{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE56CA","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5KE56CA","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5KE56CA","factsUrl":"https://icboms.com/api/mcp/products/1.5KE56CA","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse Inc. 1.5KE series TVS diode, Type Zener, bidirectional, 1.5KE56CA, 1500W peak pulse power, 47.8V standoff, 77V clamp, DO-201AA axial package.","salesMarkdown":"## Peak pulse power and clamping for transient protection The 1.5KE56CA is a 1500W (1.5kW) peak pulse power TVS diode from Littelfuse's 1.5KE series, designed to clamp transients on general-purpose DC rails. Its 47.8V reverse standoff means it sits across a 48V nominal bus without conducting, then breaks down at a minimum of 53.2V to shunt the surge. The 77V maximum clamping voltage at 19.7A peak pulse current (10/1000µs waveform) defines the voltage the downstream circuitry must survive — a 48V-rated capacitor bank with 20% margin sees 77V as a safe upper bound. This is a single bidirectional channel, so it protects both polarities from a single device — useful on AC-coupled or floating signal lines where the transient may swing either way. ## Through-hole axial package and mounting Housed in a DO-201AA (DO-27) axial-lead package, the 1.5KE56CA is a through-hole device suited for wave-solder or hand-solder assembly. The DO-201 body is standard for 1.5kW TVS diodes — the lead spacing and body diameter match common PCB layouts for 48V bus protection or DC input clamps. No power line protection rating means it is intended for signal or low-voltage DC rail transients, not mains AC clamping.","metaTitle":"Littelfuse 1.5KE56CA TVS Diode, 1500W, Bidirectional, DO-201","metaDescription":"Littelfuse 1.5KE56CA bidirectional TVS diode, 1500W peak pulse power, 47.8V standoff, 77V clamp. Active production. Sourced per RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Littelfuse Inc.","Type":"Zener","Series":"1.5KE","Package":"Tape & Reel (TR) Cut Tape (CT)","Applications":"General Purpose","Mounting Type":"Through Hole","Package / Case":"DO-201AA, DO-27, Axial","Product Status":"Active","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)":"53.2V","Voltage - Clamping (Max) @ Ipp":"77V","Voltage - Reverse Standoff (Typ)":"47.8V","Current - Peak Pulse (10/1000µs)":"19.7A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6300","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/149eca2cbf10498ecc0c7eab912fe9f4.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5KE56CA","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/1.5KE56CA 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}}