{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE180C-B","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5KE180C-B","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5KE180C-B","factsUrl":"https://icboms.com/api/mcp/products/1.5KE180C-B","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse Inc. 1.5KE series bidirectional TVS diode, 1.5KE180C-B, 1500W peak pulse power, 154V reverse standoff, DO-201 axial, bulk.","salesMarkdown":"## 1.5 kW bidirectional transient suppressor, DO-201 axial The 1.5KE180C-B: The single bidirectional channel means the device protects against both positive and negative transients in a single package, simplifying board layout for AC or bipolar DC rails. ## Clamping voltage and pulse current — the real protection envelope For a 154 V rail, this clamping margin of roughly 104 V above the standoff means downstream components need a voltage rating above 258 V to survive a direct strike. The minimum breakdown voltage of 162 V ensures the device does not conduct at the nominal 154 V rail, but triggers before the voltage rises to damaging levels. ## Obsolete — sourcing through independent channels Littelfuse has marked the 1.5KE180C-B as obsolete. No official successor part number is recorded, so replacement requires a parametric cross-reference to a current bidirectional TVS in the same DO-201 package with matching standoff and clamping voltages. Available through independent surplus and broker channels. The DO-201 axial lead form factor is common, so a substitute from another manufacturer with the same 154 V standoff and 1500 W rating will fit the same PCB footprint.","metaTitle":"Littelfuse 1.5KE180C-B TVS Diode, 154V, DO-201","metaDescription":"Littelfuse 1.5KE180C-B bidirectional TVS diode, 1500W peak pulse power, 154V standoff, DO-201. Obsolete, sourced per RFQ.","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","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"DO-201","Voltage - Breakdown (Min)":"162V","Voltage - Clamping (Max) @ Ipp":"258.3V","Voltage - Reverse Standoff (Typ)":"154V","Current - Peak Pulse (10/1000µs)":"6.2A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/f1ea870152ad203d90f672f2af1c1ed0.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the peak pulse power rating of the 1.5KE180C-B?","answer":"1500 W (1.5 kW) for a 10/1000 µs waveform."},{"question":"What package does the 1.5KE180C-B use?","answer":"DO-201AA / DO-27 axial leaded package, also referred to as DO-201. It is a through-hole package suitable for point-to-point wiring or PCB mounting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5KE180C-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/1.5KE180C-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}}