{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE250A-E3/51","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE250A-E3-51","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE250A-E3-51","factsUrl":"https://icboms.com/api/mcp/products/1.5KE250A-E3%2F51","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division TransZorb® TVS diode, Type Zener, 1.5KE250A-/51, 1500W peak pulse, 214V standoff, 344V clamp, DO-201AA axial, Bulk.","salesMarkdown":"## 1500W TransZorb TVS — Last Buy lifecycle The 1.5KE250A-E3/51: The Vishay 1.5KE250A-/51 is a 1500W unidirectional TransZorb TVS diode in the through-hole DO-201AA axial package. It clamps transients at 344V max when hit with a 4.4A 10/1000µs pulse, protecting downstream silicon from surges up to that energy level. This part carries a Last Buy lifecycle status — the manufacturer has issued an end-of-life notice, and remaining inventory is finite. For any BOM line depending on this order code, the window to secure lifetime buy quantities is closing. ## Clamping voltage and breakdown window The reverse standoff voltage is 214V typical — the diode draws negligible leakage below this rail. Breakdown occurs at a minimum of 237V, and the clamping voltage at peak pulse current is 344V max. That 103V window between standoff and clamp defines the protection margin for a 240VAC or 200VDC bus. ## Temperature range and package No power line protection feature is built in — this is a basic unidirectional TVS for signal or DC rail clamping, not for AC mains primary protection.","metaTitle":"1.5KE250A-E3/51 Vishay TransZorb TVS, 1500W, 344V Clamp","metaDescription":"Vishay 1.5KE250A-E3/51 TransZorb 1500W TVS diode, 214V standoff, 344V clamp at 4.4A. Last Buy status. Sourced to order against RFQ. Through-hole DO-201AA.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Last Buy","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Vishay General Semiconductor - Diodes Division","Type":"Zener","Series":"TransZorb®","Package":"Bulk","Applications":"General Purpose","Mounting Type":"Through Hole","Package / Case":"DO-201AA, DO-27, Axial","Product Status":"Last Time Buy","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5KE250","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"237V","Voltage - Clamping (Max) @ Ipp":"344V","Voltage - Reverse Standoff (Typ)":"214V","Current - Peak Pulse (10/1000µs)":"4.4A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.0992","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cbd949ebcf4c95d5b4ea8fdecf87536f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How can I order 1.5KE250A-/51 or check availability?","answer":"This part is in Last Buy status. Submit a request with your target quantity and we will return a firm offer."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE250A-E3-51","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/1.5KE250A-E3-51 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}}