{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE39A A0G","brand":"Taiwan Semiconductor Corporation","brandSlug":"taiwan-semiconductor-corporation","productSlug":"1.5KE39A-A0G","canonicalUrl":"https://icboms.com/taiwan-semiconductor-corporation/1.5KE39A-A0G","factsUrl":"https://icboms.com/api/mcp/products/1.5KE39A%20A0G","rawCanonicalId":null},"summary":{"shortDescription":"Taiwan Semiconductor 1.5KE39A A0G Zener TVS diode, 1.5KE series, 1500W peak pulse power, 33.3V reverse standoff, 53.9V clamping, unidirectional, DO-201 axial, through hole.","salesMarkdown":"## 1500 W surge clamp for a 33.3 V rail The 1.5KE39A A0G: With a 33.3 V reverse standoff voltage, it protects a 24 V or 28 V DC bus from transients without conducting at the nominal rail. Breakdown occurs at 37.1 V minimum, and the diode clamps at 53.9 V maximum while shunting 29 A of peak pulse current. This window keeps the protected circuit below its absolute-maximum rating during a surge event. ## DO-201 axial — board-level transient protection Operating from -55 °C to 175 °C, the diode suits both industrial control cabinets and under-hood automotive environments where ambient temperatures can reach 125 °C. The wide junction range means derating is minimal until the case temperature exceeds 100 °C. No power line protection — the diode is intended for DC bus or signal-line clamping, not AC mains surge suppression. Confirm the 33.3 V standoff matches your rail voltage before committing the BOM line.","metaTitle":"1.5KE39A A0G TVS Diode, 1500W, 33.3V Standoff, DO-201","metaDescription":"Taiwan Semiconductor 1.5KE39A A0G Zener TVS, 1500W peak pulse, 33.3V reverse standoff, 53.9V clamp. Active production, DO-201 axial. Request a quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Taiwan Semiconductor Corporation","Type":"Zener","Series":"1.5KE","Package":"Tape & Box (TB)","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":"1.5KE39","Operating Temperature":"-55°C ~ 175°C (TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"DO-201","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"37.1V","Voltage - Clamping (Max) @ Ipp":"53.9V","Voltage - Reverse Standoff (Typ)":"33.3V","Current - Peak Pulse (10/1000µs)":"29A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/a688563676897fea683fa9d5a5542f4e.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5KE39A%20A0G/alternatives.json"},"ai":{"faq":[{"question":"What is the peak pulse power rating of the 1.5KE39A A0G?","answer":"The 1.5KE39A A0G is rated for 1500 W (1.5 kW) peak pulse power on a 10/1000 µs exponential waveform. This means it can clamp a 29 A surge at 53.9 V for that pulse duration without exceeding the junction temperature limit."},{"question":"What voltage rail does the 1.5KE39A A0G protect?","answer":"With a 33.3 V reverse standoff voltage, the diode is designed to protect a 24 V or 28 V DC bus. It does not conduct at the nominal rail voltage, starts breaking down at 37.1 V, and clamps transients at 53.9 V maximum."},{"question":"What package does the 1.5KE39A A0G come in?","answer":"The diode is supplied in a DO-201AA (DO-27) axial-lead through-hole package. The supplier device package is DO-201. It ships in Tape & Box (TB) format."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/taiwan-semiconductor-corporation/1.5KE39A-A0G","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/taiwan-semiconductor-corporation/1.5KE39A-A0G 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}}