{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE11ARL4G","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5KE11ARL4G","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5KE11ARL4G","factsUrl":"https://icboms.com/api/mcp/products/1.5KE11ARL4G","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse Mosorb™ Zener TVS diode, 1.5KE11ARL4G, 1500W peak pulse, 9.4V reverse standoff, unidirectional, DO-201AD axial, Tape & Reel.","salesMarkdown":"## What the 1500W peak pulse rating means for your board The 1.5KE11ARL4G: At the 10/1000µs test waveform it handles 96A peak pulse current before the clamping voltage hits 15.6V — that is the ceiling the downstream IC sees. For a 12V bus under load-dump or inductive kickback, the 10.5V minimum breakdown gives enough margin to avoid nuisance triggering on normal ripple. ## Obsolete — sourcing through independent channels Littelfuse has marked the 1.5KE11ARL4G as Obsolete. For BOM lines that still call this order code, availability is limited to surplus and broker inventory — lot quantities and date codes vary, and each lot is confirmed at RFQ. No pin-compatible direct replacement exists within the Mosorb family that matches the exact 9.4V standoff and 1500W rating in the same DO-201AD package; a board-level substitution would require re-qualifying the clamping voltage and peak current.","metaTitle":"1.5KE11ARL4G Littelfuse Mosorb Zener TVS, 1500W, Obsolete","metaDescription":"Littelfuse 1.5KE11ARL4G Mosorb Zener TVS diode, 1500W peak pulse, 9.4V standoff, DO-201AD axial. Obsolete — 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":"Mosorb™","Package":"Tape & Reel (TR)","Applications":"General Purpose","Mounting Type":"Through Hole","Package / Case":"DO-201AD, Axial","Product Status":"Obsolete","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5KE","Operating Temperature":"-65°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"Axial","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"10.5V","Voltage - Clamping (Max) @ Ipp":"15.6V","Voltage - Reverse Standoff (Typ)":"9.4V","Current - Peak Pulse (10/1000µs)":"96A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.1800","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/b2bad05ac2a782d44789dbfb00c46ecc.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to the 1.5KE11ARL4G?","answer":"The Mosorb series includes other voltage variants, but none match the exact 9.4V standoff, 1500W rating, and DO-201AD package simultaneously. A board-level substitution would require re-evaluating the breakdown and clamping voltages."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5KE11ARL4G","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/1.5KE11ARL4G 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}}