{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE220AHE3/51","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE220AHE3-51","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE220AHE3-51","factsUrl":"https://icboms.com/api/mcp/products/1.5KE220AHE3%2F51","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division, Automotive AEC-Q101 TransZorb® series, TVS Zener unidirectional, 1.5KE220AHE3/51, 1500W peak pulse, 328V clamp, DO-201AA axial through hole.","salesMarkdown":"## Obsolete automotive TVS — what the 1500W rating means for the BOM line The 1.5KE220AHE3/51: Its 328V clamping voltage at 4.6A peak pulse current means a 185V nominal rail — typical for 180V DC bus or 120V AC rectified lines — is clamped before the transient exceeds the downstream semiconductor's breakdown. ## Automotive qualification and temperature envelope The 175°C maximum junction temperature (TJ) is the upper limit for the silicon die itself; the DO-201AA axial package's thermal impedance to the PCB copper area sets the practical derating above 25°C. At 1500W peak pulse, the device absorbs the transient energy within the pulse duration, but repetitive events require the average power to stay within the thermal budget. ## EOL reality — sourcing an obsolete automotive TVS Each lot is verified for date code and traceability against the original Vishay manufacturing marks — no pin-compatible successor from Vishay is documented, so a board-level replacement would require requalification of a functionally equivalent TVS in the same DO-201AA footprint.","metaTitle":"Vishay 1.5KE220AHE3/51 TVS, 1500W, 328V Clamp, DO-201AA","metaDescription":"Obsolete Vishay 1.5KE220AHE3/51 unidirectional TVS diode, 1500W peak pulse, 328V clamp, AEC-Q101 automotive grade.","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":"1.5KE220","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"209V","Voltage - Clamping (Max) @ Ipp":"328V","Voltage - Reverse Standoff (Typ)":"185V","Current - Peak Pulse (10/1000µs)":"4.6A"}},"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":"Where can I source the obsolete 1.5KE220AHE3/51?","answer":"Each lot is verified for authenticity and date-code traceability."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE220AHE3-51","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/1.5KE220AHE3-51 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}}