{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE320CA","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5KE320CA","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5KE320CA","factsUrl":"https://icboms.com/api/mcp/products/1.5KE320CA","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse Inc. 1.5KE series TVS diode, bidirectional, 1500W peak pulse power, 273V reverse standoff, 441V clamping, DO-201AA axial package, tape and reel.","salesMarkdown":"## Surge rating and protection window The 1.5KE320CA is a 1500W bidirectional TVS diode from the Littelfuse 1.5KE series, designed to clamp transients on AC power lines or bipolar signal rails. Its 273V reverse standoff voltage lets it sit across a 240VAC line without conducting during normal operation; the 304V minimum breakdown triggers clamping, and the 441V clamping voltage at 3.5A (10/1000 µs pulse) limits the let-through energy into the downstream circuit. The bidirectional single-channel construction means the same device clamps positive and negative transients equally — no polarity marking needed during assembly, which reduces placement errors on high-density boards. ## Thermal and mechanical fit The DO-201AA axial-lead package (DO-27 equivalent) is a through-hole footprint that suits point-to-point wiring or PCB mounting with standard 0.100-inch lead spacing. Tape and reel packaging supports automated insertion for volume builds. For shorter pulses (8/20 µs, common in ESD testing), the peak power capability is higher; the datasheet's pulse-derating curve gives the multiplier for non-standard pulse widths. The DO-201 package and bidirectional polarity make this a drop-in fit for existing layouts using the 1.5KE footprint.","metaTitle":"Littelfuse 1.5KE320CA TVS Diode, 1500W Bidirectional, DO-201","metaDescription":"Littelfuse 1.5KE320CA bidirectional TVS diode, 1500W peak pulse power, 273V standoff, 441V 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)","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","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"DO-201","Voltage - Breakdown (Min)":"304V","Voltage - Clamping (Max) @ Ipp":"441V","Voltage - Reverse Standoff (Typ)":"273V","Current - Peak Pulse (10/1000µs)":"3.5A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.5279","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/149eca2cbf10498ecc0c7eab912fe9f4.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What package does the 1.5KE320CA come in?","answer":"It is supplied in a DO-201AA (DO-27) axial-lead through-hole package, available in tape and reel format for automated assembly."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5KE320CA","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/1.5KE320CA 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}}