{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE220A","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5KE220A","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5KE220A","factsUrl":"https://icboms.com/api/mcp/products/1.5KE220A","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse Inc. 1.5KE series, TVS Zener diode, unidirectional, 1500W peak pulse power, 185V reverse standoff, 328V clamping, DO-201AA axial package, through-hole.","salesMarkdown":"## What the 1500W rating means for your rail The 1.5KE220A: That 1500W figure is the peak power the part can absorb in a single surge event — it is not continuous dissipation. For a 185V rail, the device starts conducting at 209V minimum breakdown and hard-clamps at 328V maximum, shunting up to 4.6A of surge current away from the downstream circuitry. ## Board-fit and rework considerations Housed in a DO-201AA (DO-27) axial leaded package, this is a through-hole part. The axial leads are robust — they handle the thermal cycling of wave solder without issue. If you are hand-soldering a replacement on a rework bench, the body is large enough to grip with standard tweezers, and the cathode band is clearly marked. The 175°C maximum junction temperature gives good margin for the soldering iron tip; just keep the dwell under 5 seconds at 350°C to avoid cooking the die. The wide junction temperature rating means the leakage current at 85°C ambient is still manageable — the part does not thermally run away under normal bias.","metaTitle":"Littelfuse 1.5KE220A TVS Diode, 1500W, 185V Standoff, DO-201","metaDescription":"Littelfuse 1.5KE220A unidirectional TVS, 1500W peak pulse (10/1000µs), 185V reverse standoff, 328V clamping. DO-201 axial package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Littelfuse Inc.","Type":"Zener","Series":"1.5KE","Package":"Tape & Reel (TR); Cut Tape (CT)","Applications":"General Purpose","Mounting Type":"Through Hole","Package / Case":"DO-201AA, DO-27, Axial","Product Status":"Active","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)":"209V","Voltage - Clamping (Max) @ Ipp":"328V","Voltage - Reverse Standoff (Typ)":"185V","Current - Peak Pulse (10/1000µs)":"4.6A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.8200","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/f1ea870152ad203d90f672f2af1c1ed0.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What package does the 1.5KE220A come in?","answer":"It is supplied in a DO-201AA (DO-27) axial leaded through-hole package."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5KE220A","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/1.5KE220A when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}