{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"FODM217D","brand":"onsemi","brandSlug":"onsemi","productSlug":"FODM217D","canonicalUrl":"https://icboms.com/onsemi/FODM217D","factsUrl":"https://icboms.com/api/mcp/products/FODM217D","rawCanonicalId":null},"summary":{"shortDescription":"onsemi FODM217D, series FODM217, single-channel DC-input transistor-output optoisolator, 3750Vrms isolation, 4-SOP surface-mount package, tube delivery.","salesMarkdown":"## 3750Vrms barrier in a 4-SOP footprint The FODM217D is a single-channel optoisolator from onsemi's FODM217 series, delivering 3750Vrms isolation between a DC-input LED and a phototransistor output. The 4-SOP package (4.40mm width) fits designs where board space is tight but reinforced isolation is required — common in industrial I/O modules, PLC interfaces, and isolated sensor feedback paths. With a minimum current transfer ratio of 300% at 5mA forward current, the part guarantees the output transistor saturates even when the LED is driven at modest current, which helps keep the input-side power budget low. The 80V output rating covers 24V and 48V bus rails with margin. ## Temperature range and switching speed Rated from -55°C to 110°C, the FODM217D handles cold-start outdoor equipment and warm enclosures in factory automation. The 2µs rise and 3µs fall times (typical) set the practical switching frequency ceiling around 100 kHz — adequate for isolating slow digital signals, relay drivers, or status feedback, but not for high-speed data links. Turn-on and turn-off times are both 3µs typical, meaning the output transition symmetry is close enough for most non-timing-critical isolation gates. The 400mV max Vce(sat) at the output ensures low voltage drop when the transistor is fully on, preserving headroom for the downstream logic input. ## Active production and compliance status It is ROHS3 compliant, meeting the current EU restriction directive.","metaTitle":"FODM217D onsemi 3750Vrms 4-SOP Transistor Output","metaDescription":"onsemi FODM217D optoisolator: 3750Vrms isolation, 300-600% CTR at 5mA, 80V output, -55°C to 110°C. Active production, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":"FODM217","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Optoisolators"],"specifications":{"Series":"FODM217","Package":"Tube","Input Type":"DC","Output Type":"Transistor","Mounting Type":"Surface Mount","Package / Case":"4-SOIC (0.173\\\", 4.40mm Width)","lifecycle_stage":"eol_hot","Number of Channels":"1","Voltage - Isolation":"3750Vrms","Vce Saturation (Max)":"400mV","Operating Temperature":"-55°C ~ 110°C","Rise / Fall Time (Typ)":"2µs, 3µs","Voltage - Output (Max)":"80V","Supplier Device Package":"4-SOP","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)":"3µs, 3µs","Current - DC Forward (If) (Max)":"50 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.61","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.61000","currency":"USD"},{"qty":10,"price":"$0.39800","currency":"USD"},{"qty":100,"price":"$0.26340","currency":"USD"},{"qty":1000,"price":"$0.20337","currency":"USD"},{"qty":2000,"price":"$0.18377","currency":"USD"},{"qty":5000,"price":"$0.17152","currency":"USD"},{"qty":10000,"price":"$0.16539","currency":"USD"},{"qty":25000,"price":"$0.16294","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/2a1a955f5e4901578188c509b39f9c66.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is a suitable replacement for FODM217D?","answer":"Within the same FODM217 series, the FODM217A offers the same 3750Vrms isolation, 4-SOP package, and 400mV Vce(sat), but with a different CTR bin. The FODM217BR2V is identical electrically but supplied on tape and reel. Outside the series, the FODM121B provides similar isolation but with a narrower -40°C to 110°C temperature range and higher output current (80mA). Verify CTR and temperature requirements before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/FODM217D","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/FODM217D when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T20:08:59.295Z","lastPublished":"2026-07-17T20:08:59.295Z","indexable":true}}