{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE530-B","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5KE530-B","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5KE530-B","factsUrl":"https://icboms.com/api/mcp/products/1.5KE530-B","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse Inc. 1.5KE series Zener TVS diode, 1.5KE530-B, 1500W peak pulse power, 477V standoff, unidirectional, DO-201AA/DO-27 axial package, bulk.","salesMarkdown":"## What the 1500W rating means for your protection design The 1.5KE530-B: That 1500W rating is the peak pulse dissipation — the device absorbs a single transient up to that energy level without failing short. For repetitive surges, derate per the pulse derating curve; the 1.5KE series is a standard workhorse for general-purpose transient suppression on AC mains or DC bus lines where the clamping voltage sits above the normal operating rail. The DO-201 axial package (also known as DO-27) is through-hole, which means it survives rework cycles well — a hot-air station lifts it cleanly if the leads are trimmed short, and the body is large enough to read the marking without magnification. ## Obsolete — sourcing through surplus channels Littelfuse lists the 1.5KE530-B as Obsolete. For a BOM that already qualifies this TVS, the obsolete status means the last-time-buy window has closed. A board spin to a different package or a different Littelfuse series (e.g., the 1.5SMC or SMDJ surface-mount families) may be required for new designs.","metaTitle":"Littelfuse 1.5KE530-B Zener TVS, 1500W, DO-201","metaDescription":"Obsolete Littelfuse 1.5KE530-B Zener TVS diode, 1500W peak pulse, 477V standoff, DO-201 axial. Sourced to order against RFQ through independent channels.","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":"Bulk","Applications":"General Purpose","Mounting Type":"Through Hole","Package / Case":"DO-201AA, DO-27, Axial","Product Status":"Obsolete","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","Capacitance @ Frequency":"-","Supplier Device Package":"DO-201","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"477V","Voltage - Clamping (Max) @ Ipp":"761.25V","Voltage - Reverse Standoff (Typ)":"477V","Current - Peak Pulse (10/1000µs)":"2.1A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/f1ea870152ad203d90f672f2af1c1ed0.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How do I get current pricing and availability for the 1.5KE530-B?","answer":"Submit an RFQ. No price or stock figures are published here."},{"question":"What is the closest pin-compatible alternative to the 1.5KE530-B?","answer":"The 1.5KE series uses the same DO-201 package across voltage variants, but a direct cross-reference is not documented. For a BOM replacement, consider a different Littelfuse TVS series such as 1.5SMC (surface-mount) or SMDJ, which may require a board layout change."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5KE530-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/1.5KE530-B 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}}