{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SM4T26CAY","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"SM4T26CAY","canonicalUrl":"https://icboms.com/stmicroelectronics/SM4T26CAY","factsUrl":"https://icboms.com/api/mcp/products/SM4T26CAY","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics SM4T26CAY, Automotive Zener TVS Diode, Bidirectional, 22V Reverse Standoff, 24.4V Breakdown, 48.3V Clamp, 400W Peak Pulse, DO-214AC (SMA), AEC-Q101 Qualified.","salesMarkdown":"## Automotive-grade Zener TVS for 24V rail clamping It is AEC-Q101 qualified, making it suitable for automotive electronics, industrial controls, and any 24V nominal rail that needs protection against load-dump or surge events. The device clamps at 48.3V maximum with a peak pulse current capacity of 48A (8/20 µs). ## Voltage window and clamping performance Reverse standoff voltage is 22V, so the diode stays off below that level. Breakdown occurs at a minimum of 24.4V, and clamping is specified at 48.3V maximum under the peak pulse condition. This window suits protection of 24V power buses where the rail tolerance allows a 2.4V margin before the TVS starts conducting. Housed in a standard DO-214AC (SMA) package, surface-mount, with the same footprint as other SMA Zener diodes.","metaTitle":"STMicroelectronics SM4T26CAY Zener TVS, 400W, AEC-Q101, SMA","metaDescription":"Bidirectional Zener TVS diode, 22V standoff, 24.4V breakdown, 48.3V clamp at 48A. AEC-Q101 qualified for automotive. Active production.","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-214AC, SMA","Product Status":"Active","lifecycle_stage":"eol_hot","Power - Peak Pulse":"400W","Base Product Number":"SM4T26","Operating Temperature":"-55°C ~ 150°C (TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"SMA (DO-214AC)","Voltage - Breakdown (Min)":"24.4V","Voltage - Clamping (Max) @ Ipp":"48.3V","Voltage - Reverse Standoff (Typ)":"22V","Current - Peak Pulse (10/1000µs)":"48A (8/20µs)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.9300","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/45721247f0377ca5ff3983c35eddc2fa.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is SM4T26CAY suitable for automotive applications?","answer":"Yes. The SM4T26CAY is AEC-Q101 qualified, making it suitable for automotive electronics requiring transient voltage suppression."},{"question":"Is SM4T26CAY AEC-Q101 qualified?","answer":"Yes, it carries AEC-Q101 qualification."},{"question":"What package is SM4T26CAY?","answer":"It is supplied in a DO-214AC (SMA) surface-mount package."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/SM4T26CAY","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/SM4T26CAY 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}}