{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE15-B","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5KE15-B","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5KE15-B","factsUrl":"https://icboms.com/api/mcp/products/1.5KE15-B","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse 1.5KE series Zener TVS diode, 1.5KE15-B, 1500W peak pulse power, 12.8V reverse standoff, 22.26V clamping, DO-201AA/DO-27 axial, through-hole, bulk.","salesMarkdown":"## 1500W surge clamp for 12.8V rails The 1.5KE15-B: It clamps transients on a 12.8V reverse standoff rail — the steady-state voltage it sits across without conducting — and breaks down at a minimum of 13.55V to begin shunting surge current. With a clamping voltage of 22.26V at 71.7A peak pulse current, it holds the protected node below the typical 30V abs-max of downstream 12V logic and linear regulators. The 71.7A figure is the peak current the device can pass once in avalanche — not a continuous rating. ## Through-hole DO-201 axial footprint Housed in the DO-201AA / DO-27 axial leaded package, the 1.5KE15-B mounts through-hole. The DO-201 body is the standard footprint for 1500W TVS diodes — the lead spacing and hole diameter match the common PCB layout used across the 1.5KE family. The bulk packaging means parts ship loose in a bag or tube, not taped and reeled — factor manual or tube-fed placement if the line runs automated insertion. ## Obsolete — sourced through surplus Available through independent surplus and broker channels. Quantities are lot-specific; the exact date code and manufacturer traceability are confirmed at RFQ. ## Signal-line protection, not mains The 1.5KE15-B is rated for general-purpose transient suppression. Power line protection is explicitly not supported — this device is intended for signal, data, or low-voltage DC bus clamping where the standoff voltage matches the rail.","metaTitle":"1.5KE15-B Littelfuse TVS Diode, 1500W, 12.8V Standoff","metaDescription":"Littelfuse 1.5KE15-B Zener TVS diode, 1500W peak pulse power, 12.8V reverse standoff, DO-201 axial. Obsolete — sourced to order. Request a quote.","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)":"13.55V","Voltage - Clamping (Max) @ Ipp":"22.26V","Voltage - Reverse Standoff (Typ)":"12.8V","Current - Peak Pulse (10/1000µs)":"71.7A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6600","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/149eca2cbf10498ecc0c7eab912fe9f4.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What package does 1.5KE15-B come in?","answer":"It is supplied in a DO-201AA / DO-27 axial leaded through-hole package. The supplier device package is DO-201. Parts ship in bulk."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5KE15-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/1.5KE15-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}}