{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE12-E3/54","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE12-E3-54","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE12-E3-54","factsUrl":"https://icboms.com/api/mcp/products/1.5KE12-E3%2F54","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division, TransZorb® series, Zener TVS diode, 1.5KE12-/54, 1500W peak pulse power, 10.8V breakdown, DO-201AA axial package, Tape & Reel.","salesMarkdown":"## Obsolete — last-time-buy window has closed The 1.5KE12-E3/54: Vishay lists the 1.5KE12-/54 as Obsolete, meaning the manufacturer no longer produces this order code and the last-time-buy period has ended. A functional replacement would require a parametric match on the 1500W peak pulse rating, the 10.8V minimum breakdown voltage, and the DO-201AA axial footprint — but no pin-compatible direct drop-in is documented. ## TransZorb clamping performance at the board level The 9.72V reverse standoff means it stays off the rail at nominal 12V bus voltage; clamping begins at 10.8V minimum breakdown and limits transients to 17.3V maximum at 86.7A peak pulse current. Through-hole DO-201AA (DO-27) axial package: the leads insert into plated through-holes on the PCB.","metaTitle":"1.5KE12-E3/54 Vishay Zener TVS 1500W, DO-201AA","metaDescription":"Vishay 1.5KE12-E3/54 TransZorb® Zener TVS, 1500W peak pulse, 10.8V breakdown, 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":"TransZorb®","Package":"Tape & Reel (TR)","Applications":"General Purpose","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":"1.5KE12","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"10.8V","Voltage - Clamping (Max) @ Ipp":"17.3V","Voltage - Reverse Standoff (Typ)":"9.72V","Current - Peak Pulse (10/1000µs)":"86.7A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cbd949ebcf4c95d5b4ea8fdecf87536f.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5KE12-E3%2F54/alternatives.json"},"ai":{"faq":[{"question":"What package does the 1.5KE12-/54 use?","answer":"It comes in a DO-201AA (DO-27) axial-lead through-hole package. The body is cylindrical with axial wire leads for through-hole PCB mounting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE12-E3-54","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/1.5KE12-E3-54 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}}