{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE530CA-B","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5KE530CA-B","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5KE530CA-B","factsUrl":"https://icboms.com/api/mcp/products/1.5KE530CA-B","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse Inc. 1.5KE series TVS diode, Type Zener, Bidirectional, 1 channel, 1500W peak pulse power, DO-201AA / DO-27 Axial, Through Hole, Bulk.","salesMarkdown":"## 1.5 kW bidirectional TVS for high-voltage DC bus clamping The 1.5KE530CA-B: Its 451 V reverse standoff voltage and 725 V clamping point make it a fit for protecting 400 VDC bus rails or 277 VAC rectified lines against transients, with a 503.5 V minimum breakdown ensuring the avalanche triggers before the bus reaches destructive levels. With a single bidirectional channel, this part clamps both polarities in one DO-201 axial package — saving board space compared to back-to-back unipolar pairs. The 2.1 A peak pulse current at the clamping voltage is the current the device shunts during the transient; the 1.5 kW rating governs the energy it absorbs before the junction temperature exceeds limits. ## Through-hole DO-201 with wide temperature margin Housed in a DO-201AA / DO-27 axial-lead package, the 1.5KE530CA-B mounts through-hole and is supplied in bulk tube. The 1.5KE series does not include power-line protection features (no internal foldback or crowbar), so this part is intended for signal-line, DC bus, or low-impedance secondary-side clamping — not for direct mains AC input protection where coordinated overcurrent devices are required. ## Active production — sourcing and lifecycle The DO-201 package is a standard footprint, and the bulk tube packaging suits both prototyping and low-to-medium volume assembly.","metaTitle":"Littelfuse 1.5KE530CA-B TVS Diode, 1.5kW, 451V Standoff","metaDescription":"Active Littelfuse 1.5KE530CA-B bidirectional TVS, 1.5kW peak pulse, 451V standoff, 725V clamp. DO-201 axial. Quoted to order.","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":"Bulk","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)":"503.5V","Voltage - Clamping (Max) @ Ipp":"725V","Voltage - Reverse Standoff (Typ)":"451V","Current - Peak Pulse (10/1000µs)":"2.1A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5014","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/f1ea870152ad203d90f672f2af1c1ed0.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What package does the 1.5KE530CA-B come in?","answer":"It is supplied in a DO-201AA / DO-27 axial-lead through-hole package, shipped in bulk tube."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5KE530CA-B","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/1.5KE530CA-B 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}}