{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE350A","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5KE350A","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5KE350A","factsUrl":"https://icboms.com/api/mcp/products/1.5KE350A","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse Inc. 1.5KE Series TVS Diode, Type Zener, Unidirectional, 1.5KE350A, 1500W Peak Pulse Power, 300V Reverse Standoff, 482V Clamping, DO-201AA Axial Package.","salesMarkdown":"## Active production, 1500 W surge rating The 1.5KE350A: Clamping at 482 V max under the 10/1000 µs pulse shape, it holds the protected line below the downstream device's breakdown threshold when a surge hits. ## 300 V standoff, 332 V breakdown — the protection window With a 300 V reverse standoff, the diode stays transparent on a nominal 300 VDC bus; leakage is negligible until the transient exceeds 332 V minimum breakdown. Rated for 3.2 A peak pulse current (10/1000 µs), the 1.5KE350A handles moderate-energy surges from inductive load switching or lightning-induced transients on outdoor telecom and industrial power feeds. The unidirectional channel (single diode) clamps only one polarity — use it on a positive DC rail with the cathode to the protected line; a bidirectional part is needed for AC or unknown-polarity lines. ## DO-201 axial, -55 to 175 °C range Housed in a DO-201AA (DO-27) axial-lead package, the 1.5KE350A suits through-hole board designs where hand-solder or wave-solder assembly is the norm; the body stands off the board for convective cooling. The 1.5KE series is marked as general-purpose — no AEC-Q automotive qualification is claimed, so it fits industrial and commercial applications rather than under-hood automotive.","metaTitle":"Littelfuse 1.5KE350A TVS Diode, 1500W, 300V Standoff, DO-201","metaDescription":"Littelfuse 1.5KE350A unidirectional TVS diode, 1500W peak pulse power, 300V reverse standoff, 482V clamping. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Littelfuse Inc.","Type":"Zener","Series":"1.5KE","Package":"Tape & Reel (TR) Cut Tape (CT)","Applications":"General Purpose","Mounting Type":"Through Hole","Package / Case":"DO-201AA, DO-27, Axial","Product Status":"Active","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)":"332V","Voltage - Clamping (Max) @ Ipp":"482V","Voltage - Reverse Standoff (Typ)":"300V","Current - Peak Pulse (10/1000µs)":"3.2A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.9700","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/149eca2cbf10498ecc0c7eab912fe9f4.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5KE350A","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/1.5KE350A when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}