{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE220C-B","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5KE220C-B","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5KE220C-B","factsUrl":"https://icboms.com/api/mcp/products/1.5KE220C-B","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse 1.5KE series bidirectional Zener TVS diode, 1.5KE220C-B, 1500W peak pulse power, 185V reverse standoff, DO-201AA axial through-hole, bulk.","salesMarkdown":"## DO-201 axial TVS — board-fit and parametric baseline The 1.5KE220C-B: The 1500W (1.5kW) peak pulse power rating at 10/1000µs waveform defines its transient energy-handling capability for a single surge event. The 185V standoff means the TVS draws negligible leakage below normal line voltage, making it suitable for 120VAC or 170VDC rail protection where the steady-state rail stays under the standoff threshold. The single bidirectional channel protects against both positive and negative transients without needing two diodes back-to-back — a space-saving advantage on the board. ## Obsolete — sourcing through independent channels Littelfuse has marked the 1.5KE220C-B as Obsolete. No official successor order code is recorded in the lifecycle data. A board-level qualification of any alternative is recommended before substitution.","metaTitle":"Littelfuse 1.5KE220C-B TVS Diode, 1.5kW, 185V, DO-201","metaDescription":"Littelfuse 1.5KE220C-B bidirectional Zener TVS, 1500W peak pulse, 185V reverse standoff, DO-201 axial. Obsolete — sourced to order. Request 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","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"DO-201","Voltage - Breakdown (Min)":"198V","Voltage - Clamping (Max) @ Ipp":"344.4V","Voltage - Reverse Standoff (Typ)":"185V","Current - Peak Pulse (10/1000µs)":"4.6A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/149eca2cbf10498ecc0c7eab912fe9f4.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What package does the 1.5KE220C-B use?","answer":"It uses a DO-201AA (DO-27) axial-lead through-hole package, supplied in bulk. The supplier device package is designated DO-201."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5KE220C-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/1.5KE220C-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}}