{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE33-B","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5KE33-B","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5KE33-B","factsUrl":"https://icboms.com/api/mcp/products/1.5KE33-B","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse 1.5KE series Zener TVS diode, 1.5KE33-B, 1500W peak pulse, 28.2V reverse standoff, 47.99V clamping, DO-201AA axial, bulk.","salesMarkdown":"## Through-hole DO-201 package Housed in a DO-201AA (DO-27) axial-lead package, the 1.5KE33-B is a through-hole device intended for board-level transient suppression in general-purpose power and signal circuits. ## Obsolete — sourcing via independent channels Littelfuse lists the 1.5KE33-B as obsolete. No official successor or pin-compatible alternative is recorded from the manufacturer. For new designs, consider a current-production 1.5KE series variant with the same standoff voltage and package.","metaTitle":"1.5KE33-B Littelfuse Zener TVS, 1500W, DO-201","metaDescription":"1.5KE33-B Littelfuse Zener TVS diode, 1500W peak pulse, 28.2V standoff, DO-201 axial. 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":"Littelfuse Inc.","Type":"Zener","Series":"1.5KE","Package":"Bulk","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)":"29.75V","Voltage - Clamping (Max) @ Ipp":"47.99V","Voltage - Reverse Standoff (Typ)":"28.2V","Current - Peak Pulse (10/1000µs)":"33.3A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/f1ea870152ad203d90f672f2af1c1ed0.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5KE33-B/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5KE33-B","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/1.5KE33-B 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}}