{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE27AG","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5KE27AG","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5KE27AG","factsUrl":"https://icboms.com/api/mcp/products/1.5KE27AG","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse Mosorb™ series, Zener TVS diode, 1.5KE27AG, DO-201AD axial, 1500W peak pulse power, 23.1V reverse standoff voltage, unidirectional.","salesMarkdown":"## 1500 W peak pulse in an axial DO-201AD The 1.5KE27AG: The 40 A peak pulse current rating tells you the surge the part can handle before the junction exceeds its thermal limit — this is the figure to compare against your system's expected transient energy, not the standoff voltage alone. Operating temperature spans -65°C to 175°C (junction), covering the full industrial and automotive ambient range with margin for self-heating during a surge event. ## Obsolete — sourced through independent channels Littelfuse lists the 1.5KE27AG as obsolete. No official successor or second-source is recorded in the manufacturer's lifecycle data. Available through independent surplus and broker channels. Quantities are lot-specific; stock position and pricing are confirmed at RFQ. The axial DO-201AD package is a standard footprint, so a pin-compatible drop-in from another TVS family may exist — cross-reference against your clamp voltage and peak pulse requirements at quote time.","metaTitle":"Littelfuse 1.5KE27AG TVS Diode, 1500W, 23.1V Standoff","metaDescription":"Littelfuse 1.5KE27AG Mosorb™ Zener TVS, 1500W peak pulse, 23.1V reverse standoff, 37.5V clamp. Obsolete, sourced to order. Request a quote.","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":"Bulk","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":"$0.6700","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 1.5KE27AG?","answer":"No official direct replacement is recorded in the lifecycle data. Confirm the replacement's clamping curve at your operating current before committing the BOM line."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5KE27AG","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/1.5KE27AG 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}}