{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE27ARL4G","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5KE27ARL4G","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5KE27ARL4G","factsUrl":"https://icboms.com/api/mcp/products/1.5KE27ARL4G","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse Inc. Mosorb™ Zener TVS, 1.5KE27ARL4G, 1500W peak pulse power, 23.1V reverse standoff, 37.5V clamping, unidirectional, DO-201AD axial, Tape & Reel.","salesMarkdown":"The 1.5KE27ARL4G: Breakdown voltage is guaranteed at 25.7 V minimum, so a 24 V nominal rail with 10 % tolerance (26.4 V max) stays below the avalanche threshold in steady state; the TVS only conducts during an overvoltage transient. Unidirectional single-channel design means it protects one polarity — reverse the leads and the forward voltage drop is a diode drop, not a clamp, so orientation in the DO-201AD axial package matters on the board. Operating junction temperature spans -65 °C to 175 °C — wide enough for industrial and telecom gear that sees thermal cycling, but the 1500 W rating derates above 25 °C ambient per the standard power-derating curve for this package.","metaTitle":"1.5KE27ARL4G Littelfuse Mosorb Zener, 1.5 kW, 37.5V Clamp","metaDescription":"Littelfuse 1.5KE27ARL4G obsolete Zener TVS, 1500W peak pulse, 23.1V standoff, 37.5V clamp, DO-201AD axial. 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)":"25.7V","Voltage - Clamping (Max) @ Ipp":"37.5V","Voltage - Reverse Standoff (Typ)":"23.1V","Current - Peak Pulse (10/1000µs)":"40A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/b2bad05ac2a782d44789dbfb00c46ecc.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5KE27ARL4G","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/1.5KE27ARL4G 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}}