{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE91A","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5KE91A","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5KE91A","factsUrl":"https://icboms.com/api/mcp/products/1.5KE91A","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse Inc. 1.5KE series Zener TVS diode, 1.5KE91A, 1500W peak pulse power, 77.8V reverse standoff, 125V clamping, 12.2A peak pulse current, DO-201AA axial package, unidirectional.","salesMarkdown":"## 1500 W peak pulse in a DO-201 axial body The 1.5KE91A: The DO-201AA axial-lead package suits through-hole assembly in power supplies, industrial controls, and general-purpose protection circuits. ## Clamping voltage and standoff margin The minimum breakdown voltage is 86.5 V, giving a guard band above the standoff. The maximum clamping voltage of 125 V at 12.2 A peak pulse current defines the voltage the downstream circuitry must survive during a transient event. The 1500 W rating is derated at elevated temperatures per the standard power-temperature curve for axial-lead TVS diodes. ## Active production and sourcing posture It is available through independent distribution channels, quoted to order against BOM quantities.","metaTitle":"Littelfuse 1.5KE91A TVS Diode, 1500W, 77.8V Standoff","metaDescription":"Littelfuse 1.5KE91A Zener TVS diode, 1500W peak pulse power, 77.8V standoff, 125V clamping. Active production. DO-201AA axial package. Quoted to order.","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)":"86.5V","Voltage - Clamping (Max) @ Ipp":"125V","Voltage - Reverse Standoff (Typ)":"77.8V","Current - Peak Pulse (10/1000µs)":"12.2A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6700","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/149eca2cbf10498ecc0c7eab912fe9f4.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5KE91A/alternatives.json"},"ai":{"faq":[{"question":"What package does the 1.5KE91A come in?","answer":"It is supplied in a DO-201AA (DO-27) axial-lead through-hole package. Available packaging options include Tape & Reel (TR) and Cut Tape (CT)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5KE91A","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/1.5KE91A 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}}