{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE150C","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5KE150C","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5KE150C","factsUrl":"https://icboms.com/api/mcp/products/1.5KE150C","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse Inc. 1.5KE series bidirectional TVS diode, 1.5KE150C, 1500W peak pulse power, 128V reverse standoff, DO-201AA axial through-hole package.","salesMarkdown":"## What the 1500W rating means for your protection design The 1.5KE150C: That 1500W rating is the dissipation capability into a standard surge — it means the device can clamp a 7.3A peak pulse current to 217.35V without failing, assuming the PCB copper and ambient temperature stay within the derating curve. Breakdown starts at 135.45V minimum, so the protection window opens before the bus exceeds the downstream semiconductor ratings. The bidirectional channel means polarity doesn't matter — clamp in both directions from a single device, which simplifies board layout for AC-coupled lines or floating supplies. ## Obsolete — sourcing through independent channels Littelfuse has marked the 1.5KE150C as Obsolete. For existing BOM lines, we source the 1.5KE150C through independent surplus and excess inventory channels. ## Package and board integration The DO-201AA (DO-27) axial leaded package is a through-hole form factor rated for the full 1500W pulse. The leads are tin-plated copper; the body is molded epoxy with a 175°C maximum junction temperature, so it handles reflow or wave solder without damage.","metaTitle":"1.5KE150C Littelfuse TVS Diode, 1500W, 128V Standoff, DO-201","metaDescription":"Littelfuse 1.5KE150C bidirectional TVS diode, 1500W peak pulse, 128V 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":"Tape & Reel (TR)","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","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"DO-201","Voltage - Breakdown (Min)":"135.45V","Voltage - Clamping (Max) @ Ipp":"217.35V","Voltage - Reverse Standoff (Typ)":"128V","Current - Peak Pulse (10/1000µs)":"7.3A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.7081","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/f1ea870152ad203d90f672f2af1c1ed0.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to the 1.5KE150C?","answer":"No official pin-compatible successor is recorded from Littelfuse. A functionally equivalent bidirectional TVS in the same 1.5KE family with a similar standoff voltage (128V) and the DO-201 package may serve as a drop-in, but the exact breakdown and clamp voltages should be verified against the BOM requirement."},{"question":"Where can I buy the 1.5KE150C?","answer":"We source the 1.5KE150C to order through independent distribution. Submit an RFQ for current availability and pricing — no stock-holding guarantee, but we can locate traceable lots from surplus inventory."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5KE150C","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/1.5KE150C 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}}