{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MOC3032SR2M","brand":"onsemi","brandSlug":"onsemi","productSlug":"MOC3032SR2M","canonicalUrl":"https://icboms.com/onsemi/MOC3032SR2M","factsUrl":"https://icboms.com/api/mcp/products/MOC3032SR2M","rawCanonicalId":null},"summary":{"shortDescription":"onsemi MOC3032SR2M optoisolator, Triac output, 1 channel, 4170Vrms isolation, zero-crossing circuit, 6-SMD Gull Wing package, Tape & Reel / Cut Tape.","salesMarkdown":"## Triac output with zero-crossing for clean AC switching The MOC3032SR2M from onsemi is a single-channel optoisolator with a Triac output and a built-in zero-crossing circuit. This combination is designed to switch AC loads — such as solenoids, relays, or small motors — while minimizing inrush current and conducted EMI at turn-on. The zero-crossing circuit ensures the Triac only fires when the AC line voltage is near zero, which is critical for driving loads that see a high surge if switched mid-cycle. Rated for off-state voltage up to 250 V, the output stage handles common 120 VAC or 240 VAC line applications without an external snubber in many cases, thanks to a minimum static dV/dt of 1 kV/µs. This dV/dt rating means the Triac resists false triggering from fast voltage transients on the AC line — a real concern when switching inductive loads or operating in noisy industrial environments. ## Isolation and drive requirements for the BOM With 4170 Vrms isolation between input and output, this optoisolator provides a reinforced safety barrier suitable for applications where the control side must be galvanically separated from the line-voltage load. The UL recognition (Approval Agency: UL) confirms the component meets the safety standard for recognized components, which simplifies regulatory acceptance in end equipment. On the input side, the LED requires a forward voltage of 1.25 V (typical) and a maximum trigger current of 10 mA to turn on the Triac. This low trigger current means a standard logic-level output or a simple transistor driver can fire the optoisolator without a separate driver stage. The hold current (Ih) is 400 µA typical — once triggered, the Triac latches on until the load current drops below this threshold, which happens naturally at the AC zero-crossing. This is standard Triac behavior and means the device self-commutates at the end of each half-cycle. ## Package, temperature range, and supply format Housed in a 6-SMD Gull Wing package (Supplier Device Package: 6-SMD), the MOC3032SR2M is designed for surface-mount assembly. The Gull Wing leads provide a visible solder joint for inspection, which is an advantage over J-lead or leadless packages in prototypes or low-volume builds. Lifecycle status is Active, meaning onsemi continues to manufacture this part — no end-of-life notice or last-time-buy window is in effect. ROHS3 compliance is confirmed for RoHS-directed markets.","metaTitle":"onsemi MOC3032SR2M Optoisolator Triac, 4170Vrms, Zero-Cross","metaDescription":"onsemi MOC3032SR2M optoisolator with Triac output, 4170Vrms isolation, zero-crossing circuit, 1kV/µs dV/dt. Active production, UL recognized. Request quote.","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","Mounting Type":"Surface Mount","Package / Case":"6-SMD, Gull Wing","Approval Agency":"UL","lifecycle_stage":"eol_hot","Number of Channels":"1","Static dV/dt (Min)":"1kV/µs","Current - Hold (Ih)":"400µA (Typ)","Voltage - Isolation":"4170Vrms","Voltage - Off State":"250 V","Operating Temperature":"-40°C ~ 85°C","Zero Crossing Circuit":"Yes","Supplier Device Package":"6-SMD","Voltage - Forward (Vf) (Typ)":"1.25V","Current - DC Forward (If) (Max)":"60 mA","Current - LED Trigger (Ift) (Max)":"10mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.08","stockQuantity":22,"priceTiers":[{"qty":1,"price":"$1.08000","currency":"USD"},{"qty":10,"price":"$0.68300","currency":"USD"},{"qty":100,"price":"$0.50560","currency":"USD"},{"qty":500,"price":"$0.46462","currency":"USD"},{"qty":1000,"price":"$0.38263","currency":"USD"},{"qty":2000,"price":"$0.36350","currency":"USD"},{"qty":5000,"price":"$0.35530","currency":"USD"},{"qty":10000,"price":"$0.34710","currency":"USD"},{"qty":25000,"price":"$0.34163","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What is the closest functional second-source for MOC3032SR2M?","answer":"The closest functional peer is the MOC3073SVM, which shares the same 1 kV/µs minimum static dV/dt, UL approval, single-channel Triac output, surface-mount package, and 4170 Vrms isolation. The key difference is that the MOC3073SVM lacks a zero-crossing circuit, so it fires at any point in the AC cycle — not just near zero voltage. If your application requires zero-cross switching to reduce inrush or EMI, the MOC3032SR2M is the correct choice; the MOC3073SVM is a drop-in alternative only if zero-crossing is not needed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/MOC3032SR2M","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/MOC3032SR2M when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}