{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SM6T22CAY","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"SM6T22CAY","canonicalUrl":"https://icboms.com/stmicroelectronics/SM6T22CAY","factsUrl":"https://icboms.com/api/mcp/products/SM6T22CAY","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics SM6T22CAY, Automotive AEC-Q101 TRANSIL™ TVS diode, bidirectional, 600W peak pulse power, 18.8V reverse standoff, 30.6V clamp, DO-214AA SMB package, surface mount.","salesMarkdown":"## What this TVS diode is and where it goes ## 600W peak pulse power — what it buys you For a 24V truck system or a 12V passenger-car rail, this translates to clamping a 102A peak pulse current (8/20 µs waveform) down to 30.6V maximum. That clamp voltage sits well below the typical 40V to 60V absolute maximum of most automotive-grade ICs, giving the protection margin needed to survive load-dump or inductive kickback events. The 18.8V reverse standoff voltage means the diode does not conduct during normal 12V or 24V operation, so it adds no leakage path until a transient exceeds that threshold. ## Bidirectional — one part, both polarities The SM6T22CAY is a single-channel bidirectional device, meaning it clamps equally on positive and negative transients. This simplifies board layout for AC-coupled signals or lines that swing below ground — a single SMB package replaces two unidirectional diodes in anti-series. ## AEC-Q101 and active production status This qualification is a prerequisite for any part going into an ECU, ADAS module, or body controller that must meet the OEM's reliability specification.","metaTitle":"SM6T22CAY STMicroelectronics TVS Diode, 600W Bidirectional","metaDescription":"SM6T22CAY is a 600W bidirectional TVS diode from STMicroelectronics, AEC-Q101 qualified for automotive use. 18.8V standoff, 30.6V clamp. SMB (DO-214AA) package.","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":"SM6T22","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)":"20.9V","Voltage - Clamping (Max) @ Ipp":"30.6V","Voltage - Reverse Standoff (Typ)":"18.8V","Current - Peak Pulse (10/1000µs)":"102A (8/20µs)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.1700","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/3a95ac6513bab2f04fd61565540cbe6f.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SM6T22CAY/alternatives.json"},"ai":{"faq":[{"question":"Is SM6T22CAY AEC-Q101 qualified for automotive use?","answer":"Yes, the SM6T22CAY is AEC-Q101 qualified as part of the Automotive SM6TY TRANSIL™ series, making it suitable for automotive electronic systems that require this reliability screening."},{"question":"What is the peak pulse power rating of SM6T22CAY?","answer":"The SM6T22CAY is rated for 600W peak pulse power (10/1000 µs waveform), with a maximum clamping voltage of 30.6V at a peak pulse current of 102A (8/20 µs waveform)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/SM6T22CAY","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/SM6T22CAY 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}}