{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"FOD817A300W","brand":"onsemi","brandSlug":"onsemi","productSlug":"FOD817A300W","canonicalUrl":"https://icboms.com/onsemi/FOD817A300W","factsUrl":"https://icboms.com/api/mcp/products/FOD817A300W","rawCanonicalId":null},"summary":{"shortDescription":"onsemi FOD817A300W, single-channel DC-input transistor-output optoisolator, 5000Vrms isolation, 4-DIP through-hole package, CTR 80-160% at 5mA, -55°C to 110°C.","salesMarkdown":"## What the 5000Vrms and CTR 80-160% mean for your BOM The FOD817A300W is a single-channel optoisolator from onsemi's FOD817 family, built for galvanic isolation between a DC input and a transistor output. The 5000Vrms isolation rating supports reinforced insulation in mains-connected power supplies, motor drives, and PLC I/O modules — enough to pass IEC 60950-1 basic insulation for 250VAC working voltage. The 'A' CTR bin — 80% minimum, 160% maximum at 5mA forward current — gives you a predictable LED-to-output current gain. At 5mA input, the output can sink up to 50mA with a Vce saturation of 200mV typical. That 80% floor means you can guarantee the output drives a 5V logic input without adding a pull-up resistor. ## Through-hole 4-DIP and temperature range for industrial environments The 4-DIP (0.400-inch, 10.16mm) through-hole package is the standard footprint for wave-solder assembly and manual rework — no hot-air profile needed. The -55°C to 110°C operating range covers outdoor telecom cabinets, engine-bay electronics, and cold-chain storage, not just office-grade 0-70°C. The 4µs rise and 3µs fall times limit switching to low-frequency signals like 50/60Hz line sync or DC bus fault detection. ## Active lifecycle and ROHS3 compliance — no end-of-life concern ROHS3 compliant — no exemption-based lead in the solder terminations. ## How the 'A' CTR bin compares to FOD817B and FOD817C Within the FOD817 family, the CTR bin is the only parametric difference. The FOD817A300W (80-160%) sits between the FOD817B (130-260%) and the FOD817C (200-400%). If your design needs more output current at the same 5mA input, step up to the B or C bin — the pinout, package, and isolation rating are identical. No second-source cross is needed; all are onsemi.","metaTitle":"FOD817A300W onsemi Optoisolator 5000Vrms Transistor Output","metaDescription":"FOD817A300W onsemi optoisolator: 5000Vrms isolation, 80-160% CTR at 5mA, transistor output, -55°C to 110°C, 4-DIP through-hole. Active production, ROHS3.","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 (0.400\\\", 10.16mm)","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)":"160% @ 5mA","Current Transfer Ratio (Min)":"80% @ 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":"$0.5200","priceTiers":[{"qty":1,"price":"$0.52000","currency":"USD"},{"qty":10,"price":"$0.33900","currency":"USD"},{"qty":100,"price":"$0.22430","currency":"USD"},{"qty":1000,"price":"$0.17319","currency":"USD"},{"qty":2000,"price":"$0.15650","currency":"USD"},{"qty":5000,"price":"$0.14607","currency":"USD"},{"qty":10000,"price":"$0.14085","currency":"USD"},{"qty":25000,"price":"$0.13876","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/97f795ec3476128abe24ed3f2e223d6c.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/FOD817A300W/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/FOD817A300W","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/FOD817A300W 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}}