{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE51HE3/73","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE51HE3-73","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE51HE3-73","factsUrl":"https://icboms.com/api/mcp/products/1.5KE51HE3%2F73","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor, Automotive AEC-Q101 TransZorb TVS, 1.5KE51HE3/73, Zener type, 1500W peak pulse, 41.3V standoff, DO-201AA axial, Tape & Box.","salesMarkdown":"Vishay lists the 1.5KE51HE3/73 as Obsolete. ## Automotive-grade TransZorb — what the ratings deliver This is a 1500 W (1.5 kW) peak pulse power TransZorb TVS diode in the Vishay Automotive, AEC-Q101 series. The reverse standoff voltage is 41.3 V typ, so it sits across a 24 V or 28 V bus without conducting leakage in normal operation. Breakdown occurs at 45.9 V min, and clamping is held to 73.5 V max at the 20.4 A peak pulse current. That clamping ceiling protects downstream ECUs, sensors, and modules rated for 80 V or 100 V bus transients. ## Package and temperature envelope Housed in the DO-201AA / DO-27 axial-lead package, the 1.5KE51HE3/73 is a through-hole part — the lead bend and body length match the standard 1.5KE footprint used across the series.","metaTitle":"Vishay 1.5KE51HE3/73 TVS Diode, 1500W, DO-201AA","metaDescription":"Vishay 1.5KE51HE3/73 automotive AEC-Q101 TransZorb TVS, 1500W peak pulse, 41.3V standoff, 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":"Automotive, AEC-Q101, TransZorb®","Package":"Tape & Box (TB)","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":"1.5KE51","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"45.9V","Voltage - Clamping (Max) @ Ipp":"73.5V","Voltage - Reverse Standoff (Typ)":"41.3V","Current - Peak Pulse (10/1000µs)":"20.4A"}},"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/1.5KE51HE3%2F73/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to 1.5KE51HE3/73?","answer":"The 1.5KE series includes many voltage variants in the same DO-201AA package, but a direct replacement with identical breakdown and clamping values is not specified. Verify the required standoff and clamping voltage against the BOM before substituting."},{"question":"What compliance documentation does Vishay provide for 1.5KE51HE3/73?","answer":"The part carries AEC-Q101 automotive qualification, which includes the reliability stress tests and PPAP documentation typical for automotive-grade discretes."},{"question":"How do I get current pricing and availability for 1.5KE51HE3/73?","answer":"Submit an RFQ through this listing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE51HE3-73","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/1.5KE51HE3-73 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}}