{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE20CAHA0G","brand":"Taiwan Semiconductor Corporation","brandSlug":"taiwan-semiconductor-corporation","productSlug":"1.5KE20CAHA0G","canonicalUrl":"https://icboms.com/taiwan-semiconductor-corporation/1.5KE20CAHA0G","factsUrl":"https://icboms.com/api/mcp/products/1.5KE20CAHA0G","rawCanonicalId":null},"summary":{"shortDescription":"Taiwan Semiconductor 1.5KE series bidirectional Zener TVS diode, 1.5KE20CAHA0G, 1500W peak pulse power, 17.1V reverse standoff, DO-201AA axial through-hole, AEC-Q101 automotive qualified.","salesMarkdown":"The 1.5KE20CAHA0G: For a 12 V rail with a 36 V load-dump transient, the TVS clamps to 27.7 V — well within the 40 V abs-max of most automotive-rated buck converters. The 56 A figure is the peak current the diode can handle for the 10/1000 µs pulse shape; the actual current depends on the source impedance of the transient. The 19 V minimum breakdown voltage is the threshold where the diode starts conducting. Below 19 V the part is essentially open; above it the impedance drops sharply and the clamp engages. This 1.9 V window between standoff (17.1 V) and breakdown (19 V) gives margin for steady-state voltage ripple without the TVS leaking appreciable current. ## DO-201 axial package — board-fit and storage The DO-201AA (DO-27) axial-lead package is a through-hole form factor with a 0.052-inch lead diameter. It requires a 0.040-inch hole in the PCB and typically a 0.100-inch pad diameter for the solder fillet. The body is 9.1 mm long and 5.3 mm diameter — allow 12 mm lead-to-lead clearance for the tape-and-box reel packaging. Tape-and-box (TB) packaging means the parts are on a continuous tape but folded into a box rather than wound on a reel. Store the box in a dry environment below 30 °C and 60 % RH; the DO-201 body is not moisture-sensitive per JEDEC, so no dry-bake is needed before hand-soldering or wave-solder assembly.","metaTitle":"1.5KE20CAHA0G TVS Diode, 1.5kW, Bidirectional, DO-201","metaDescription":"Taiwan Semiconductor 1.5KE20CAHA0G bidirectional Zener TVS diode, 1500W peak pulse power, AEC-Q101 automotive grade. Active production, sourced per RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Taiwan Semiconductor Corporation","Type":"Zener","Grade":"Automotive","Series":"1.5KE","Package":"Tape & Box (TB)","Applications":"-","Mounting Type":"Through Hole","Qualification":"AEC-Q101","Package / Case":"DO-201AA, DO-27, Axial","Product Status":"Active","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5KE20","Operating Temperature":"-55°C ~ 175°C (TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"DO-201","Voltage - Breakdown (Min)":"19V","Voltage - Clamping (Max) @ Ipp":"27.7V","Voltage - Reverse Standoff (Typ)":"17.1V","Current - Peak Pulse (10/1000µs)":"56A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5369","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/a688563676897fea683fa9d5a5542f4e.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to 1.5KE20CAHA0G?","answer":"The 1.5KE20CAHA0G is a bidirectional TVS in the 1.5KE series. The unidirectional variant 1.5KE20AHA0G shares the same DO-201 package, standoff voltage, and peak pulse power rating, but clamps only one polarity. For a bidirectional replacement with identical electrical specs, the base part number 1.5KE20CA (without the automotive suffix) is functionally equivalent but lacks AEC-Q101 qualification."},{"question":"What compliance documentation does Taiwan Semiconductor provide for 1.5KE20CAHA0G?","answer":"Taiwan Semiconductor provides RoHS and REACH compliance declarations for the 1.5KE20CAHA0G. The AEC-Q101 qualification document covers the automotive stress tests. UL and IEC certification is not listed in the available documentation for this part."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/taiwan-semiconductor-corporation/1.5KE20CAHA0G","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/1.5KE20CAHA0G 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}}