{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE440A","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"1.5KE440A","canonicalUrl":"https://icboms.com/stmicroelectronics/1.5KE440A","factsUrl":"https://icboms.com/api/mcp/products/1.5KE440A","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics 1.5KE440A TRANSIL™ TVS diode, unidirectional, 1500W peak pulse power, 418V min breakdown, 376V standoff, 776V clamping, DO-201 axial, through-hole.","salesMarkdown":"## Transient suppressor for 440V DC rails It is rated for 1500W peak pulse power (10/1000 µs waveform) and offers a minimum breakdown voltage of 418V, a reverse standoff of 376V, and a maximum clamping voltage of 776V at 13A peak pulse current (8/20 µs). ## Clamping voltage and surge current — what they mean for protection The 418V minimum breakdown ensures the device starts conducting before the protected rail exceeds its safe limit, while the 776V maximum clamping defines the worst-case voltage the downstream circuitry must survive. The 13A peak pulse current (8/20 µs) gives the surge capacity for typical industrial transients; the 1500W rating (10/1000 µs) is the energy-handling benchmark for longer-duration events. No power-line protection is built in — this is a secondary-side suppressor, not a mains-rated MOV replacement.","metaTitle":"STMicroelectronics 1.5KE440A TVS Diode, 1500W","metaDescription":"STMicroelectronics 1.5KE440A TRANSIL™ TVS diode, 1500W peak pulse power, 418V min breakdown, 376V standoff, DO-201 axial. Active, available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"STMicroelectronics","Type":"Zener","Series":"1.5KE, TRANSIL™","Package":"Cut Tape (CT); Tape & Box (TB)","Applications":"General Purpose","Mounting Type":"Through Hole","Package / Case":"DO-201AA, DO-27, Axial","Product Status":"Active","lifecycle_stage":"eol_hot","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5KE440","Operating Temperature":"-","Power Line Protection":"No","Capacitance @ Frequency":"360pF @ 1MHz","Supplier Device Package":"DO-201","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"418V","Voltage - Clamping (Max) @ Ipp":"776V","Voltage - Reverse Standoff (Typ)":"376V","Current - Peak Pulse (10/1000µs)":"13A (8/20µs)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.1600","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/572f99690aeb2b0f302ed9cdcfd976ec.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5KE440A/alternatives.json"},"ai":{"faq":[{"question":"What is the equivalent or replacement for 1.5KE440A?","answer":"The 1.5KE440A is part of the STMicroelectronics 1.5KE series; a pin-compatible alternative within the same family would be any unidirectional 1.5KE device with the same DO-201 package and similar breakdown voltage, such as the 1.5KE440CA (bidirectional version). For a direct functional equivalent from other manufacturers, look for a 1500W TVS with a 376V standoff and 418V breakdown in a DO-201 package."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/1.5KE440A","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/1.5KE440A 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}}