{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"FOD817B300","brand":"onsemi","brandSlug":"onsemi","productSlug":"FOD817B300","canonicalUrl":"https://icboms.com/onsemi/FOD817B300","factsUrl":"https://icboms.com/api/mcp/products/FOD817B300","rawCanonicalId":null},"summary":{"shortDescription":"onsemi FOD817B300, single-channel DC-input transistor-output optoisolator, 5000Vrms isolation, 4-DIP through-hole package, 130-260% CTR at 5mA, -55°C to 110°C operating range.","salesMarkdown":"## Galvanic barrier for industrial signal isolation The FOD817B300 is a single-channel optoisolator from onsemi's FOD817 family, delivering 5000Vrms isolation between a DC-input LED and a phototransistor output in a 4-DIP through-hole package. With a current transfer ratio (CTR) range of 130% to 260% at 5mA forward current, this B-bin part provides a predictable gain window for sizing the primary-side LED drive and the secondary-side pull-up resistor. The 70V output breakdown and 50mA continuous output current handle typical logic-level and low-power load switching in PLC digital inputs, AC motor drive feedback, and SMPS feedback loops. ROHS3 compliant, with no exemption conflicts for EU-market equipment. The 4-DIP (0.300\", 7.62mm) through-hole package is a standard footprint, readily hand-solderable or wave-solderable. ## Sourcing and package availability The 4-DIP body is compatible with existing pick-and-place feeders that handle tube-fed DIPs; for high-volume reels, check the FOD817 series for tape-and-reel variants. The closest functional alternative within the same family is the FOD817B (same CTR bin, same package), but the FOD817B300 suffix indicates a specific tube quantity or factory code — verify the BOM line's exact ordering code before substituting.","metaTitle":"FOD817B300 onsemi Optoisolator 5000Vrms Transistor Output","metaDescription":"onsemi FOD817B300 optoisolator: 5000Vrms isolation, transistor output, 130-260% CTR 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)":"260% @ 5mA","Current Transfer Ratio (Min)":"130% @ 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":"$0.4600","priceTiers":[{"qty":1,"price":"$0.46000","currency":"USD"},{"qty":10,"price":"$0.28600","currency":"USD"},{"qty":100,"price":"$0.16450","currency":"USD"},{"qty":1000,"price":"$0.12871","currency":"USD"},{"qty":2000,"price":"$0.11799","currency":"USD"},{"qty":5000,"price":"$0.10726","currency":"USD"},{"qty":10000,"price":"$0.10011","currency":"USD"},{"qty":25000,"price":"$0.09654","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/97f795ec3476128abe24ed3f2e223d6c.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/FOD817B300/alternatives.json"},"ai":{"faq":[{"question":"Is FOD817B300 RoHS compliant?","answer":"Yes, ROHS3 compliant — no lead, mercury, cadmium, or other restricted substances above the threshold. No exemption declarations needed for EU RoHS."},{"question":"How does FOD817B300 differ from FOD817A?","answer":"Both are single-channel DC-input transistor-output optoisolators in 4-DIP with 5000Vrms isolation. The primary difference is the CTR bin: FOD817B300 guarantees 130-260% at 5mA, while FOD817A covers 80-160% at 5mA. Choose the B bin when you need a tighter or higher minimum CTR for the LED drive current budget."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/FOD817B300","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/FOD817B300 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}}