{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE51CA/B","brand":"YAGEO","brandSlug":"yageo","productSlug":"1.5KE51CA-B","canonicalUrl":"https://icboms.com/yageo/1.5KE51CA-B","factsUrl":"https://icboms.com/api/mcp/products/1.5KE51CA%2FB","rawCanonicalId":null},"summary":{"shortDescription":"YAGEO 1.5KE series Zener TVS diode, bidirectional, 1500W peak pulse power, 43.6V reverse standoff, 70.1V clamp, DO-201AA axial-lead package, through-hole mount.","salesMarkdown":"The 1.5KE51CA/B: Its 70.1 V clamping voltage at 21.7 A peak pulse current (10/1000 µs waveform) defines the voltage the protected circuitry must survive — a 48.5 V minimum breakdown threshold means it starts conducting just above the working voltage, leaving a ~5 V guard band before full clamp. Rated -55°C to 150°C junction temperature, it handles the thermal cycling of outdoor or under-hood environments without derating at the extremes. Housed in the DO-201AA (DO-27) axial-lead package, the 1.5KE51CA/B requires a 1.1 mm diameter hole on a 0.100-inch pitch lead spacing. The through-hole body dissipates surge energy into the PCB copper and surrounding air — no thermal pad or heatsink is needed for the 1500 W peak rating, but the trace width between the TVS and the protected node should carry the 21.7 A pulse without fusing. The DO-201 footprint is standard across the 1.5KE family, so a single board layout accepts any voltage variant from 6.8 V to 440 V. No power line protection (per the spec) means this device is intended for secondary-side DC rails or signal lines, not AC mains — the clamping voltage is too tight for the let-through energy of a mains transient.","metaTitle":"YAGEO 1.5KE51CA/B TVS Diode, 1500W, Bidirectional, DO-201","metaDescription":"YAGEO 1.5KE51CA/B bidirectional Zener TVS, 1500W peak pulse power, 43.6V standoff, 70.1V clamp, DO-201 axial. Active production, sourced to order.","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)","Base Product Number":"1.5KE51","Operating Temperature":"-55°C ~ 150°C (TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"DO-201","Voltage - Breakdown (Min)":"48.5V","Voltage - Clamping (Max) @ Ipp":"70.1V","Voltage - Reverse Standoff (Typ)":"43.6V","Current - Peak Pulse (10/1000µs)":"21.7A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.1226","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/7e7401a50e18f12b75b7097fbc4378a1.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/yageo/1.5KE51CA-B","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/yageo/1.5KE51CA-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}}