{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE43AHE3/51","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE43AHE3-51","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE43AHE3-51","factsUrl":"https://icboms.com/api/mcp/products/1.5KE43AHE3%2F51","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division, Automotive AEC-Q101 TransZorb® TVS, Type Zener, 1.5KE43AHE3/51, 1500W peak pulse, 36.8V standoff, DO-201AA axial through-hole, Bulk.","salesMarkdown":"## 1500 W peak pulse, 36.8 V standoff — the clamping envelope for 24 V automotive rails The 1.5KE43AHE3/51: Its 36.8 V reverse standoff voltage sits above the steady-state rail, while the 40.9 V minimum breakdown and 59.3 V maximum clamping at 25.3 A define the protection window — a 24 V system sees a clamped surge held under 60 V, keeping downstream electronics within their safe operating area. ## Obsolete — sourced through surplus and broker channels Vishay has marked the 1.5KE43AHE3/51 as obsolete. A functional replacement requires a parametric search for a 1500 W, 36.8 V standoff TVS in a DO-201AA package; no pin-compatible direct drop-in is guaranteed without verifying the clamping curve and AEC-Q101 grade.","metaTitle":"Vishay 1.5KE43AHE3/51 TVS Diode, 1500W, 36.8V Standoff","metaDescription":"Vishay 1.5KE43AHE3/51 obsolete TransZorb TVS diode, 1500W peak pulse, 36.8V standoff, AEC-Q101 automotive.","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":"1.5KE43","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"40.9V","Voltage - Clamping (Max) @ Ipp":"59.3V","Voltage - Reverse Standoff (Typ)":"36.8V","Current - Peak Pulse (10/1000µs)":"25.3A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5346","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/55e3e40e24fd2c3f96443c3e231bf459.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5KE43AHE3%2F51/alternatives.json"},"ai":{"faq":[{"question":"What automotive qualification does the 1.5KE43AHE3/51 carry?","answer":"It is AEC-Q101 qualified, part of Vishay's Automotive TransZorb series."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE43AHE3-51","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/1.5KE43AHE3-51 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}}