{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE43-E3/54","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE43-E3-54","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE43-E3-54","factsUrl":"https://icboms.com/api/mcp/products/1.5KE43-E3%2F54","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division TransZorb® Zener TVS, 1.5KE43-/54, 1500W peak pulse power, 34.8V reverse standoff, 61.9V clamping, DO-201AA axial, through hole.","salesMarkdown":"## Obsolete — sourcing through independent channels The 1.5KE43-E3/54: The part is available through independent surplus and broker channels. For a 34.8 V nominal rail, the 61.9 V clamping voltage (at 24.2 A peak pulse current) means the protected circuitry sees no more than ~62 V during the transient. Breakdown starts at 38.7 V minimum, so the diode stays off below that threshold and clamps above it. ## Through-hole axial package — board integration Housed in a DO-201AA / DO-27 axial leaded package, through-hole mount. The axial body sits inline with the leads, making it suitable for point-to-point wiring or PCB insertion with standard 0.100-inch pitch hole spacing. The 1.5KE package code indicates the body diameter and lead length match the industry-standard TransZorb footprint.","metaTitle":"Vishay 1.5KE43-E3/54 TransZorb TVS, 1500W, 34.8V Standoff","metaDescription":"Obsolete Vishay 1.5KE43-E3/54 TransZorb Zener TVS diode, 1500W peak pulse, 34.8V standoff, DO-201AA axial.","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":"1.5KE43","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"38.7V","Voltage - Clamping (Max) @ Ipp":"61.9V","Voltage - Reverse Standoff (Typ)":"34.8V","Current - Peak Pulse (10/1000µs)":"24.2A"}},"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/1.5KE43-E3%2F54/alternatives.json"},"ai":{"faq":[{"question":"What is the 1.5KE43-/54 used for?","answer":"It is a 1500 W peak pulse Zener TVS diode used to clamp voltage transients on a 34.8 V DC rail. The 61.9 V clamping voltage protects downstream circuitry from surges such as lightning-induced transients, inductive load switching, or ESD events in general-purpose power and signal lines."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE43-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/1.5KE43-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}}