{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"FOD4218SDV","brand":"onsemi","brandSlug":"onsemi","productSlug":"FOD4218SDV","canonicalUrl":"https://icboms.com/onsemi/FOD4218SDV","factsUrl":"https://icboms.com/api/mcp/products/FOD4218SDV","rawCanonicalId":null},"summary":{"shortDescription":"onsemi FOD4218SDV, single-channel triac-output optoisolator, 5000 Vrms isolation, 800 V off-state, 10 kV/µs static dV/dt, surface-mount 6-SMD gull wing package.","salesMarkdown":"## Triac output with 10 kV/µs dV/dt for noisy mains The FOD4218SDV is a single-channel triac-output optoisolator from onsemi, designed to switch AC loads while maintaining 5000 Vrms galvanic isolation between control and load sides. Its 10 kV/µs minimum static dV/dt rating means the output triac resists false turn-on from fast voltage transients on the AC line — a common failure in motor-drive and relay-replacement circuits where inductive switching generates high dv/dt edges. ## 800 V off-state and 1.3 mA LED trigger current The 800 V off-state voltage allows direct switching of 277 VAC or 480 VAC lines with margin. The maximum LED trigger current of 1.3 mA means a standard 3.3 V or 5 V MCU GPIO can drive it through a series resistor without a separate transistor buffer — saving board space and BOM cost. Typical forward voltage is 1.28 V, and the hold current is 500 µA, which keeps the triac latched once triggered until the load current drops below that threshold near the AC zero crossing. ## Active production with multiple agency approvals The package is a 6-SMD gull wing supplied in Tape & Reel or Cut Tape, suitable for reflow assembly. ROHS3 compliant. For a tube-packed alternative, the FOD4218SV shares identical electrical ratings — same 10 kV/µs dV/dt, 800 V off-state, and 60 µs turn-on time — differing only in shipping format.","metaTitle":"FOD4218SDV onsemi Optoisolator Triac Output 5000Vrms 800V","metaDescription":"FOD4218SDV onsemi optoisolator with triac output, 5000 Vrms isolation, 800 V off-state, 10 kV/µs dV/dt. Active production. Surface mount 6-SMD gull wing.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Optoisolators"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Output Type":"Triac","Turn On Time":"60µs","Mounting Type":"Surface Mount","Package / Case":"6-SMD, Gull Wing","Approval Agency":"cUL, FIMKO, UL, VDE","lifecycle_stage":"eol_hot","Number of Channels":"1","Static dV/dt (Min)":"10kV/µs","Current - Hold (Ih)":"500µA","Voltage - Isolation":"5000Vrms","Voltage - Off State":"800 V","Operating Temperature":"-55°C ~ 100°C","Zero Crossing Circuit":"No","Supplier Device Package":"6-SMD","Voltage - Forward (Vf) (Typ)":"1.28V","Current - DC Forward (If) (Max)":"30 mA","Current - LED Trigger (Ift) (Max)":"1.3mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.92","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$5.92000","currency":"USD"},{"qty":10,"price":"$4.18200","currency":"USD"},{"qty":100,"price":"$3.42560","currency":"USD"},{"qty":500,"price":"$2.88784","currency":"USD"},{"qty":1000,"price":"$2.64885","currency":"USD"},{"qty":2000,"price":"$2.53932","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/4508d0a74baa9082fd3b0c6c58d4edcd.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Will FOD4218SDV drop into a panel that was specified around FOD4218SV without rewiring?","answer":"Yes, the FOD4218SDV and FOD4218SV share identical electrical ratings: 10 kV/µs dV/dt, 800 V off-state, 60 µs turn-on time, and the same 6-SMD package. The only difference is the shipping format — the SDV suffix indicates Tape & Reel or Cut Tape, while the SV suffix is tube. No rewiring or layout change is needed."},{"question":"What compliance documentation does onsemi provide for FOD4218SDV?","answer":"The FOD4218SDV is ROHS3 compliant and carries cUL, FIMKO, UL, and VDE safety approvals. onsemi provides the datasheet, RoHS certificate, and REACH declaration through its documentation portal."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/FOD4218SDV","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/FOD4218SDV when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T20:09:31.740Z","lastPublished":"2026-07-17T20:09:31.740Z","indexable":true}}