{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SM30T6.8CAY","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"SM30T6.8CAY","canonicalUrl":"https://icboms.com/stmicroelectronics/SM30T6.8CAY","factsUrl":"https://icboms.com/api/mcp/products/SM30T6.8CAY","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics SM30T6.8CAY, Automotive AEC-Q101, SM30TY, TRANSIL™ series, bidirectional Zener TVS, 3 kW peak pulse, 6.45 V breakdown, 9.2 V clamping, 327 A, SMC surface mount, -55 to 175°C.","salesMarkdown":"## 3 kW automotive-grade bidirectional Zener TVS The STMicroelectronics SM30T6.8CAY is a bidirectional Zener TVS diode from the SM30TY TRANSIL™ series, qualified to AEC-Q101 for automotive applications. It delivers 3 kW peak pulse power (10/1000 µs) with a minimum breakdown voltage of 6.45 V and a maximum clamping voltage of 9.2 V at 327 A peak pulse current. ## AEC-Q101 and full temperature range AEC-Q101 qualification means this part is characterized and qualified for automotive stress grades — under-hood, chassis, and cabin domains where temperature swings and transient surges are routine. The -55°C to 175°C junction range covers cold-crank and under-hood soak conditions without derating concerns. ## Clamping and surge ratings The 9.2 V maximum clamping voltage at 327 A (10/1000 µs waveform) defines the protection floor for a 5 V reverse standoff rail. With a 6.45 V minimum breakdown, the device triggers before the rail sees damaging overvoltage. The 3 kW peak pulse rating gives margin for ISO 7637-2 pulse 5a/5b load-dump events common in automotive 12 V systems.","metaTitle":"STMicroelectronics SM30T6.8CAY Automotive TVS, 3 kW","metaDescription":"AEC-Q101 qualified bidirectional Zener TVS. 3 kW peak pulse power, 6.45 V min breakdown, 9.2 V clamping at 327 A. SMC surface mount, -55 to 175°C.","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, SM30TY, TRANSIL™","Package":"Tape & Reel (TR); Cut Tape (CT)","Applications":"Automotive","Mounting Type":"Surface Mount","Package / Case":"DO-214AB, SMC","Product Status":"Active","lifecycle_stage":"eol_hot","Power - Peak Pulse":"3000W (3kW)","Base Product Number":"SM30T6.8","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"SMC","Voltage - Breakdown (Min)":"6.45V","Voltage - Clamping (Max) @ Ipp":"9.2V","Voltage - Reverse Standoff (Typ)":"5V","Current - Peak Pulse (10/1000µs)":"327A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.5000","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/c1da1532b421560a6148be51fb30338a.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is SM30T6.8CAY AEC-Q101 qualified for automotive?","answer":"Yes, it is part of the Automotive, AEC-Q101 qualified SM30TY series, suitable for automotive transient protection."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/SM30T6.8CAY","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/SM30T6.8CAY when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T15:07:54.192Z","lastPublished":"2026-07-16T15:07:54.192Z","indexable":true}}