{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SM15T47AY","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"SM15T47AY","canonicalUrl":"https://icboms.com/stmicroelectronics/SM15T47AY","factsUrl":"https://icboms.com/api/mcp/products/SM15T47AY","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics SM15T47AY, Automotive AEC-Q101 TRANSIL™ TVS, 1500W peak pulse power, 40.2V reverse standoff, 84V clamp, 119A peak pulse current, DO-214AB SMC package.","salesMarkdown":"It is a unidirectional Zener-type transient suppressor in a DO-214AB (SMC) surface-mount package. The 40.2 V reverse standoff voltage places it on a 36 V or 42 V nominal rail, with a minimum breakdown of 44.7 V and a maximum clamping voltage of 84 V at the 119 A peak pulse current (8/20 µs waveform). That 1500 W peak pulse rating is the headline number for sizing the clamp against load-dump and inductive-load transients in an automotive ECU. ## Package and footprint — DO-214AB SMC It is a single-channel unidirectional device, so the cathode band or polarity marking must be observed during placement. The SMC body is larger than the smaller SMA/SMB packages, which helps with thermal dissipation during the pulse event.","metaTitle":"STMicroelectronics SM15T47AY TVS Diode, 1500W, AEC-Q101","metaDescription":"STMicroelectronics SM15T47AY automotive TVS diode, 1500W peak pulse power, 40.2V standoff, 84V clamp, AEC-Q101 qualified.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"STMicroelectronics","Type":"Zener","Series":"Automotive, AEC-Q101, SM15TY, TRANSIL™","Package":"Tape & Reel (TR); Cut Tape (CT)","Applications":"Automotive","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":"SM15T47","Operating Temperature":"-40°C~150°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"SMC","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"44.7V","Voltage - Clamping (Max) @ Ipp":"84V","Voltage - Reverse Standoff (Typ)":"40.2V","Current - Peak Pulse (10/1000µs)":"119A (8/20µs)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.0600","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/d3caa9efa0f4fede168088411f4832fd.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SM15T47AY/alternatives.json"},"ai":{"faq":[{"question":"Is SM15T47AY AEC-Q101 qualified?","answer":"Yes, the SM15T47AY is AEC-Q101 qualified as part of the Automotive SM15TY series. This qualification covers the stress tests required for automotive-grade discrete semiconductors."},{"question":"What is the difference between SM15T47AY and SM15T47A?","answer":"The SM15T47AY is the AEC-Q101 qualified automotive-grade variant of the base SM15T47A. The electrical characteristics — 40.2 V standoff, 44.7 V breakdown, 84 V clamp, 1500 W peak pulse — are identical. The 'Y' suffix indicates the automotive qualification and the associated production and traceability controls."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/SM15T47AY","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/SM15T47AY 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}}