{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE100A","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5KE100A","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5KE100A","factsUrl":"https://icboms.com/api/mcp/products/1.5KE100A","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse Inc. 1.5KE series Zener TVS diode, 1.5KE100A, 1500W peak pulse power, 85.5V reverse standoff, 137V clamping, unidirectional, DO-201AA axial package.","salesMarkdown":"## What the 1500W rating means for your rail protection The 1.5KE100A: That 1500W figure is the peak pulse power the device can absorb in a single transient event — it is not continuous dissipation. For a 24V or 48V DC bus with a 85.5V reverse standoff voltage, this part stays transparent during normal operation and only conducts when the line spikes above the breakdown threshold of 95V minimum. The 11.1A peak pulse current at the 10/1000µs test waveform tells you the current the diode shunts during the surge. If your transient source impedance is low enough to push more than 11.1A, the device may fail short — so the circuit designer must verify the surge current stays within this limit for the expected transient energy. ## Package and board integration The DO-201AA axial package is a through-hole form factor with a 0.052-inch diameter lead. It mounts into a 0.040-inch plated-through hole on the PCB. The axial leads require bending to a 90-degree angle for vertical mounting or can be left straight for horizontal lay-flat installation. The supplier device package is DO-201, which is the same mechanical outline. The through-hole package is hand-solderable and reworkable, which matters for prototype builds or field repairs where reflow is not an option.","metaTitle":"1.5KE100A Littelfuse TVS Diode, 1500W, 85.5V Standoff","metaDescription":"Littelfuse 1.5KE100A Zener TVS diode, 1500W peak pulse power, 85.5V reverse standoff, clamps at 137V. Active production, DO-201 axial package. Request a quote.","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)":"95V","Voltage - Clamping (Max) @ Ipp":"137V","Voltage - Reverse Standoff (Typ)":"85.5V","Current - Peak Pulse (10/1000µs)":"11.1A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6700","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/f1ea870152ad203d90f672f2af1c1ed0.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What package does 1.5KE100A come in?","answer":"The 1.5KE100A uses a DO-201AA axial leaded package, also referred to as DO-27 or DO-201. It is a through-hole component with 0.052-inch diameter leads."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5KE100A","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/1.5KE100A 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}}