{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE91A-TB","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5KE91A-TB","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5KE91A-TB","factsUrl":"https://icboms.com/api/mcp/products/1.5KE91A-TB","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse Inc. 1.5KE series Zener TVS diode, unidirectional, 1500W peak pulse power, 77.8V reverse standoff, DO-201AA axial-lead package, Tape & Box.","salesMarkdown":"## What the 1500W peak pulse rating means for your rail The 1.5KE91A-TB: The breakdown voltage range starts at 86.5V minimum, so the diode does not conduct during normal 77.8V operation. ## Package and board-fit constraints Housed in a DO-201AA (DO-27) axial-lead package, the 1.5KE91A-TB is a through-hole part. The lead diameter and body length dictate the PCB hole size and the bend radius for vertical or horizontal mounting — standard for high-power TVS diodes where the lead cross-section carries the surge current without fusing. The Tape & Box (TB) packaging format is a bulk or ammo-pack for through-hole insertion, not tape-and-reel. This affects how the part feeds into automatic insertion equipment — confirm the feeder compatibility if your line expects reeled parts. No pin-compatible second-source or successor is recorded in the official documentation.","metaTitle":"Littelfuse 1.5KE91A-TB TVS Diode, 1500W, 77.8V Standoff","metaDescription":"Littelfuse 1.5KE91A-TB unidirectional Zener TVS, 1500W peak pulse, 77.8V reverse standoff, DO-201. Active production. 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 & Box (TB)","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":"$0.2611","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/f1ea870152ad203d90f672f2af1c1ed0.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5KE91A-TB","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-TB 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}}