{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE30HE3/54","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE30HE3-54","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE30HE3-54","factsUrl":"https://icboms.com/api/mcp/products/1.5KE30HE3%2F54","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division, Automotive AEC-Q101 TransZorb® TVS, Type Zener, 1.5KE30HE3/54, 1500W peak pulse, 24.3V standoff, DO-201AA axial, Tape & Reel.","salesMarkdown":"## Obsolete automotive TVS — sourcing the 1.5KE30HE3/54 The 1.5KE30HE3/54 is listed as obsolete by Vishay, meaning the manufacturer no longer produces it. A board-level replacement would require a functionally equivalent automotive-grade TVS in the same DO-201AA footprint with matching 24.3V standoff and 1500W peak pulse rating. ## AEC-Q101 qualification and the 1500W pulse envelope This is an automotive-grade TransZorb TVS, qualified to AEC-Q101 — the stress and reliability screening for under-hood electronics. This places it on a 24V automotive bus where the nominal rail sits below the standoff and the clamp triggers before the downstream ECU input sees damaging overvoltage. ## DO-201AA axial footprint and temperature range The DO-201AA (DO-27) axial-lead package is a through-hole form factor — the body diameter and lead spacing match the standard 1.5KE series footprint. The operating junction temperature range spans -55°C to 175°C, covering the full automotive temperature envelope including engine-bay soak-back. The base product number is 1.5KE30, and the supplier device package code is 1.5KE.","metaTitle":"Vishay 1.5KE30HE3/54 TVS, 1500W, 24.3V Standoff, DO-201AA","metaDescription":"Obsolete Vishay 1.5KE30HE3/54 automotive AEC-Q101 TVS diode, 1500W peak pulse, 24.3V standoff, DO-201AA axial. 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":"1.5KE30","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"27V","Voltage - Clamping (Max) @ Ipp":"43.5V","Voltage - Reverse Standoff (Typ)":"24.3V","Current - Peak Pulse (10/1000µs)":"34.5A"}},"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 1.5KE30HE3/54 used for?","answer":"The AEC-Q101 qualification makes it suitable for under-hood ECU protection where the operating temperature reaches 175°C."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE30HE3-54","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/1.5KE30HE3-54 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}}