{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SM6T42CAY","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"SM6T42CAY","canonicalUrl":"https://icboms.com/stmicroelectronics/SM6T42CAY","factsUrl":"https://icboms.com/api/mcp/products/SM6T42CAY","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics SM6T42CAY, Automotive AEC-Q101, TRANSIL™, Bidirectional TVS Diode, 600W Peak Pulse Power, 36V Reverse Standoff, 40V Breakdown, 76V Clamping, DO-214AA (SMB), Surface Mount.","salesMarkdown":"## What this TVS protects and where it goes The 600 W peak pulse power rating (10/1000 µs waveform) handles load-dump and inductive-load spikes common in automotive 24 V and 12 V battery-rail environments, as well as industrial sensor and actuator lines where symmetrical clamping is needed. ## AEC-Q101 and the operating range The 600 W peak pulse rating is derated linearly above 25°C per the datasheet curve — at 150°C junction the effective power handling drops, but the device still provides meaningful protection for continuous high-temperature operation. No power-line protection is built in; this is a transient suppressor, not a continuous overvoltage clamp.","metaTitle":"SM6T42CAY TVS Diode, 600W, 36V Standoff, AEC-Q101, DO-214AA","metaDescription":"STMicroelectronics SM6T42CAY bidirectional TVS diode, 600W peak pulse power, 36V reverse 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","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":"SM6T42","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)":"40V","Voltage - Clamping (Max) @ Ipp":"76V","Voltage - Reverse Standoff (Typ)":"36V","Current - Peak Pulse (10/1000µs)":"52A (8/20µs)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6800","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/3a95ac6513bab2f04fd61565540cbe6f.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SM6T42CAY/alternatives.json"},"ai":{"faq":[{"question":"Is SM6T42CAY a bidirectional TVS diode?","answer":"Yes, the SM6T42CAY is a single bidirectional channel Zener TVS diode. It clamps transients of either polarity symmetrically, so you do not need to worry about orientation when placing it between the protected line and ground."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/SM6T42CAY","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/SM6T42CAY 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}}