{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SM6T12AY","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"SM6T12AY","canonicalUrl":"https://icboms.com/stmicroelectronics/SM6T12AY","factsUrl":"https://icboms.com/api/mcp/products/SM6T12AY","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics SM6T12AY, Automotive AEC-Q101 Zener TVS diode, 600W peak pulse power, 10.2V reverse standoff, 11.4V breakdown min, 21.7V clamping max, 184A peak pulse current (8/20µs), DO-214AA SMB package, -55 to 150°C junction temp.","salesMarkdown":"## 600 W peak pulse — 12 V automotive rail protection It carries AEC-Q101 qualification, so it is screened for the stress profiles of under-hood and chassis-domain electronics — thermal cycling, high-temperature reverse bias, and surge endurance. ## Clamping window and surge current Reverse standoff voltage is 10.2 V, so the diode stays out of conduction below that level — no leakage penalty on a nominal 12 V bus. Breakdown starts at a minimum of 11.4 V, and clamping is held to a maximum of 21.7 V at the rated peak pulse current of 184 A under the 8/20 µs waveform. That 184 A figure is the one to check against ISO 7637-2 pulse 5a/5b requirements for load-dump protection; the 8/20 µs shape is the standard for automotive transient generators. Operating junction temperature spans -55 to 150 °C, covering both cold-crank at -40 °C and under-hood heat soak above 125 °C. ## Package and mounting — DO-214AA SMB The SMB body is pick-and-place friendly and reflow-solderable. No through-hole staking or lead-forming — just a standard SMD placement step.","metaTitle":"STMicroelectronics SM6T12AY TVS Zener, 600W, AEC-Q101","metaDescription":"STMicroelectronics SM6T12AY automotive AEC-Q101 Zener TVS diode, 600W peak pulse, 10.2V standoff, DO-214AA SMB.","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, SM6TY, TRANSIL™","Package":"Tape & Reel (TR); Cut Tape (CT)","Applications":"Automotive","Mounting Type":"Surface Mount","Package / Case":"DO-214AA, SMB","Product Status":"Active","lifecycle_stage":"eol_hot","Power - Peak Pulse":"600W","Base Product Number":"SM6T12","Operating Temperature":"-55°C~150°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"SMB (DO-214AA)","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"11.4V","Voltage - Clamping (Max) @ Ipp":"21.7V","Voltage - Reverse Standoff (Typ)":"10.2V","Current - Peak Pulse (10/1000µs)":"184A (8/20µs)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.7100","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/3a95ac6513bab2f04fd61565540cbe6f.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SM6T12AY/alternatives.json"},"ai":{"faq":[{"question":"Is SM6T12AY AEC-Q101 qualified for automotive use?","answer":"Yes, the SM6T12AY is part of the Automotive, AEC-Q101 series. It is suitable for under-hood and chassis-domain applications where the environment sees -55 to 150 °C junction temperatures."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/SM6T12AY","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/SM6T12AY 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}}