{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"FOD817C300","brand":"onsemi","brandSlug":"onsemi","productSlug":"FOD817C300","canonicalUrl":"https://icboms.com/onsemi/FOD817C300","factsUrl":"https://icboms.com/api/mcp/products/FOD817C300","rawCanonicalId":null},"summary":{"shortDescription":"onsemi FOD817C300, single-channel DC-input transistor-output optoisolator, 4-DIP through-hole package, 5000Vrms isolation, 200-400% CTR at 5mA, -55°C to 110°C operating range.","salesMarkdown":"## Single-channel 5kV transistor optocoupler in 4-DIP The FOD817C300 is an onsemi single-channel optoisolator with a DC infrared LED input and a phototransistor output, housed in a standard 4-DIP (0.300\", 7.62mm) through-hole package. Current transfer ratio (CTR) is specified at 200% minimum and 400% maximum at a forward current of 5mA, giving a predictable gain window for logic-level interface or feedback loop design. ## Parametric fit for isolated feedback and signal transfer Output transistor can handle up to 70V collector-emitter and 50mA continuous current, with a typical Vce(sat) of 200mV at rated drive — sufficient for driving a microcontroller input or a gate driver stage. ## Active production — no immediate EOL risk ## Sourcing and availability for BOM commitment The 4-DIP through-hole package (0.300\" lead spacing) is a widely stocked form factor, compatible with standard socket or solder-in assembly.","metaTitle":"FOD817C300 Optoisolator — onsemi 5kV Transistor Output 4-DIP","metaDescription":"Active FOD817C300 from onsemi: 5000Vrms isolation, 200-400% CTR at 5mA, 4-DIP through-hole. Sourced per RFQ; datasheet available. Order FOD817C300.","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)":"400% @ 5mA","Current Transfer Ratio (Min)":"200% @ 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":"$0.5100","priceTiers":[{"qty":1,"price":"$0.51000","currency":"USD"},{"qty":10,"price":"$0.31600","currency":"USD"},{"qty":100,"price":"$0.18190","currency":"USD"},{"qty":1000,"price":"$0.14235","currency":"USD"},{"qty":2000,"price":"$0.13049","currency":"USD"},{"qty":5000,"price":"$0.11862","currency":"USD"},{"qty":10000,"price":"$0.11072","currency":"USD"},{"qty":25000,"price":"$0.10676","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/97f795ec3476128abe24ed3f2e223d6c.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/FOD817C300/alternatives.json"},"ai":{"faq":[{"question":"What is the current transfer ratio (CTR) of FOD817C300?","answer":"CTR is guaranteed between 200% and 400% at a forward current of 5mA, collector-emitter voltage 5V. This range ensures consistent gain from lot to lot."},{"question":"What is the direct replacement or equivalent for FOD817C300?","answer":"The base product number is FOD817. The 'C' suffix indicates the CTR bin (200-400%). Any FOD817 device with the same CTR bin and package is a functional equivalent. Confirm pin compatibility with your PCB layout."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/FOD817C300","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/FOD817C300 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}}