{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SM15T82CAY","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"SM15T82CAY","canonicalUrl":"https://icboms.com/stmicroelectronics/SM15T82CAY","factsUrl":"https://icboms.com/api/mcp/products/SM15T82CAY","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics SM15T82CAY, Automotive AEC-Q101 Zener TVS Diode, 1500W Peak Pulse Power, 70V Reverse Standoff, Bidirectional, DO-214AB SMC Package.","salesMarkdown":"## What this TVS protects and where it lives ## 1500 W peak pulse — sizing the protection margin For a 70 V rail, the clamping voltage of 146 V means the device will hold the line during a 69 A peak pulse current event (8/20 µs waveform). That margin matters when protecting sensitive ECUs or sensor modules from load-dump spikes that can exceed 100 V. The base product number SM15T82 covers the unidirectional and bidirectional variants in the same SMC footprint, so a board designed for the SM15T82CAY can also accept the SM15T82A (unidirectional) if the circuit later requires polarity-specific clamping. ## DO-214AB SMC — footprint and assembly No power line protection is built in — this is a transient suppressor, not a regulator — so the design must still include appropriate input filtering and overcurrent protection upstream.","metaTitle":"STMicroelectronics SM15T82CAY TVS Diode, 1500W, AEC-Q101","metaDescription":"Automotive AEC-Q101 Zener TVS diode, 70V standoff, 1500W peak pulse, DO-214AB SMC. SM15T82CAY specifications and availability.","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":"SM15T82","Operating Temperature":"-40°C~150°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"SMC","Voltage - Breakdown (Min)":"77.8V","Voltage - Clamping (Max) @ Ipp":"146V","Voltage - Reverse Standoff (Typ)":"70V","Current - Peak Pulse (10/1000µs)":"69A (8/20µs)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.0600","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/d3caa9efa0f4fede168088411f4832fd.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to SM15T82CAY in this component family?","answer":"Within the SM15TY TRANSIL™ series, the unidirectional SM15T82A shares the same DO-214AB footprint and 70 V standoff voltage, differing only in polarity. For a bidirectional part with a different standoff, the SM15T33CAY (33 V) or SM15T100CAY (100 V) are in the same package and qualification grade."},{"question":"What compliance documentation does this brand provide for SM15T82CAY?","answer":"As an AEC-Q101 qualified part from STMicroelectronics, the SM15T82CAY is supported by a full datasheet, RoHS and REACH compliance declarations, and AEC-Q101 test reports. These documents are typically available from the manufacturer or through the distributor upon request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/SM15T82CAY","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/SM15T82CAY 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}}