{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MOC3021SR2VM","brand":"onsemi","brandSlug":"onsemi","productSlug":"MOC3021SR2VM","canonicalUrl":"https://icboms.com/onsemi/MOC3021SR2VM","factsUrl":"https://icboms.com/api/mcp/products/MOC3021SR2VM","rawCanonicalId":null},"summary":{"shortDescription":"onsemi MOC3021SR2VM, 1-channel optoisolator with triac output, 4170Vrms isolation, 400 V off-state, no zero-crossing, in a 6-SMD gull-wing package, Tape & Reel / Cut Tape.","salesMarkdown":"## Triac output optoisolator for AC load switching The MOC3021SR2VM from onsemi is a single-channel optoisolator with a triac output, rated for 4170Vrms isolation and 400 V off-state voltage. ## No zero-crossing means random-phase firing The MOC3021SR2VM has no zero-crossing detection circuit. The triac fires as soon as the LED current exceeds the 15 mA max trigger threshold. ## Active production, ROHS3, industrial temperature ## Certification and approvals for mains-isolated designs The part carries IEC/EN/DIN and UL approvals, certifying the 4170Vrms isolation rating.","metaTitle":"MOC3021SR2VM onsemi Optoisolator, Triac Output, 4170Vrms","metaDescription":"onsemi MOC3021SR2VM optoisolator with triac output, 4170Vrms isolation, 400V off-state voltage, -40°C to 85°C. Active production, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Optoisolators"],"specifications":{"Mfr":"onsemi","Series":"-","Package":"Tape & Reel (TR) Cut Tape (CT)","Output Type":"Triac","Turn On Time":"-","Mounting Type":"Surface Mount","Package / Case":"6-SMD, Gull Wing","Product Status":"Active","Approval Agency":"IEC/EN/DIN, UL","lifecycle_stage":"eol_hot","Number of Channels":"1","Static dV/dt (Min)":"-","Base Product Number":"MOC302","Current - Hold (Ih)":"100µA (Typ)","Voltage - Isolation":"4170Vrms","Voltage - Off State":"400 V","Operating Temperature":"-40°C ~ 85°C","Zero Crossing Circuit":"No","Supplier Device Package":"6-SMD","Voltage - Forward (Vf) (Typ)":"1.15V","Current - DC Forward (If) (Max)":"60 mA","Current - LED Trigger (Ift) (Max)":"15mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.0900","priceTiers":[{"qty":1,"price":"$1.09000","currency":"USD"},{"qty":10,"price":"$0.71100","currency":"USD"},{"qty":100,"price":"$0.46610","currency":"USD"},{"qty":1000,"price":"$0.36799","currency":"USD"},{"qty":2000,"price":"$0.34346","currency":"USD"},{"qty":5000,"price":"$0.33119","currency":"USD"},{"qty":10000,"price":"$0.32629","currency":"USD"},{"qty":25000,"price":"$0.31893","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/12f74b3254c1e0370a4fb6eb3d6dbd88.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MOC3021SR2VM/alternatives.json"},"ai":{"faq":[{"question":"Can MOC3021SR2VM be used for 240V AC switching?","answer":"Yes. The 400 V off-state voltage exceeds the 340 V peak of a 240V AC sine wave, so the triac output blocks the line when off. The no-zero-crossing output means the triac turns on immediately when triggered, which is fine for resistive loads; for inductive loads like motors or transformers, add a snubber (e.g., 47 Ω + 0.01 µF) across the triac to prevent false turn-on from dV/dt."},{"question":"Is MOC3021SR2VM RoHS compliant?","answer":"Yes, the MOC3021SR2VM is ROHS3 compliant, meaning it meets the EU RoHS directive with no exemptions for lead, mercury, cadmium, or other restricted substances."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/MOC3021SR2VM","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/MOC3021SR2VM 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}}