{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE75CA","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5KE75CA","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5KE75CA","factsUrl":"https://icboms.com/api/mcp/products/1.5KE75CA","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse Inc. 1.5KE series TVS diode, bidirectional Zener, 1.5KE75CA, 1500W peak pulse power, 64.1V reverse standoff, 103V clamping, DO-201AA axial through-hole.","salesMarkdown":"## What the 1500 W peak pulse rating means for your protection design The 1.5KE75CA: That energy rating assumes a 25 °C starting junction; at 175 °C the derating curve drops to roughly 75 % of the 1500 W rating, so a hot-running board needs a wider margin or a higher-power device. The 64.1 V reverse standoff voltage means the diode stays off below that rail — a 48 V nominal bus with 20 % tolerance (57.6 V max) still sits below the standoff, so the TVS does not leak appreciably during normal operation. The 71.3 V minimum breakdown voltage confirms the avalanche threshold starts above the bus tolerance band. ## Obsolete — sourcing reality for the 1.5KE75CA The DO-201AA axial package and bidirectional Zener construction are standard across the 1.5KE family, so a parametric replacement (same standoff, same pulse rating) from the same series or a competitor's equivalent is the typical migration path — but no pin-compatible cross-reference is documented here. ## Temperature range and deployment environment A TVS in an outdoor telecom rectifier or an engine-bay ECU sees ambient well below 125 °C, so the junction stays within the derated pulse-power envelope. The DO-201 leaded package handles the thermal cycling without solder-joint fatigue that a surface-mount part might show.","metaTitle":"Littelfuse 1.5KE75CA TVS Diode, 1500W, Bidirectional, DO-201","metaDescription":"1.5KE75CA bidirectional TVS diode, 1500W peak pulse, 64.1V standoff, 103V clamp. Obsolete — sourced to order against RFQ. Littelfuse 1.5KE series.","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)":"71.3V","Voltage - Clamping (Max) @ Ipp":"103V","Voltage - Reverse Standoff (Typ)":"64.1V","Current - Peak Pulse (10/1000µs)":"14.8A"}},"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":"Where can I buy the 1.5KE75CA and get a price?","answer":"Submit a request with your target quantity and date-code preference; current pricing and lot availability are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5KE75CA","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/1.5KE75CA 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}}