{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SM30T10AY","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"SM30T10AY","canonicalUrl":"https://icboms.com/stmicroelectronics/SM30T10AY","factsUrl":"https://icboms.com/api/mcp/products/SM30T10AY","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics SM30T10AY, Automotive Zener TVS Diode, 3000W Peak Pulse Power, 8.5V Reverse Standoff, 14.4V Clamping, 208A Peak Pulse Current, DO-214AB (SMC), AEC-Q101 Qualified.","salesMarkdown":"For a 12V automotive system, the 8.5V reverse standoff voltage means the diode stays out of the way during normal operation, while the 9.5V minimum breakdown voltage ensures it triggers before the downstream circuitry sees damaging voltage. The maximum clamping voltage of 14.4V at Ipp tells you the worst-case voltage the protected load will see during a surge — important for selecting downstream capacitors and ICs with sufficient voltage margin. It is surface-mount, so reflow soldering is the typical assembly method. The package is rated for the full 3000W peak pulse, but the PCB copper area and thermal vias under the device directly affect how much average power it can dissipate — a solid ground-plane connection under the SMC pad is recommended for repetitive surge events. This is a standard catalog part from STMicroelectronics, available through independent distribution.","metaTitle":"SM30T10AY TVS Diode, 3000W, AEC-Q101, DO-214AB (SMC)","metaDescription":"STMicroelectronics SM30T10AY automotive TVS diode, 3000W peak pulse power, 8.5V standoff, AEC-Q101 qualified.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"STMicroelectronics","Type":"Zener","Grade":"Automotive","Series":"*","Package":"Tape & Reel (TR) Cut Tape (CT)","Applications":"-","Mounting Type":"Surface Mount","Qualification":"AEC-Q101","Package / Case":"DO-214AB, SMC","Product Status":"Active","lifecycle_stage":"eol_hot","Power - Peak Pulse":"3000W (3kW)","Base Product Number":"SM30T10","Operating Temperature":"-55°C ~ 175°C (TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"SMC","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"9.5V","Voltage - Clamping (Max) @ Ipp":"14.4V","Voltage - Reverse Standoff (Typ)":"8.5V","Current - Peak Pulse (10/1000µs)":"208A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.3500","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/c1da1532b421560a6148be51fb30338a.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is SM30T10AY automotive qualified?","answer":"Yes, the SM30T10AY is AEC-Q101 qualified, which means it has passed the automotive-grade reliability tests for use in under-hood and chassis electronics."},{"question":"What is the peak pulse power of SM30T10AY?","answer":"The SM30T10AY is rated for 3000W peak pulse power (10/1000µs waveform), with a corresponding peak pulse current of 208A."},{"question":"What package is SM30T10AY in?","answer":"The SM30T10AY comes in a DO-214AB (SMC) surface-mount package, with the supplier device package also designated as SMC."},{"question":"What is the replacement for SM30T10AY?","answer":"The SM30T10AY is still active, so a replacement is not currently needed. For a pin-compatible alternative, check other STMicroelectronics TVS diodes in the same DO-214AB package with similar voltage ratings."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/SM30T10AY","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/SM30T10AY 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}}