{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE20C-E3/54","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE20C-E3-54","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE20C-E3-54","factsUrl":"https://icboms.com/api/mcp/products/1.5KE20C-E3%2F54","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division TransZorb® bidirectional Zener TVS diode, 1.5KE20C-/54, 1500W peak pulse, 29.1V clamp, DO-201AA axial, Tape & Reel.","salesMarkdown":"## 1500 W peak pulse — what the rating means for your protection budget The 1.5KE20C-E3/54: At that pulse condition the clamping voltage holds at 29.1 V max while the diode handles 51.5 A of peak pulse current — a combination that shunts surge energy from a 16.2 V nominal rail before it reaches the downstream silicon. ## Bidirectional clamping and the voltage window The reverse standoff voltage is 16.2 V, meaning the diode draws negligible leakage current below that rail voltage in normal operation. Breakdown starts at 18 V minimum, and the clamping ceiling is 29.1 V at the rated pulse current — a 13 V window from standoff to clamp that limits the overvoltage exposure of a 12 V or 15 V bus. ## Obsolete — sourcing reality for the BOM line Vishay has marked the 1.5KE20C-/54 as obsolete. ## Through-hole package and temperature range The DO-201AA (DO-27) axial-lead package is a through-hole form factor that solders into a single-hole board layout — the lead bend and hole diameter follow standard axial diode footprints.","metaTitle":"Vishay 1.5KE20C-E3/54 TransZorb TVS, 1500W, 29.1V Clamp","metaDescription":"Vishay 1.5KE20C-E3/54 TransZorb bidirectional Zener TVS, 1500W peak pulse, 29.1V clamp, DO-201AA. Obsolete — sourced to order. Request a quote.","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":"1.5KE20","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 package does 1.5KE20C-/54 come in?","answer":"It is supplied in a DO-201AA (DO-27) axial-lead through-hole package, on Tape & Reel (TR)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE20C-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/1.5KE20C-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}}