{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SM6T30CAY","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"SM6T30CAY","canonicalUrl":"https://icboms.com/stmicroelectronics/SM6T30CAY","factsUrl":"https://icboms.com/api/mcp/products/SM6T30CAY","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics SM6T30CAY, TRANSIL™ series, bidirectional TVS diode, 600W peak pulse power, 28.5V min breakdown, 53.5V clamping, DO-214AA (SMB) package, AEC-Q101 qualified.","salesMarkdown":"## 600W automotive TVS for 24V rail protection The STMicroelectronics SM6T30CAY is a bidirectional Zener-type TVS diode from the TRANSIL™ series, purpose-built for automotive transient protection. It delivers 600W peak pulse power (10/1000µs waveform) and clamps a 25.6V reverse standoff to 53.5V maximum at the rated peak pulse current of 75A (8/20µs waveform). The 28.5V minimum breakdown voltage ensures the part stays out of conduction during normal 24V bus operation. ## AEC-Q101 qualification and operating range Power line protection is not implemented (no internal series element), so this is a shunt-only clamp for signal or low-impedance power rails.","metaTitle":"STMicroelectronics SM6T30CAY TVS Diode, 600W, AEC-Q101","metaDescription":"Automotive-grade bidirectional TVS diode, 600W peak pulse power, 28.5V breakdown, 53.5V clamping. AEC-Q101 qualified.","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":"SM6T30","Operating Temperature":"-55°C~150°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"SMB (DO-214AA)","Voltage - Breakdown (Min)":"28.5V","Voltage - Clamping (Max) @ Ipp":"53.5V","Voltage - Reverse Standoff (Typ)":"25.6V","Current - Peak Pulse (10/1000µs)":"75A (8/20µs)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.7000","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/3a95ac6513bab2f04fd61565540cbe6f.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SM6T30CAY/alternatives.json"},"ai":{"faq":[{"question":"Does SM6T30CAY meet automotive grade AEC-Q101?","answer":"Yes, the SM6T30CAY is listed as Automotive, AEC-Q101 qualified, part of the SM6TY and TRANSIL™ series."},{"question":"What is the peak pulse power and breakdown voltage of SM6T30CAY?","answer":"The SM6T30CAY is rated for 600W peak pulse power (10/1000µs waveform). Its minimum breakdown voltage is 28.5V, with a maximum clamping voltage of 53.5V at the rated peak pulse current of 75A (8/20µs waveform). The reverse standoff voltage is 25.6V typical."},{"question":"Is SM6T30CAY a direct replacement for SM6T30CA?","answer":"The SM6T30CAY is the automotive-grade (AEC-Q101 qualified) version of the SM6T30CA. Both share the same DO-214AA (SMB) package, 600W peak pulse power rating, and breakdown/clamping voltage specifications. The 'Y' suffix indicates the automotive qualification. For non-automotive applications, the SM6T30CA may be a cost-effective alternative; for automotive designs, the SM6T30CAY is the correct choice."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/SM6T30CAY","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/SM6T30CAY 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}}