{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE480","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5KE480","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5KE480","factsUrl":"https://icboms.com/api/mcp/products/1.5KE480","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse Inc. 1.5KE series Zener TVS diode, 1.5KE480, 1500W peak pulse power, 408V reverse standoff, unidirectional, DO-201AA axial-lead package, Tape & Reel.","salesMarkdown":"## 408 V standoff, 1500 W peak — what the ratings mean The 1.5KE480: The reverse standoff voltage of 408 V is the maximum continuous DC voltage the diode blocks without conducting — match this to your nominal rail voltage, not the peak. When a surge hits, the diode breaks down at a minimum of 432 V and clamps the transient to 690.9 V maximum while shunting 2.3 A of peak pulse current (, 10/1000 µs waveform). The 1.5 kW rating is a peak figure, not continuous; the device is not intended for power-line protection. ## DO-201 axial — board-fit and temperature envelope Through-hole mounting in a DO-201AA / DO-27 axial package, with the supplier device package designated DO-201. The axial leads suit point-to-point wiring or through-hole PCB layouts — the body is the same diameter as a standard 1N62xx series, so existing board footprints for similar 1500 W TVS diodes are likely compatible. Junction temperature range spans -55°C to 175°C, covering industrial and outdoor equipment where the ambient may hit 85°C and the diode self-heats during a surge. The wide Tj margin means derating is only necessary above 25°C ambient per the datasheet curve. ## Obsolete — sourcing reality and what to expect For existing BOM lines or repair stock, the 1.5KE480 is available through independent surplus and broker channels. Sourced to order against an RFQ — date codes and lot traceability confirmed at quote time. No stock-holding claim; availability verified per request.","metaTitle":"Littelfuse 1.5KE480 Zener TVS Diode, 1500W, 408V Standoff","metaDescription":"Obsolete Littelfuse 1.5KE480 Zener TVS diode, 1500W peak pulse, 408V reverse standoff, DO-201 package. 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)":"432V","Voltage - Clamping (Max) @ Ipp":"690.9V","Voltage - Reverse Standoff (Typ)":"408V","Current - Peak Pulse (10/1000µs)":"2.3A"}},"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 closest pin-compatible alternative to the 1.5KE480?","answer":"A functionally similar TVS diode in the same 1.5KE series with a 408 V standoff rating may be available — verify the breakdown voltage and clamping spec against your surge requirements before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5KE480","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/1.5KE480 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}}