{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE20","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5KE20","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5KE20","factsUrl":"https://icboms.com/api/mcp/products/1.5KE20","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse Inc. 1.5KE series Zener TVS diode, 1.5KE20, 1500W peak pulse power, 17.1V reverse standoff, 29.09V clamping, DO-201AA axial, Tape & Reel.","salesMarkdown":"Housed in a DO-201AA (DO-27) axial-lead package, the 1.5KE20 mounts through-hole and is supplied on Tape & Reel. The DO-201 body is the standard footprint for 1.5 kW TVS diodes — the lead diameter and body length match the existing PCB layout for any 1.5KE-series part, so swapping in the 1.5KE20 requires no board spin if the hole pattern is already there. ## Temperature range and deployment context The wide temperature margin means the clamping voltage and leakage current stay within spec across the full range — critical for a protection diode that must not become a load itself at high temperature. ## Lifecycle reality — obsolete, but available through independent channels Littelfuse lists the 1.5KE20 as Obsolete.","metaTitle":"Littelfuse 1.5KE20 TVS Diode, 1500W, 17.1V Standoff, DO-201","metaDescription":"Littelfuse 1.5KE20 Zener TVS diode, 1500W peak pulse, 17.1V reverse standoff, 54.9A Ipp. Obsolete — sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Littelfuse Inc.","Type":"Zener","Series":"1.5KE","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":"1.5KE","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"DO-201","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"18V","Voltage - Clamping (Max) @ Ipp":"29.09V","Voltage - Reverse Standoff (Typ)":"17.1V","Current - Peak Pulse (10/1000µs)":"54.9A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6700","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/f1ea870152ad203d90f672f2af1c1ed0.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5KE20/alternatives.json"},"ai":{"faq":[{"question":"What is the 1.5KE20's type and series?","answer":"It is a Zener TVS diode from the Littelfuse 1.5KE series, unidirectional, single-channel."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5KE20","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/1.5KE20 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}}