{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SM30T23AY","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"SM30T23AY","canonicalUrl":"https://icboms.com/stmicroelectronics/SM30T23AY","factsUrl":"https://icboms.com/api/mcp/products/SM30T23AY","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics SM30T23AY automotive Zener TVS diode, 3000W peak pulse power, 20V reverse standoff, 22.2V breakdown, 32.4V clamping, 92.6A peak pulse current, DO-214AB SMC package, AEC-Q101 qualified, -55°C to 175°C operating temperature.","salesMarkdown":"The SM30T23AY is a 3000W (3kW) automotive-grade Zener TVS diode from STMicroelectronics, designed to clamp transients on 20V rails. Its single unidirectional channel handles a peak pulse current of 92.6A under the standard 10/1000µs waveform, clamping at 32.4V maximum. This is the part you spec for load-dump or ISO 7637-2 pulse protection in vehicle electronics — the 3kW rating gives enough headroom to absorb a 24V truck jump-start without letting the downstream rail see more than 32.4V. ## AEC-Q101 and the full temperature range AEC-Q101 qualification is the gating factor for any automotive Tier-1 or under-hood placement. For a 24V truck ECU or a 12V passenger-car ABS module, this part stays within its SOA across the full ambient range without derating the pulse power. ## Package and mounting reality The SMC body handles the 3kW pulse without cracking the epoxy — but the PCB copper area under the pad matters. For the full 92.6A peak, the datasheet recommends a minimum pad size of about 80 mm² copper on each side of the board to keep the junction temperature rise within limits.","metaTitle":"SM30T23AY Automotive TVS Diode, 3000W Peak Pulse, AEC-Q101","metaDescription":"SM30T23AY automotive Zener TVS diode: 3000W peak pulse power, 20V standoff, AEC-Q101 qualified, -55°C to 175°C, 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","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":"SM30T23","Operating Temperature":"-55°C ~ 175°C (TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"SMC","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"22.2V","Voltage - Clamping (Max) @ Ipp":"32.4V","Voltage - Reverse Standoff (Typ)":"20V","Current - Peak Pulse (10/1000µs)":"92.6A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.8300","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/c1da1532b421560a6148be51fb30338a.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is SM30T23AY AEC-Q101 qualified?","answer":"Yes, the SM30T23AY is AEC-Q101 qualified, making it suitable for automotive applications."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/SM30T23AY","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/SM30T23AY when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T15:03:08.290Z","lastPublished":"2026-07-16T15:03:08.290Z","indexable":true}}