{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SM15T30CAY","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"SM15T30CAY","canonicalUrl":"https://icboms.com/stmicroelectronics/SM15T30CAY","factsUrl":"https://icboms.com/api/mcp/products/SM15T30CAY","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics SM15T30CAY, TRANSIL™ series, Bidirectional Zener TVS Diode, 1500W Peak Pulse, 25.6V Standoff, 53.5V Clamp, AEC-Q101, DO-214AB SMC, Surface Mount.","salesMarkdown":"## 1500 W peak pulse — automotive surge protection It clamps transients on a 25.6 V nominal rail, with a breakdown voltage of 28.5 V min and a clamping ceiling of 53.5 V at the rated current. The single bidirectional channel handles 187 A peak pulse current at the 8/20 µs waveform, sized for load-dump and inductive kickback on automotive 24 V buses. ## AEC-Q101 and -40 to 150 °C operating range The base product number is SM15T30, and the 'CAY' suffix denotes the bidirectional, AEC-Q101 variant.","metaTitle":"STMicroelectronics SM15T30CAY TVS Diode, 1500W","metaDescription":"STMicroelectronics SM15T30CAY bidirectional Zener TVS diode, 1500W peak pulse, 25.6V standoff, AEC-Q101 qualified, DO-214AB SMC package.","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":"SM15T30","Operating Temperature":"-40°C~150°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"SMC","Voltage - Breakdown (Min)":"28.5V","Voltage - Clamping (Max) @ Ipp":"53.5V","Voltage - Reverse Standoff (Typ)":"25.6V","Current - Peak Pulse (10/1000µs)":"187A (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/SM15T30CAY/alternatives.json"},"ai":{"faq":[{"question":"Is SM15T30CAY AEC-Q101 qualified?","answer":"Yes, the SM15T30CAY is listed in the Automotive, AEC-Q101 series. The part has passed the automotive-grade stress tests required for under-hood and chassis applications."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/SM15T30CAY","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/SM15T30CAY 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}}