{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE56C","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5KE56C","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5KE56C","factsUrl":"https://icboms.com/api/mcp/products/1.5KE56C","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse Inc. 1.5KE series Zener TVS diode, bidirectional, 1500W peak pulse power, 47.8V reverse standoff, DO-201AA axial package, Tape & Reel.","salesMarkdown":"## Lifecycle status — obsolete, no direct successor Littelfuse has marked the 1.5KE56C as obsolete. ## Protection envelope — 1500 W peak pulse, 47.8 V standoff The breakdown voltage range starts at 50.4 V, so the device begins conducting before the rail exceeds the safe operating area of downstream components. A single bidirectional channel protects against both positive and negative surges — useful on AC signal lines or DC rails where polarity reversal is possible, without needing two diodes back-to-back. ## Temperature grade and package The DO-201AA (DO-27) axial-lead package is through-hole mounted, suited for point-to-point wiring or PCB layouts that need a robust mechanical anchor for high-surge paths.","metaTitle":"1.5KE56C Littelfuse Obsolete TVS Diode, 1500W Bidirectional","metaDescription":"Littelfuse 1.5KE56C Zener TVS diode, 1500W peak pulse, 47.8V standoff, DO-201. Obsolete — sourced to order. RFQ for availability.","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","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"DO-201","Voltage - Breakdown (Min)":"50.4V","Voltage - Clamping (Max) @ Ipp":"80.85V","Voltage - Reverse Standoff (Typ)":"47.8V","Current - Peak Pulse (10/1000µs)":"19.7A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.7081","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/f1ea870152ad203d90f672f2af1c1ed0.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5KE56C/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5KE56C","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/1.5KE56C 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}}