{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC51AHE3_A/I","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5SMC51AHE3_A-I","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC51AHE3_A-I","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC51AHE3_A%2FI","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division 1.5SMC, TransZorb® series, Automotive Zener TVS, 1500W peak pulse, DO-214AB (SMC), Tape & Reel.","salesMarkdown":"The 1.5SMC51AHE3_A/I is a 1500 W (1.5 kW) peak pulse power Zener TVS from Vishay's 1.5SMC series, in the TransZorb® family. The clamped voltage of 70.1 V is what the downstream silicon sees; a 40 V-rated DC-DC converter or a 60 V-rated MOSFET on that rail has margin. ## Automotive qualification and temperature range AEC-Q101 qualification means this part has passed the automotive-grade stress tests: high-temperature reverse bias, temperature cycling, and ESD robustness per the AEC-Q101 rev E standard. The 'HE3' suffix in the order code indicates the automotive-grade version with the full AEC-Q101 qualification and the Vishay Green (RoHS-compliant) plating. ## Package and board-fit for the DO-214AB (SMC) The supplier device package is listed as DO-214AB (SMCJ), which is the JEDEC-standardized version of the same body. The cathode band is marked on the body; the anode is the larger tab. For a 1500 W pulse, the PCB copper area under the tab sets the thermal impedance — a 1 oz copper pour of at least 300 mm² on the top layer keeps the junction temperature rise within the derating curve for repetitive pulses. The package is compatible with standard reflow profiles (MSL level 1, typical for this series). ## Active lifecycle — no end-of-life concern for new designs This part is suitable for both new design-ins and ongoing production. Vishay General Semiconductor - Diodes Division is the manufacturer.","metaTitle":"1.5SMC51AHE3_A/I Vishay TVS, 1500W, DO-214AB","metaDescription":"Vishay 1.5SMC51AHE3_A/I automotive Zener TVS, 1500W peak pulse, 43.6V standoff, AEC-Q101 qualified. Active production, quoted to order.","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","Grade":"Automotive","Series":"1.5SMC, TransZorb®","Packaging":"Tape & Reel (TR)","Part Status":"Active","Applications":"-","Mounting Type":"Surface Mount","Qualification":"AEC-Q101","Package / Case":"DO-214AB, SMC","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5SMC51","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)":"48.5V","Voltage - Clamping (Max) @ Ipp":"70.1V","Voltage - Reverse Standoff (Typ)":"43.6V","Current - Peak Pulse (10/1000µs)":"21.4A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.2995","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/de7dd597f6fdc3f56660f78f3e5a960d.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMC51AHE3_A%2FI/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to 1.5SMC51AHE3_A/I in this Circuit Protection family?","answer":"The 1.5SMC series from Vishay shares the same DO-214AB (SMC) footprint across all voltage variants. The closest pin-compatible alternative within the same family is the non-automotive version (1.5SMC51A) — same breakdown voltage and package, but without the AEC-Q101 qualification. For an automotive-grade alternative at a different standoff voltage, any 1.5SMCxxAHE3_A/I variant (e.g., 1.5SMC24AHE3_A/I or 1.5SMC100AHE3_A/I) is footprint-compatible and shares the same qualification."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC51AHE3_A-I","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/1.5SMC51AHE3_A-I 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}}