{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE350","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5KE350","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5KE350","factsUrl":"https://icboms.com/api/mcp/products/1.5KE350","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse 1.5KE series Zener TVS diode, 1.5KE350, 1500W peak pulse power, 300V reverse standoff, 506.1V clamping, DO-201AA axial lead, unidirectional.","salesMarkdown":"## Obsolete — last-time-buy sourcing The 1.5KE350 is listed as Obsolete by Littelfuse, meaning the manufacturer has discontinued production with no scheduled last-time-buy window remaining. Available through independent surplus and broker channels. ## 1500W peak pulse — what the rating means The device absorbs a single 3.2 A pulse (Ipp) at the clamping voltage of 506.1 V without failing. The 300 V reverse standoff voltage (working voltage) means the diode draws negligible leakage below that rail — it sits across a 300 VDC bus and stays invisible until a transient exceeds the 315 V minimum breakdown threshold. ## DO-201 axial — board-fit note Through-hole DO-201AA (DO-27) axial lead package. The body is rated for continuous junction temperatures from -55°C to 175°C, covering industrial and automotive under-hood thermal environments. Unidirectional — one channel per device. The cathode band marks the anode-to-ground orientation; reverse the leads and the diode clamps the negative transient instead.","metaTitle":"1.5KE350 Littelfuse TVS Diode, 300V Standoff, DO-201","metaDescription":"Obsolete Littelfuse 1.5KE350 Zener TVS diode. 1500W peak pulse power, 300V reverse standoff, 506.1V clamping. Sourced to order against 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":"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","Capacitance @ Frequency":"-","Supplier Device Package":"DO-201","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"315V","Voltage - Clamping (Max) @ Ipp":"506.1V","Voltage - Reverse Standoff (Typ)":"300V","Current - Peak Pulse (10/1000µs)":"3.2A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.8900","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/f1ea870152ad203d90f672f2af1c1ed0.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5KE350","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/1.5KE350 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}}