{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"FOD420SV","brand":"onsemi","brandSlug":"onsemi","productSlug":"FOD420SV","canonicalUrl":"https://icboms.com/onsemi/FOD420SV","factsUrl":"https://icboms.com/api/mcp/products/FOD420SV","rawCanonicalId":null},"summary":{"shortDescription":"onsemi FOD420SV, Optoisolator with Triac Output, 1 Channel, 5000Vrms Isolation, 600V Off-State, 10kV/µs dV/dt, Surface Mount 6-SMD Gull Wing, Tube","salesMarkdown":"## Triac Output Optoisolator for AC Load Switching The FOD420SV from onsemi is a single-channel optoisolator with a Triac output, designed to switch AC loads from a low-voltage logic input. It provides 5000Vrms isolation between input and output, making it suitable for mains-connected applications like solid-state relays, motor starters, and industrial PLC outputs. With a 600V off-state blocking voltage and a minimum static dV/dt of 10kV/µs, this part resists false triggering in noisy environments such as inverter drives and switching power supplies. ## Key Ratings for BOM Fit and Drive Margin The LED trigger current (Ift) is 2mA maximum, allowing direct drive from a 3.3V or 5V GPIO without an external transistor — a BOM simplification for digital output modules. Forward voltage is 1.28V typical at rated forward current. This part has no zero-crossing circuit, meaning the Triac fires at any phase of the AC waveform. That enables phase-angle control for dimming or soft-start but also generates higher conducted EMI — account for filtering in the layout. Operating temperature spans -55°C to 100°C, covering industrial and outdoor telecom enclosures. The hold current (Ih) is 500µA typical, which sets the minimum load current to keep the Triac latched once triggered. ## Package and Compliance Checklist Packaged in a 6-SMD gull-wing with supplier device package 6-SMD. The gull-wing leads provide visual solder-joint inspection and are compatible with standard reflow profiles. Approvals include cUL, FIMKO, UL, and VDE — covering North American and European safety certifications.","metaTitle":"FOD420SV onsemi Optoisolator Triac Output 5kV 6-SMD","metaDescription":"FOD420SV onsemi optoisolator with Triac output, 5000Vrms isolation, 600V off-state, 10kV/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":"Tube","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":"600 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)":"2mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.04","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$4.04000","currency":"USD"},{"qty":10,"price":"$2.86000","currency":"USD"},{"qty":100,"price":"$2.34230","currency":"USD"},{"qty":500,"price":"$1.97458","currency":"USD"},{"qty":1000,"price":"$1.81117","currency":"USD"},{"qty":2000,"price":"$1.73628","currency":"USD"},{"qty":5000,"price":"$1.70223","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/4508d0a74baa9082fd3b0c6c58d4edcd.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the difference between FOD420SV and FOD420?","answer":"The FOD420SV is the surface-mount variant in a 6-SMD gull-wing package, while the base FOD420 is typically a through-hole DIP package. Electrical specs — 5000Vrms isolation, 600V off-state, 10kV/µs dV/dt — are identical. The SV suffix designates the SMD package for automated assembly."},{"question":"Does FOD420SV have zero crossing?","answer":"No. The FOD420SV does not include a zero-crossing circuit. The Triac output turns on at any point in the AC cycle, which enables phase-control applications but requires EMI filtering."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/FOD420SV","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/FOD420SV when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T20:09:32.856Z","lastPublished":"2026-07-17T20:09:32.856Z","indexable":true}}