{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE43CHE3/54","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE43CHE3-54","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE43CHE3-54","factsUrl":"https://icboms.com/api/mcp/products/1.5KE43CHE3%2F54","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor, Automotive AEC-Q101 TransZorb, Zener TVS Diode, 1.5KE43CHE3/54, 1500W Peak Pulse, 34.8V Reverse Standoff, Bidirectional, DO-201AA Axial, Through Hole.","salesMarkdown":"## What the 1500W peak pulse rating means for the BOM The 1.5KE43CHE3/54: The 34.8 V reverse standoff voltage sits below the clamping ceiling, so the diode stays transparent during normal operation and only conducts when the line exceeds that threshold. The 38.7 V minimum breakdown voltage gives a guard band against the standoff level, ensuring the part does not self-trigger on nominal rail ripple. ## Package and board-fit for the DO-201AA axial lead Housed in a DO-201AA (DO-27) axial-lead package, this TVS mounts through-hole — the lead spacing and body diameter match the standard 0.375-inch lead form common in automotive junction boxes and power distribution modules. The 1.5KE supplier device package code confirms the same lead and body dimensions across the 1.5KE family, so the PCB footprint is shared with other voltage variants in the series. ## Sourcing an obsolete AEC-Q101 TVS diode For a BOM that already qualifies this TVS, the DO-201AA footprint and AEC-Q101 qualification are locked — a replacement means a board spin or a different package.","metaTitle":"Vishay 1.5KE43CHE3/54 TVS, 1500W, 34.8V Standoff, DO-201AA","metaDescription":"Vishay 1.5KE43CHE3/54 automotive TVS diode, 1500W peak pulse, 34.8V reverse standoff, AEC-Q101, DO-201AA axial. Obsolete — sourced to order against RFQ.","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":"1.5KE43","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Voltage - Breakdown (Min)":"38.7V","Voltage - Clamping (Max) @ Ipp":"61.9V","Voltage - Reverse Standoff (Typ)":"34.8V","Current - Peak Pulse (10/1000µs)":"24.2A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cbd949ebcf4c95d5b4ea8fdecf87536f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to the 1.5KE43CHE3/54?","answer":"Other 1.5KE family parts share the same footprint but at different voltage ratings — a parametric search by standoff voltage is needed to find a functional match."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE43CHE3-54","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/1.5KE43CHE3-54 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}}