and temperature range Current transfer ratio is specified at 300% min and 600% max at If=5mA. That is a 2:1 spread — if your circuit depends on a tight CTR (e.g., for a precise threshold), you may need to sort by bin or use the FOD817A variant with a narrower range. ## Active production, no end-of-life watch The base product number FOD817 has a long production history, so supply continuity is reasonable. We source it per RFQ — confirm your quantity and we will quote current pricing and lead time.","metaTitle":"FOD817DSD Optoisolator 5kV Transistor Output 4-SMD Gull Wing","metaDescription":"onsemi FOD817DSD active optoisolator: 5000Vrms isolation, DC input, transistor output, 4-SMD gull wing, -55°C to 110°C. Sourced per RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","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-PDIP-GW","Current - Output / Channel":"50mA","Current Transfer Ratio (Max)":"600% @ 5mA","Current Transfer Ratio (Min)":"300% @ 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":"$0.6300","priceTiers":[{"qty":1,"price":"$0.66000","currency":"USD"},{"qty":10,"price":"$0.40400","currency":"USD"},{"qty":100,"price":"$0.23260","currency":"USD"},{"qty":1000,"price":"$0.18202","currency":"USD"},{"qty":2000,"price":"$0.16686","currency":"USD"},{"qty":5000,"price":"$0.15169","currency":"USD"},{"qty":10000,"price":"$0.14157","currency":"USD"},{"qty":25000,"price":"$0.13652","currency":"USD"},{"qty":50000,"price":"$0.13146","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/1beb81cf5e1c85358f551e0cb2f7b048.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/FOD817DSD/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between FOD817DSD and FOD817ASD?","answer":"Both are from the same FOD817 family with identical isolation (5000Vrms), package (4-SMD gull wing), and temperature range. The key difference is the CTR bin: FOD817DSD guarantees 300% to 600% at 5mA, while FOD817ASD covers a lower or narrower range (check its datasheet for exact min/max). For a drop-in replacement, verify your circuit's CTR tolerance."},{"question":"Can FOD817DSD replace FOD817D?","answer":"FOD817D is the through-hole DIP-4 version of the same die. The FOD817DSD is the surface-mount gull-wing variant. Electrically they are identical — same isolation, same CTR, same temperature range. Mechanically, the DIP part fits a 2.54mm-pitch socket; the SMD part requires a solder reflow footprint. If your board has the SMD land pattern, yes, it is a direct replacement."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/FOD817DSD","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/FOD817DSD 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}}