{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE39CA A0G","brand":"Taiwan Semiconductor Corporation","brandSlug":"taiwan-semiconductor-corporation","productSlug":"1.5KE39CA-A0G","canonicalUrl":"https://icboms.com/taiwan-semiconductor-corporation/1.5KE39CA-A0G","factsUrl":"https://icboms.com/api/mcp/products/1.5KE39CA%20A0G","rawCanonicalId":null},"summary":{"shortDescription":"Taiwan Semiconductor 1.5KE series bidirectional TVS diode, 1.5KE39CA A0G, 1500W peak pulse power, 33.3V reverse standoff, DO-201AA axial through-hole.","salesMarkdown":"## Active production — still a first-choice BOM line The 1.5KE39CA A0G: No last-time-buy clock is ticking, and no successor part has been issued. For a BOM that already has this DO-201 footprint and 33.3 V standoff, it is a stable line item — no redesign pressure from obsolescence. ## What the 1500 W rating actually buys you That is the energy it can absorb and clamp in a single surge event before the junction overheats. The clamping voltage at that peak current is 53.9 V — so a 24 V or 28 V rail protected by this part sees the transient clipped to under 54 V, well within the margin of most downstream regulators and capacitors. The reverse standoff of 33.3 V means it sits silently on the rail during normal operation, drawing negligible leakage, and only starts conducting when the line exceeds about 37 V (the minimum breakdown voltage,). ## Bidirectional — one part covers both polarities A single bidirectional channel means the same device clamps a positive transient above breakdown and a negative transient below the reverse breakdown (which is symmetric in a bidirectional Zener structure). Useful on AC-coupled signal lines, data pairs, or any rail where the fault polarity is unknown. No need to series two unidirectional parts back-to-back — one DO-201 axial part does it. ## Temperature range for real environments That covers the full industrial temperature band and reaches into the under-hood automotive zone. The 175 °C ceiling is the die's absolute limit — derate the peak pulse power above 25 °C per the datasheet curve (the 1500 W rating is at 25 °C). In a hot enclosure or near an engine block, the effective surge capability drops; budget accordingly.","metaTitle":"1.5KE39CA A0G TVS Diode, 1500W, Bidirectional, DO-201","metaDescription":"Taiwan Semiconductor 1.5KE39CA A0G bidirectional TVS diode, 1500W peak pulse power, 33.3V standoff, 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":"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","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"DO-201","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":"$0.6400","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/4eafa1ccdcae70293bc40ab8d7984f12.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5KE39CA%20A0G/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 1.5KE39CA A0G and how do I get a price?","answer":"The 1.5KE39CA A0G is an active part from Taiwan Semiconductor."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/taiwan-semiconductor-corporation/1.5KE39CA-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/1.5KE39CA-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}}