{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE20CHE3/73","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE20CHE3-73","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE20CHE3-73","factsUrl":"https://icboms.com/api/mcp/products/1.5KE20CHE3%2F73","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division, TransZorb® Automotive Series, bidirectional TVS Zener diode, 1.5KE20CHE3/73, 1500W peak pulse power, 16.2V reverse standoff, DO-201AA axial package.","salesMarkdown":"## End-of-life sourcing for a 1.5 kW automotive-grade clamp The 1.5KE20CHE3/73: It clamps transients at 29.1 V maximum, with a 16.2 V reverse standoff voltage and a minimum breakdown of 18 V. ## Clamping envelope and pulse capability The single bidirectional channel clamps both polarities symmetrically, so a single device protects a signal line against positive and negative transients without needing series diodes. ## Package and board integration Housed in a DO-201AA (DO-27) axial-lead package, it mounts through-hole — the lead bend and body length match standard TVS footprints used across the 1.5KE family, so a board already laid out for a 1.5KE20A or 1.5KE20CA accepts this part without layout changes. The 1.5KE package suffix is the standard DO-201AA outline; the body diameter and lead spacing are consistent across the entire 1.5KE series, simplifying BOM consolidation. ## Sourcing an obsolete automotive-grade TVS For sustainment programs (medical, defence, or long-life automotive ECUs) that already qualify this part, supply runs through independent distribution.","metaTitle":"1.5KE20CHE3/73 Vishay TVS, 1500W, 16.2V Standoff, Obsolete","metaDescription":"Vishay 1.5KE20CHE3/73 bidirectional TVS diode, 1500W peak pulse, 16.2V standoff, AEC-Q101.","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":"1.5KE20","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Voltage - Breakdown (Min)":"18V","Voltage - Clamping (Max) @ Ipp":"29.1V","Voltage - Reverse Standoff (Typ)":"16.2V","Current - Peak Pulse (10/1000µs)":"51.5A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cbd949ebcf4c95d5b4ea8fdecf87536f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to 1.5KE20CHE3/73?","answer":"No official cross-reference or second-source is recorded for this specific order code. The 1.5KE20CA (non-automotive grade) shares the same DO-201AA package and 1500 W rating but lacks AEC-Q101 qualification. A board-level replacement requires confirming the automotive-grade requirement before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE20CHE3-73","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/1.5KE20CHE3-73 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}}