{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SM15T33A","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"SM15T33A","canonicalUrl":"https://icboms.com/stmicroelectronics/SM15T33A","factsUrl":"https://icboms.com/api/mcp/products/SM15T33A","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics SM15T33A, TRANSIL™ series, Zener TVS diode, unidirectional, 1500W peak pulse power, 28.2V reverse standoff, 31.4V breakdown, 59V clamping, 169A peak pulse current, DO-214AB SMC package, -55°C to 150°C.","salesMarkdown":"Peak pulse power is 1500 W, peak pulse current 169 A under 8/20 µs. Minimum breakdown voltage is 31.4 V, maximum clamping voltage 59 V. ## Package and temperature — rework and environment Housed in a DO-214AB (SMC) surface-mount package, the SM15T33A is a standard footprint. This is a unidirectional device for a single DC rail. For BOM planning, that means no forced redesign or end-of-life scramble on this line.","metaTitle":"STMicroelectronics SM15T33A TVS Diode, 1500W, 28.2V Standoff","metaDescription":"STMicroelectronics SM15T33A TRANSIL TVS diode, 1500W peak pulse power, 28.2V reverse standoff, 31.4V breakdown, 59V clamping, unidirectional, DO-214AB SMC","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"STMicroelectronics","Type":"Zener","Series":"SM15T, TRANSIL™","Package":"Tape & Reel (TR); Cut Tape (CT)","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"DO-214AB, SMC","Product Status":"Active","lifecycle_stage":"eol_hot","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"SM15T33","Operating Temperature":"-55°C~150°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"SMC","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"31.4V","Voltage - Clamping (Max) @ Ipp":"59V","Voltage - Reverse Standoff (Typ)":"28.2V","Current - Peak Pulse (10/1000µs)":"169A (8/20µs)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.9000","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/539ce92ad6505c8a9d704773ec1ef151.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SM15T33A/alternatives.json"},"ai":{"faq":[{"question":"Is SM15T33A bidirectional or unidirectional?","answer":"The SM15T33A is a unidirectional Zener TVS diode with one channel."},{"question":"What is the difference between SM15T33A and SMCJ33A?","answer":"Both are 1500 W TVS diodes in a DO-214AB package with similar standoff voltages around 28 V to 33 V, but the SM15T33A is from ST's TRANSIL series while the SMCJ33A is a generic JEDEC-registered part from multiple manufacturers. The key difference is in the clamping characteristics and breakdown tolerance — verify the specific Ipp and Vclamp curves from each datasheet for your surge waveform."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/SM15T33A","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/SM15T33A 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}}