{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE68-B","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5KE68-B","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5KE68-B","factsUrl":"https://icboms.com/api/mcp/products/1.5KE68-B","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse 1.5KE68-B Zener TVS diode, 1.5KE series, 1500W peak pulse power, 58.1V reverse standoff, 96.6V clamping, DO-201AA axial leaded, bulk.","salesMarkdown":"The 1.5KE68-B: The 58.1V standoff means the diode does not conduct at normal operating voltages up to that level; it only begins to avalanche when the transient exceeds the minimum breakdown voltage of 61.2V. Littelfuse lists the 1.5KE68-B as obsolete. A board-spin replacement may require re-qualifying the clamp voltage and package footprint — the DO-201 axial leaded form factor is common, but the electrical window (58.1V standoff, 96.6V clamp) is specific to this variant. ## Temperature range and deployment context The wide thermal margin means the diode's leakage and breakdown voltage shift within spec across the full temperature sweep — relevant for a circuit that must clamp reliably at cold start or under-hood soak. General-purpose application classification means it is not qualified to a specific automotive or aerospace standard — the temperature range is broad, but the part lacks AEC-Q101 or MIL-PRF-19500 screening. For hi-rel programs, a screened JAN or equivalent variant from the same family would be the correct call.","metaTitle":"Littelfuse 1.5KE68-B TVS Diode, 1500W, 58.1V Standoff","metaDescription":"Obsolete Littelfuse 1.5KE68-B Zener TVS diode, 1500W peak pulse, 58.1V standoff, DO-201 package. Sourced to order against RFQ through independent distribution.","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)":"61.2V","Voltage - Clamping (Max) @ Ipp":"96.6V","Voltage - Reverse Standoff (Typ)":"58.1V","Current - Peak Pulse (10/1000µs)":"16.5A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/149eca2cbf10498ecc0c7eab912fe9f4.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy the 1.5KE68-B and what is the lead time?","answer":"The 1.5KE68-B is obsolete and sourced through independent distribution."},{"question":"What is the closest pin-compatible alternative to 1.5KE68-B?","answer":"Any replacement must match the DO-201 axial package and the 58.1V standoff / 96.6V clamp window — confirm the breakdown voltage tolerance and peak pulse power rating against the BOM requirement before substituting."},{"question":"What compliance documentation does Littelfuse provide for 1.5KE68-B?","answer":"The evidence does not list RoHS, REACH, UL, or IEC compliance documentation for this specific order code. Verify compliance requirements with the supplier at the time of RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5KE68-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/1.5KE68-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}}