{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE300CA/B","brand":"YAGEO","brandSlug":"yageo","productSlug":"1.5KE300CA-B","canonicalUrl":"https://icboms.com/yageo/1.5KE300CA-B","factsUrl":"https://icboms.com/api/mcp/products/1.5KE300CA%2FB","rawCanonicalId":null},"summary":{"shortDescription":"YAGEO 1.5KE series bidirectional TVS Zener diode, 1500W peak pulse power, 256V reverse standoff, 414V clamping, DO-201AA axial through-hole package.","salesMarkdown":"## What the 1.5KE300CA/B protects and how to read its ratings The 256 V reverse standoff voltage means the device does not conduct leakage current below that rail — it sits across a 240 VAC or 256 VDC bus and stays invisible until a transient exceeds the 285 V minimum breakdown threshold. When the transient hits, the diode clamps at 414 V maximum while shunting 3.7 A peak pulse current. That 414 V ceiling is the voltage the downstream circuitry must survive — if your DC bus capacitors or downstream regulators are rated below that, the TVS may not save them. The bidirectional configuration means a single DO-201 part clamps both polarities — handy for AC lines or floating DC rails where the transient polarity is unknown. No power line protection built in (the 'Power Line Protection' flag is No), so this is for signal or low-power DC bus protection, not mains AC primary-side clamping. ## Package and board-fit — through-hole DO-201 axial Housed in a DO-201AA (DO-27) axial leaded package, the 1.5KE300CA/B mounts through-hole. The axial leads require a hole pitch matching the body length — typically 8.5 mm lead spacing on the PCB. The DO-201 body diameter is about 5.3 mm; plan for clearance to adjacent components if you are retrofitting onto a tight board. The junction temperature rating is the one that governs derating: at 150°C ambient the peak pulse power must be derated per the manufacturer's curve, but for most board-level repairs at room temperature you get the full 1500 W. ## Sourcing and lifecycle — active, no end-of-life concern No stock-holding claim; the part is procured through independent distribution channels with full traceability.","metaTitle":"YAGEO 1.5KE300CA/B TVS Diode, 1500W, 256V Standoff, DO-201","metaDescription":"YAGEO 1.5KE300CA/B bidirectional TVS, 1500W peak pulse, 256V reverse standoff, 414V clamping. Active production. Order via RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"YAGEO","Type":"Zener","Series":"1.5KE","Package":"Box","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)","Operating Temperature":"-55°C~150°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"DO-201","Voltage - Breakdown (Min)":"285V","Voltage - Clamping (Max) @ Ipp":"414V","Voltage - Reverse Standoff (Typ)":"256V","Current - Peak Pulse (10/1000µs)":"3.7A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.1330","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/4b2937e75354924aacfedfdea02966d9.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to the 1.5KE300CA/B?","answer":"The 1.5KE series includes other bidirectional TVS diodes at different standoff voltages (e.g., 1.5KE250CA, 1.5KE350CA) that share the same DO-201 package and 1500 W rating — but the standoff and clamping voltages differ. For a direct replacement, stick with the 1.5KE300CA/B order code."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/yageo/1.5KE300CA-B","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/yageo/1.5KE300CA-B 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}}