{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC400AHE3_ALL","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5SMC400AHE3_ALL","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC400AHE3_ALL","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC400AHE3_ALL","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor, 1.5SMC/TransZorb® series, automotive Zener TVS diode, 1500W peak pulse power, 342V reverse standoff, 548V clamping, AEC-Q101, DO-214AB SMC surface mount.","salesMarkdown":"## Automotive-grade transient protection — AEC-Q101 is the gate The 1.5SMC400AHE3_ALL: The 342V reverse standoff voltage sets the DC operating ceiling: the protected rail must never exceed 342V in steady state, or the diode begins conducting leakage current. Clamping at 548V maximum under peak pulse current limits the voltage seen by downstream components during a surge event. ## 380V breakdown, 548V clamp — the protection window Breakdown occurs at a minimum of 380V, so the diode stays off below that threshold. The 548V maximum clamping voltage at 2.7A peak pulse current defines the worst-case voltage the load sees during a transient — critical for selecting downstream capacitor voltage ratings and MOSFET BVdss margins. The DO-214AB (SMC) package footprint mates with standard surface-mount pads and supports reflow soldering without special handling.","metaTitle":"1.5SMC400AHE3_ALL Vishay TVS, AEC-Q101, 1500W, DO-214AB","metaDescription":"Vishay 1.5SMC400AHE3_ALL automotive-grade TVS diode, 1500W peak pulse, 342V 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":"1.5SMC400","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)":"380V","Voltage - Clamping (Max) @ Ipp":"548V","Voltage - Reverse Standoff (Typ)":"342V","Current - Peak Pulse (10/1000µs)":"2.7A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.2000","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/de7dd597f6fdc3f56660f78f3e5a960d.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMC400AHE3_ALL/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to 1.5SMC400AHE3_ALL in this family?","answer":"The base product number 1.5SMC400 covers the same voltage class. Pin-compatible siblings in the same DO-214AB package include the non-automotive 1.5SMC400A (without the HE3 suffix) and the bidirectional 1.5SMC400CA. The AEC-Q101 qualification on the HE3 variant is the deciding factor for automotive BOMs — the standard-grade parts lack the PPAP documentation an OEM auditor requires."},{"question":"Where can I buy the 1.5SMC400AHE3_ALL and get a price?","answer":"Available to order through independent distribution. No stock-holding claim is made on this page."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC400AHE3_ALL","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/1.5SMC400AHE3_ALL 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}}