{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"FODM1009","brand":"onsemi","brandSlug":"onsemi","productSlug":"FODM1009","canonicalUrl":"https://icboms.com/onsemi/FODM1009","factsUrl":"https://icboms.com/api/mcp/products/FODM1009","rawCanonicalId":null},"summary":{"shortDescription":"onsemi FODM1009 single-channel DC-input transistor-output optocoupler, 5000Vrms isolation, 200–400% CTR at 5mA, 4-SMD gull-wing package, -40°C to 110°C operating range.","salesMarkdown":"## 5000Vrms isolation in a rework-friendly 4-SOP The FODM1009 is a single-channel optocoupler from onsemi with a DC input and transistor output, delivering 5000Vrms of galvanic isolation in a 4-SMD gull-wing package. That isolation rating covers the reinforced insulation requirements for many industrial and appliance power supplies, motor drives, and PLC digital inputs. ## CTR margin and switching speed for BOM fit The current transfer ratio is specified from 200% to 400% at a 5mA forward current, giving you a 2× gain margin over the minimum. That means the output transistor can saturate reliably even when the LED degrades over temperature or time. Typical rise and fall times are 5.7µs and 8.5µs respectively, which is fast enough for 10–20 kHz switching or status feedback loops but not for high-speed data isolation. The output transistor is rated for 70V Vce and 50mA continuous current, so it can drive a small relay coil, a logic gate input, or a 5V/24V PLC module directly without a buffer transistor. ## Active production, surface-mount package The -40°C to 110°C operating range covers industrial and outdoor applications where commercial-grade parts would drift.","metaTitle":"FODM1009 Optoisolator – 5000Vrms, Transistor Output","metaDescription":"onsemi FODM1009 single-channel DC-input transistor-output optocoupler. 5000Vrms isolation, 200–400% CTR at 5mA, -40°C to 110°C. Active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Optoisolators"],"specifications":{"Package":"Tube","Input Type":"DC","Output Type":"Transistor","Mounting Type":"Surface Mount","Package / Case":"4-SMD, Gull Wing","lifecycle_stage":"eol_hot","Number of Channels":"1","Voltage - Isolation":"5000Vrms","Vce Saturation (Max)":"300mV","Operating Temperature":"-40°C ~ 110°C","Rise / Fall Time (Typ)":"5.7µs, 8.5µs","Voltage - Output (Max)":"70V","Supplier Device Package":"4-SOP","Current - Output / Channel":"50mA","Current Transfer Ratio (Max)":"400% @ 5mA","Current Transfer Ratio (Min)":"200% @ 5mA","Voltage - Forward (Vf) (Typ)":"1.4V","Current - DC Forward (If) (Max)":"50 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.7","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.73000","currency":"USD"},{"qty":10,"price":"$0.47900","currency":"USD"},{"qty":100,"price":"$0.31700","currency":"USD"},{"qty":1000,"price":"$0.24476","currency":"USD"},{"qty":2000,"price":"$0.22117","currency":"USD"},{"qty":5000,"price":"$0.20642","currency":"USD"},{"qty":10000,"price":"$0.19905","currency":"USD"},{"qty":25000,"price":"$0.19610","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/c7ba3664ba302aea4448aa3e3b2cf2de.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is FODM1009 available in a surface-mount package?","answer":"Yes, it comes in a 4-SMD gull-wing package (4-SOP). The gull-wing leads are visible and inspectable after soldering, and the part is hand-reworkable with hot air."},{"question":"When sourcing FODM1009, what is the closest functional second-source?","answer":"The FODM2701 is a DC-input transistor-output optocoupler in the same 4-SOP package, but its isolation is 3750Vrms versus 5000Vrms. If your design requires the full 5000Vrms, the FODM1009 is the correct choice. The FODM121B and FODM121R2 are also 3750Vrms parts with slightly higher Vce saturation (400mV)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/FODM1009","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/FODM1009 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T20:07:05.266Z","lastPublished":"2026-07-17T20:07:05.266Z","indexable":true}}