{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC27AHE3/9AT","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5SMC27AHE3-9AT","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC27AHE3-9AT","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC27AHE3%2F9AT","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor, Automotive AEC-Q101 1.5SMC TransZorb series, Zener TVS diode, 1.5SMC27AHE3/9AT, 1500W peak pulse power, 23.1V standoff, DO-214AB SMC package, Tape & Reel.","salesMarkdown":"## DO-214AB SMC package — reflow and board-fit The 1.5SMC27AHE3/9AT comes in the DO-214AB (SMC) surface-mount package, also known as the SMCJ footprint. It is supplied on Tape & Reel, so it feeds straight into a standard pick-and-place line without a tray changeover. Check the MSL rating before the bake decision; a part this large in a molded package can trap moisture if stored beyond the floor-life label. The reverse standoff voltage is 23.1 V — the rail it protects should never exceed that in normal operation. The 37.5 V clamp at 40 A means a 24 V automotive bus gets held below 38 V during a load-dump transient. That is within the abs-max of most downstream 40 V-rated DC-DC converters and linear regulators, so the TVS does the clamping without the converter having to survive the full surge. ## AEC-Q101 automotive grade — the qualification story The 1.5SMC27AHE3/9AT carries AEC-Q101 qualification, meaning it has passed the automotive-grade stress tests: high-temperature reverse bias, temperature cycling, and ESD robustness. The series is also branded TransZorb, Vishay's own TVS process that delivers the tight clamping ratio typical of the 1.5SMC family. For a new automotive ECU design or a BOM fill on an existing line, this part is a standard-shelf item that does not trigger a last-time-buy planning cycle.","metaTitle":"Vishay 1.5SMC27AHE3/9AT TVS Diode, 1.5kW, DO-214AB","metaDescription":"Vishay 1.5SMC27AHE3/9AT Zener TVS diode, 1500W peak pulse power, 23.1V standoff, AEC-Q101 automotive grade. Active production, sourced per RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Vishay General Semiconductor - Diodes Division","Type":"Zener","Series":"Automotive, AEC-Q101, 1.5SMC, TransZorb®","Package":"Tape & Reel (TR)","Applications":"Automotive","Mounting Type":"Surface Mount","Package / Case":"DO-214AB, SMC","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5SMC27","Operating Temperature":"-65°C~150°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"DO-214AB (SMCJ)","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"25.7V","Voltage - Clamping (Max) @ Ipp":"37.5V","Voltage - Reverse Standoff (Typ)":"23.1V","Current - Peak Pulse (10/1000µs)":"40A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/de7dd597f6fdc3f56660f78f3e5a960d.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMC27AHE3%2F9AT/alternatives.json"},"ai":{"faq":[{"question":"What compliance documentation is available for this TVS diode?","answer":"As an AEC-Q101 qualified device from Vishay, the 1.5SMC27AHE3/9AT is supplied with RoHS and REACH compliance declarations. The standard Vishay datasheet includes the full electrical characteristics and qualification test data. No separate UL or IEC certification is listed for this part number."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC27AHE3-9AT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC27AHE3-9AT 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}}