{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE47CA","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5KE47CA","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5KE47CA","factsUrl":"https://icboms.com/api/mcp/products/1.5KE47CA","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse Inc. 1.5KE series bidirectional TVS diode, Type Zener, 1.5KE47CA, 1500W peak pulse power, 40.2V reverse standoff, 64.8V clamping, DO-201AA axial package.","salesMarkdown":"## Obsolete — sourcing reality for the 1.5KE47CA The 1.5KE47CA is officially designated Obsolete by Littelfuse. No successor part number is recorded on the manufacturer's lifecycle notice. Date-code provenance and lot traceability are confirmed at quote time. ## Clamping voltage and the protection window The 64.8 V clamp means downstream components rated for 80 V or higher see a safe voltage during a surge event — the TVS absorbs the energy, not the load. ## Bidirectional — one device for both polarities A single bidirectional channel handles positive and negative transients symmetrically, so a 40.2 V signal pair or power rail needs only one device per line — no series orientation to get wrong. The peak pulse current rating of 23.5 A (10/1000 µs) defines the surge the device can survive; for a shorter transient the energy capability scales inversely with pulse duration per the 1.5KE family's power-derating curve. ## Through-hole axial — board-fit and temperature range Housed in a DO-201AA (DO-27) axial leaded package, the 1.5KE47CA mounts through-hole — the large body and lead cross-section carry the 1500 W pulse without the thermal bottleneck of a smaller SMD package.","metaTitle":"Littelfuse 1.5KE47CA TVS Diode, 1500W, 40.2V Standoff","metaDescription":"Littelfuse 1.5KE47CA bidirectional TVS, 1500W peak pulse, 64.8V clamp. Obsolete — sourced to order via independent distribution. RFQ for availability.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","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)":"44.7V","Voltage - Clamping (Max) @ Ipp":"64.8V","Voltage - Reverse Standoff (Typ)":"40.2V","Current - Peak Pulse (10/1000µs)":"23.5A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6300","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/149eca2cbf10498ecc0c7eab912fe9f4.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How do I get current pricing and availability for the 1.5KE47CA?","answer":"Submit an RFQ against your BOM quantity. No stock-holding claim is made on this page."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5KE47CA","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/1.5KE47CA 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}}