{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"FOD817D300","brand":"onsemi","brandSlug":"onsemi","productSlug":"FOD817D300","canonicalUrl":"https://icboms.com/onsemi/FOD817D300","factsUrl":"https://icboms.com/api/mcp/products/FOD817D300","rawCanonicalId":null},"summary":{"shortDescription":"onsemi FOD817D300, single-channel DC-input transistor-output optoisolator, 5000Vrms isolation, 4-DIP (0.300\", 7.62mm) through-hole package, CTR 300–600% at 5 mA, -55°C to 110°C operating range.","salesMarkdown":"## Isolation rating and what it buys the design The FOD817D300 delivers 5000Vrms isolation between input and output — enough for reinforced insulation in mains-referenced circuits like switch-mode PSU feedback loops, motor-drive IGBT gate drive interfaces, and PLC digital input modules where safety isolation is a regulatory requirement. ## CTR bin D — LED drive margin for the BOM This 'D' suffix bin specifies a current transfer ratio of 300% minimum and 600% maximum at If=5 mA. Compared to the FOD817A (80–160%) or FOD817C (200–400%) bins, the D bin gives you headroom to use a lower-cost, lower-efficiency LED or to reduce the forward current and still guarantee the output transistor saturates — useful when the input-side supply is tight. ## Temperature range and package for assembly planning The 4-DIP through-hole package (0.300\" body width) is wave-solder friendly and easy to hand-rework — no fine-pitch stencil needed. The base product number FOD817 is a long-running onsemi family, so supply continuity is stable.","metaTitle":"FOD817D300 onsemi Optoisolator, 5000Vrms, 4-DIP, Active","metaDescription":"onsemi FOD817D300 optoisolator: 5000Vrms isolation, transistor output, CTR 300-600% at 5mA, -55°C to 110°C, 4-DIP through-hole.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Optoisolators"],"specifications":{"Mfr":"onsemi","Series":"-","Package":"Tube","Input Type":"DC","Output Type":"Transistor","Mounting Type":"Through Hole","Package / Case":"4-DIP (0.300\\\", 7.62mm)","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-DIP","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":"$0.5700","priceTiers":[{"qty":1,"price":"$0.60000","currency":"USD"},{"qty":10,"price":"$0.36800","currency":"USD"},{"qty":100,"price":"$0.21160","currency":"USD"},{"qty":1000,"price":"$0.16561","currency":"USD"},{"qty":2000,"price":"$0.15182","currency":"USD"},{"qty":5000,"price":"$0.13801","currency":"USD"},{"qty":10000,"price":"$0.12881","currency":"USD"},{"qty":25000,"price":"$0.12421","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/97f795ec3476128abe24ed3f2e223d6c.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/FOD817D300/alternatives.json"},"ai":{"faq":[{"question":"Is FOD817D300 a direct replacement for FOD817A300W or FOD817C300W?","answer":"All three share the same package (4-DIP), isolation (5000Vrms), and switching speed (4µs rise, 3µs fall). The difference is the CTR bin: FOD817A300W is 80–160%, FOD817C300W is 200–400%, and FOD817D300 is 300–600%. If your design was validated with the A or C bin, the D bin will work as long as the higher maximum CTR does not cause saturation issues at the minimum LED current — check your worst-case CTR margin."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/FOD817D300","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/FOD817D300 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}}