{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SM4T6V7CAY","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"SM4T6V7CAY","canonicalUrl":"https://icboms.com/stmicroelectronics/SM4T6V7CAY","factsUrl":"https://icboms.com/api/mcp/products/SM4T6V7CAY","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics SM4T6V7CAY, Automotive AEC-Q101 TRANSIL™ TVS, Bidirectional Zener, 5V Standoff, 6.4V Breakdown, 400W Peak Pulse Power, DO-214AC SMA Package.","salesMarkdown":"## Automotive-grade transient suppression for 5V rails It protects a single 5V rail (reverse standoff voltage) with a minimum breakdown voltage of 6.4V and clamps transients up to 13.4V at peak pulse current. ## What the 400W rating means for your BOM For a 5V supply, this translates to a clamping voltage of 13.4V at 174A (8/20µs waveform), which is enough to shunt high-energy load-dump or inductive kickback transients before they reach the protected IC. The bidirectional channel means you can place it across a differential pair or a single supply line without worrying about polarity — it clamps both positive and negative surges. Housed in a DO-214AC (SMA) surface-mount package, the same footprint used across the SM4T family. The SMA body is reflow-friendly with standard lead-free profiles; no special bake-out beyond MSL 1 handling. The compact 2-lead package fits tight automotive ECU layouts where board space is at a premium. Active lifecycle status from STMicroelectronics — no NRND or EOL flags. For a BOM line requiring AEC-Q101 qualified protection on a 5V rail, the SM4T6V7CAY is a clean fit with no last-time-buy risk.","metaTitle":"STMicroelectronics SM4T6V7CAY TVS Diode, 400W, AEC-Q101","metaDescription":"SM4T6V7CAY bidirectional Zener TVS, 5V standoff, 6.4V breakdown, 400W peak pulse power. AEC-Q101 qualified. DO-214AC SMA 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, SM4TY, TRANSIL™","Package":"Tape & Reel (TR); Cut Tape (CT)","Applications":"Automotive","Mounting Type":"Surface Mount","Package / Case":"DO-214AC, SMA","Product Status":"Active","lifecycle_stage":"eol_hot","Power - Peak Pulse":"400W","Base Product Number":"SM4T6","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)":"6.4V","Voltage - Clamping (Max) @ Ipp":"13.4V","Voltage - Reverse Standoff (Typ)":"5V","Current - Peak Pulse (10/1000µs)":"174A (8/20µs)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.9300","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/45721247f0377ca5ff3983c35eddc2fa.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SM4T6V7CAY/alternatives.json"},"ai":{"faq":[{"question":"Is SM4T6V7CAY AEC-Q101 qualified?","answer":"Yes, the SM4T6V7CAY is part of the Automotive, AEC-Q101 qualified SM4TY series, making it suitable for automotive-grade applications."},{"question":"What is the peak pulse power of SM4T6V7CAY?","answer":"400W peak pulse power under a 10/1000µs waveform, with a peak pulse current of 174A under an 8/20µs waveform."},{"question":"What is the closest pin-compatible alternative to SM4T6V7CAY?","answer":"Within the SM4T family, other bidirectional parts with different standoff voltages (e.g., SM4T12CAY for 12V rails) share the same DO-214AC footprint and AEC-Q101 qualification. For a 5V rail, the SM4T6V7CAY is the direct choice; no exact drop-in with a different breakdown voltage exists in the same series."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/SM4T6V7CAY","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/SM4T6V7CAY 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}}