{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MOC3052SM","brand":"onsemi","brandSlug":"onsemi","productSlug":"MOC3052SM","canonicalUrl":"https://icboms.com/onsemi/MOC3052SM","factsUrl":"https://icboms.com/api/mcp/products/MOC3052SM","rawCanonicalId":null},"summary":{"shortDescription":"onsemi MOC3052SM optoisolator, Triac output, 1 channel, 4170Vrms isolation, 600 V off-state, 6-SMD Gull Wing, Tube.","salesMarkdown":"## Triac output with 1 kV/µs dV/dt — no zero-cross The onsemi MOC3052SM is a 1-channel optoisolator with a Triac output in a 6-SMD Gull Wing package. It provides 4170Vrms of isolation between the LED input and the Triac output, with a 600 V off-state voltage rating. The absence of a zero-crossing circuit means the output triggers immediately when the LED current exceeds the 10 mA maximum Ift threshold, making it suitable for phase-angle control applications where turn-on at any point in the AC cycle is required. ## 4170Vrms isolation and 600 V blocking The 4170Vrms isolation rating qualifies the MOC3052SM for reinforced insulation in mains-powered equipment — a solenoid valve driver or solid-state relay input stage on a 230 VAC line stays isolated from the low-voltage logic side. The 600 V off-state voltage blocks the peak of a 400 VAC line, so the Triac holds off until the LED fires it. Static dV/dt is a minimum of 1 kV/µs. This is the rate of rise of off-state voltage the Triac can withstand without false triggering — a commutating snubber may still be needed on inductive loads, but the 1 kV/µs floor covers most contactor and small motor switching without external RC networks. Hold current Ih is 220 µA typical. Once the Triac fires, it latches on until the load current drops below this level near the AC zero-cross. In a 10 mA minimum load circuit the Triac stays latched reliably; below that the output may drop out mid-cycle. RoHS3 compliant and UL recognized. The UR approval covers the safety isolation rating for North American equipment — a panel builder accepting a UL 508A shop-floor assembly can drop this opto in without a separate component-level investigation.","metaTitle":"onsemi MOC3052SM Optoisolator, Triac Output, 4170Vrms, 6-SMD","metaDescription":"onsemi MOC3052SM optoisolator with Triac output, 4170Vrms isolation, 600V off-state, 1kV/µs dV/dt, 6-SMD Gull Wing. 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":"Tube","Output Type":"Triac","Turn On Time":"-","Mounting Type":"Surface Mount","Package / Case":"6-SMD, Gull Wing","Product Status":"Active","Approval Agency":"UR","lifecycle_stage":"eol_hot","Number of Channels":"1","Static dV/dt (Min)":"1kV/µs","Base Product Number":"MOC305","Current - Hold (Ih)":"220µA (Typ)","Voltage - Isolation":"4170Vrms","Voltage - Off State":"600 V","Operating Temperature":"-40°C ~ 85°C","Zero Crossing Circuit":"No","Supplier Device Package":"6-SMD","Voltage - Forward (Vf) (Typ)":"1.18V","Current - DC Forward (If) (Max)":"60 mA","Current - LED Trigger (Ift) (Max)":"10mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.4700","priceTiers":[{"qty":1,"price":"$1.54000","currency":"USD"},{"qty":10,"price":"$0.97600","currency":"USD"},{"qty":100,"price":"$0.72220","currency":"USD"},{"qty":500,"price":"$0.66368","currency":"USD"},{"qty":1000,"price":"$0.54656","currency":"USD"},{"qty":2000,"price":"$0.51923","currency":"USD"},{"qty":5000,"price":"$0.50752","currency":"USD"},{"qty":10000,"price":"$0.49581","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/acedf076ec9cc11d748fc2dec88103ed.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MOC3052SM/alternatives.json"},"ai":{"faq":[{"question":"What is the MOC3052SM used for?","answer":"The MOC3052SM is an optoisolator with a Triac output used to switch AC loads from a low-voltage logic signal. Typical applications include solid-state relays, AC motor starters, solenoid valve drivers, and phase-angle control circuits where the Triac must fire at any point in the AC cycle rather than only at zero-cross."},{"question":"Does the MOC3052SM have a zero-crossing circuit?","answer":"No. The MOC3052SM has no zero-crossing circuit. The Triac output triggers immediately when the LED current exceeds the 10 mA maximum Ift threshold, making it suitable for phase-angle control and random-turn-on applications."},{"question":"What compliance documentation does onsemi provide for the MOC3052SM?","answer":"The MOC3052SM is ROHS3 compliant and UL recognized. onsemi provides the standard compliance documentation including the RoHS declaration of compliance and UL recognition certificate for the MOC305 series."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/MOC3052SM","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/MOC3052SM 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}}