{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE210-B","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5KE210-B","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5KE210-B","factsUrl":"https://icboms.com/api/mcp/products/1.5KE210-B","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse Inc. 1.5KE series Zener TVS diode, 1.5KE210-B, 1500W peak pulse power, DO-201AA axial package, through-hole, unidirectional, bulk.","salesMarkdown":"## Device identity and board function The 1.5KE210-B: The DO-201AA (DO-27, axial) through-hole package suits point-to-point wiring on terminal blocks or PCB mounting where the lead bend radius is controlled to avoid stress cracks in the glass passivation. ## Temperature envelope and junction reality Operating junction temperature range spans -55°C to 175°C — the 175°C ceiling is the silicon die limit, not the solder joint. In a 125°C ambient, derate the peak pulse power by the thermal resistance curve; the 1500 W rating is at 25°C lead temperature. The unidirectional channel (single line) means the cathode band identifies the anode-to-ground orientation — reverse the polarity and the device conducts at the Zener knee instead of clamping the transient. ## Obsolete status and sourcing path Quantities are lot-specific; availability and pricing are confirmed at RFQ time.","metaTitle":"Littelfuse 1.5KE210-B Zener TVS, 1500W, DO-201, Obsolete","metaDescription":"Littelfuse 1.5KE210-B Zener TVS diode, 1500W peak pulse power, DO-201AA axial package. Obsolete status.","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)":"-","Voltage - Clamping (Max) @ Ipp":"-","Voltage - Reverse Standoff (Typ)":"-","Current - Peak Pulse (10/1000µs)":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/f1ea870152ad203d90f672f2af1c1ed0.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the peak pulse power rating of the 1.5KE210-B?","answer":"1500 W (1.5 kW) at 10/1000 µs waveform, measured at 25°C lead temperature. Derate for higher ambient per the thermal impedance curve in the datasheet."},{"question":"What package does the 1.5KE210-B use?","answer":"DO-201AA (also known as DO-27, axial leaded). Through-hole mounting with a glass-passivated junction."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5KE210-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/1.5KE210-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}}