{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE75CAHA0G","brand":"Taiwan Semiconductor Corporation","brandSlug":"taiwan-semiconductor-corporation","productSlug":"1.5KE75CAHA0G","canonicalUrl":"https://icboms.com/taiwan-semiconductor-corporation/1.5KE75CAHA0G","factsUrl":"https://icboms.com/api/mcp/products/1.5KE75CAHA0G","rawCanonicalId":null},"summary":{"shortDescription":"Taiwan Semiconductor Corporation, 1.5KE series, bidirectional TVS diode, 1.5KE75CAHA0G, 1500W peak pulse power, 64.1V reverse standoff, 103V clamping, DO-201AA axial, AEC-Q101 automotive grade.","salesMarkdown":"## Protection window for a 75 V bus The 1.5KE75CAHA0G: Its breakdown triggers at 71.3 V minimum, and the clamping voltage peaks at 103 V when the 10/1000 µs surge current reaches 15 A. For a 75 V nominal DC bus — common in automotive 48 V systems after a boost stage, or in industrial 72 V battery banks — the 64.1 V standoff holds the leakage below the rail during normal operation, while the 103 V clamp keeps the voltage spike within the safe operating area of downstream FETs and ICs rated for 120 V or higher. The 1500 W peak pulse rating (1.5 kW into a 10/1000 µs waveform) means this single device absorbs the energy of a typical load-dump or inductive kick without needing a parallel suppressor — a clean one-device-per-bus solution. Qualified to AEC-Q101, the automotive stress-test standard for discrete semiconductors. This covers the temperature cycling, high-temperature reverse bias, and ESD robustness required for under-hood and chassis-mounted electronics — an engine ECU, transmission controller, or battery-management sensor interface sees this grade of transient protection. At 175°C junction, the leakage current rises but the clamping voltage stays within the datasheet limit — the 103 V clamp is specified at the peak pulse condition. No power-line protection (the device is a standalone transient suppressor, not a filtered TVS array) — it clamps the differential surge across the two leads, not a common-mode or RF-filtered event. The bidirectional channel handles symmetrical clamping for AC-coupled or floating bus lines. ## Package and board integration Supplied in the DO-201AA (DO-27) axial-lead package, through-hole mounted. The 0.052-inch lead diameter and 0.375-inch body length fit standard 1.0 mm diameter plated-through holes on a 2.54 mm pitch grid. The axial leads allow vertical or horizontal mounting — useful for dense PCB layouts where a surface-mount SOD-123 or SMB would consume board area. The Tape & Box (TB) packaging option suits pick-and-place for through-hole insertion equipment, though the axial format typically requires a radial-tape conversion or manual insertion. For high-volume automotive lines, the TB format keeps the leads aligned for automated clinching. The base product number 1.5KE75 identifies the voltage family; the CAHA0G suffix encodes the bidirectional channel (CA), the AEC-Q101 automotive grade (H), and the packaging code. A unidirectional variant (1.5KE75AHA0G) exists for DC-only bus protection where reverse polarity is not a concern.","metaTitle":"1.5KE75CAHA0G TVS Diode, 1500W, 103V Clamp, DO-201","metaDescription":"Taiwan Semiconductor 1.5KE75CAHA0G bidirectional TVS, 1500W peak pulse, 64.1V standoff, 103V clamp. AEC-Q101 automotive grade.","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":"1.5KE75","Operating Temperature":"-55°C ~ 175°C (TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"DO-201","Voltage - Breakdown (Min)":"71.3V","Voltage - Clamping (Max) @ Ipp":"103V","Voltage - Reverse Standoff (Typ)":"64.1V","Current - Peak Pulse (10/1000µs)":"15A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5792","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/a688563676897fea683fa9d5a5542f4e.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What compliance documentation does Taiwan Semiconductor provide for the 1.5KE75CAHA0G?","answer":"The part carries AEC-Q101 qualification documentation, including the stress-test report and the PPAP (Production Part Approval Process) package typical for automotive-grade discretes. RoHS and REACH compliance is standard for the 1.5KE series. No UL or IEC certification is listed on this specific variant."},{"question":"What is the difference between the 1.5KE75CAHA0G and the unidirectional 1.5KE75AHA0G?","answer":"The CAHA0G suffix indicates a bidirectional TVS — it clamps equally in both polarities, suitable for AC-coupled lines or floating DC buses where reverse voltage can appear. The AHA0G variant (without the C) is unidirectional, clamping only in one direction and acting as a Zener clamp on positive transients. For a 75 V bus that sees reverse polarity, the bidirectional version avoids adding a series diode."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/taiwan-semiconductor-corporation/1.5KE75CAHA0G","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/1.5KE75CAHA0G 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}}