{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE400A-803E3/54","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE400A-803E3-54","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE400A-803E3-54","factsUrl":"https://icboms.com/api/mcp/products/1.5KE400A-803E3%2F54","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor TransZorb® Automotive TVS, AEC-Q101, 1500W, 342V standoff, 548V clamp, DO-201AA axial, Tape & Reel.","salesMarkdown":"## Automotive-grade TVS for 342 V rails The 1.5KE400A-803E3/54: It clamps at 548 V maximum and has a 342 V reverse standoff voltage, making it a fit for protecting 300 VDC bus rails or 277 VAC rectified lines in automotive and industrial power stages. ## What the 1500 W rating means for your board At the 2.7 A peak pulse current, the diode clamps the transient to 548 V, absorbing the energy without exceeding the junction's 175°C limit. Breakdown voltage is guaranteed between 380 V (minimum) and the clamp voltage, so the diode starts conducting and shunting surge current before the protected circuit's insulation or semiconductor ratings are exceeded. ## Obsolete — sourcing through surplus channels Available through independent surplus and broker channels. No pin-compatible direct replacement from Vishay is documented — a board-level redesign to a different TVS series or package may be required for long-term supply.","metaTitle":"1.5KE400A-803E3/54 Vishay TVS, 1500W, 548V Clamp, DO-201AA","metaDescription":"Vishay 1.5KE400A-803E3/54 TransZorb TVS diode, 1500W peak pulse, 342V standoff, AEC-Q101. Obsolete — sourced to order against RFQ. DO-201AA axial.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Vishay General Semiconductor - Diodes Division","Type":"Zener","Series":"Automotive, AEC-Q101, TransZorb®","Package":"Tape & Reel (TR)","Applications":"Automotive","Mounting Type":"Through Hole","Package / Case":"DO-201AA, DO-27, Axial","Product Status":"Obsolete","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5KE400","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","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":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/55e3e40e24fd2c3f96443c3e231bf459.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the peak pulse power rating of this TVS diode?","answer":"1500 W (1.5 kW) for a 10/1000 µs waveform, clamping at 548 V maximum with a 2.7 A peak pulse current."},{"question":"What automotive qualification does the 1.5KE400A-803E3/54 carry?","answer":"AEC-Q101 qualified, part of the TransZorb® series designed for automotive stress environments including high-temperature reverse bias and temperature cycling."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE400A-803E3-54","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/1.5KE400A-803E3-54 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T14:34:45.345Z","lastPublished":"2026-07-20T14:34:45.345Z","indexable":true}}