{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MOC3083SM","brand":"onsemi","brandSlug":"onsemi","productSlug":"MOC3083SM","canonicalUrl":"https://icboms.com/onsemi/MOC3083SM","factsUrl":"https://icboms.com/api/mcp/products/MOC3083SM","rawCanonicalId":null},"summary":{"shortDescription":"onsemi MOC3083SM optoisolator, triac output, 1-channel, 6-SMD Gull Wing, 4170Vrms isolation, 800V off-state, zero-crossing circuit, UL approved, ROHS3 compliant.","salesMarkdown":"## Zero-crossing triac driver for clean AC switching The onsemi MOC3083SM is a 1-channel optoisolator with a triac output and a built-in zero-crossing circuit, meaning it only triggers the triac when the AC mains voltage is near zero. This reduces inrush current and electromagnetic interference when switching resistive or inductive loads like heaters, solenoids, or small motors. Rated for 800 V off-state voltage and 4170 Vrms isolation, it provides a solid safety barrier between low-voltage control logic and high-voltage AC lines up to 240 Vrms nominal. The 600 V/µs minimum static dV/dt rating means the triac will not falsely trigger from fast voltage transients on the AC line — important for noisy environments like motor drives or switching power supplies where commutation spikes are common. Hold current is 500 µA typical — once triggered, the triac stays on until the load current drops below this threshold, which happens naturally at the AC zero crossing. The zero-crossing circuit ensures the triac only fires near the zero point, not at the peak of the waveform. ## Package and board-fit for surface-mount assembly Housed in a 6-SMD Gull Wing package (6-SMD), the MOC3083SM is designed for reflow soldering on standard FR-4 PCBs. The Gull Wing leads are hand-solderable with a fine-tip iron if you are prototyping, though a hot-air station is cleaner for production runs. It ships in tubes (Tube), so for pick-and-place you will need to transfer to tape-and-reel or order a tape-compatible variant.","metaTitle":"onsemi MOC3083SM Optoisolator, Triac Output, 800V","metaDescription":"onsemi MOC3083SM optoisolator with triac output, 800V off-state, 4170Vrms isolation, zero-crossing circuit. Active production, UL approved, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Optoisolators"],"specifications":{"Mfr":"onsemi","Series":"-","Package":"Tube","Output Type":"Triac","Turn On Time":"-","Mounting Type":"Surface Mount","Package / Case":"6-SMD, Gull Wing","Product Status":"Active","Approval Agency":"UL","lifecycle_stage":"eol_hot","Number of Channels":"1","Static dV/dt (Min)":"600V/µs","Base Product Number":"MOC308","Current - Hold (Ih)":"500µA (Typ)","Voltage - Isolation":"4170Vrms","Voltage - Off State":"800 V","Operating Temperature":"-40°C~85°C","Zero Crossing Circuit":"Yes","Supplier Device Package":"6-SMD","Voltage - Forward (Vf) (Typ)":"1.3V","Current - DC Forward (If) (Max)":"60 mA","Current - LED Trigger (Ift) (Max)":"5mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.3100","priceTiers":[{"qty":1,"price":"$1.31000","currency":"USD"},{"qty":10,"price":"$0.83000","currency":"USD"},{"qty":100,"price":"$0.61450","currency":"USD"},{"qty":500,"price":"$0.56472","currency":"USD"},{"qty":1000,"price":"$0.46506","currency":"USD"},{"qty":2000,"price":"$0.44181","currency":"USD"},{"qty":5000,"price":"$0.43185","currency":"USD"},{"qty":10000,"price":"$0.42188","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/ebf666b3e829cce190cd06090870c626.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MOC3083SM/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between MOC3083SM and MOC3011SM?","answer":"The key difference is the zero-crossing circuit: MOC3083SM includes it, MOC3011SM does not. Both are 1-channel triac optoisolators in 6-SMD Gull Wing packages with UL approval and 4170 Vrms isolation. The MOC3083SM switches at the AC zero crossing for lower inrush and EMI; the MOC3011SM triggers immediately on LED current, which can cause higher surge currents on inductive loads."},{"question":"What compliance documentation does onsemi provide for MOC3083SM?","answer":"The MOC3083SM is ROHS3 compliant and UL approved. onsemi typically provides a declaration of RoHS compliance and UL recognition documentation on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/MOC3083SM","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/MOC3083SM 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}}