{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE33AHE3/51","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE33AHE3-51","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE33AHE3-51","factsUrl":"https://icboms.com/api/mcp/products/1.5KE33AHE3%2F51","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division, Automotive AEC-Q101 TransZorb® series, Zener TVS diode, 1.5KE33AHE3/51, 1500W peak pulse power, 28.2V reverse standoff, 45.7V clamping, DO-201AA axial, through hole, bulk.","salesMarkdown":"## 1.5KE33AHE3/51 — obsolete AEC-Q101 TVS diode, 1500 W peak pulse Its 28.2 V reverse standoff voltage and 45.7 V clamping at 32.8 A peak pulse current define the protection threshold for 24 V nominal rails in engine-bay or chassis-domain electronics. The DO-201AA (DO-27) axial leaded package requires through-hole mounting — a board spin if the existing layout uses surface-mount TVS diodes. ## Obsolete — sourcing through independent channels Vishay lists the 1.5KE33AHE3/51 as obsolete. No official successor order code is recorded in the lifecycle data. The AEC-Q101 qualification and full lot traceability are maintained on available stock. ## Clamping voltage and standoff — fit for 24 V automotive rails With a reverse standoff of 28.2 V, the diode does not conduct at the nominal 24 V bus voltage. The breakdown minimum of 31.4 V provides margin above the standoff before avalanche starts. The 1500 W peak pulse rating is a 10/1000 µs figure; real-world transients (e.g., ISO 7637-2 pulses) have different energy content, so the derating curve in the datasheet governs the actual capability for shorter or longer events.","metaTitle":"Vishay 1.5KE33AHE3/51 TVS Diode, 1500W, 28.2V Standoff","metaDescription":"Obsolete Vishay 1.5KE33AHE3/51 Zener TVS diode, 1500W peak pulse, 28.2V standoff, AEC-Q101. Sourced to order against RFQ through independent distribution.","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":"Bulk","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":"1.5KE33","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"31.4V","Voltage - Clamping (Max) @ Ipp":"45.7V","Voltage - Reverse Standoff (Typ)":"28.2V","Current - Peak Pulse (10/1000µs)":"32.8A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5346","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/55e3e40e24fd2c3f96443c3e231bf459.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the 1.5KE33AHE3/51 used for?","answer":"The AEC-Q101 qualification and -55°C to 175°C temperature range suit it for under-hood and chassis-domain electronic modules."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE33AHE3-51","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/1.5KE33AHE3-51 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}}