{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE56CAHA0G","brand":"Taiwan Semiconductor Corporation","brandSlug":"taiwan-semiconductor-corporation","productSlug":"1.5KE56CAHA0G","canonicalUrl":"https://icboms.com/taiwan-semiconductor-corporation/1.5KE56CAHA0G","factsUrl":"https://icboms.com/api/mcp/products/1.5KE56CAHA0G","rawCanonicalId":null},"summary":{"shortDescription":"Taiwan Semiconductor Corporation 1.5KE series automotive TVS, bidirectional Zener, 1500W peak pulse power, 47.8V standoff voltage, 77V clamping, DO-201AA axial through-hole, AEC-Q101 qualified.","salesMarkdown":"## Automotive-grade transient suppressor for 48V nominal rails The 1.5KE56CAHA0G: Its 47.8V reverse standoff voltage and 77V clamping point make it a fit for protecting 48V nominal DC buses in automotive electronics — the standoff sits above the rail's steady-state maximum, while the clamp catches load-dump and inductive kick transients before they reach downstream silicon. ## What the clamping and breakdown specs mean for a 48V bus The 47.8V reverse standoff voltage is the maximum DC voltage the TVS can hold without conducting — it sits above the 48V nominal rail's tolerance band (typically 52-54V max for a regulated bus). The minimum breakdown voltage of 53.2V gives a guard band above the standoff, ensuring the device stays off during normal operation. When a transient exceeds breakdown, the clamping voltage of 77V at the 20A peak pulse current limits the voltage seen by the protected circuit. Bidirectional construction means the device clamps equally in both polarities — useful for AC-coupled lines or DC buses where reverse-polarity events are a risk. A single device replaces two unidirectional TVS diodes in anti-series, saving board space and bill-of-materials count. ## Package and board integration The DO-201AA (DO-27) axial-lead through-hole package is a standard form factor for high-reliability power-supply and automotive PCB layouts. The axial body allows manual or wave-solder assembly; the lead diameter and body length are compatible with existing 1.5KE-series footprints. Tape & Box packaging supports automated insertion for volume production.","metaTitle":"1.5KE56CAHA0G TVS Diode, 1500W, 47.8V Standoff, AEC-Q101","metaDescription":"Taiwan Semiconductor 1.5KE56CAHA0G bidirectional Zener TVS, 1500W peak pulse, 47.8V standoff, 77V clamping, 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":"1.5KE56","Operating Temperature":"-55°C ~ 175°C (TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"DO-201","Voltage - Breakdown (Min)":"53.2V","Voltage - Clamping (Max) @ Ipp":"77V","Voltage - Reverse Standoff (Typ)":"47.8V","Current - Peak Pulse (10/1000µs)":"20A"}},"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 is the 1.5KE56CAHA0G's type and grade?","answer":"It is a Zener-type bidirectional TVS diode with Automotive grade, qualified to AEC-Q101. This means it meets the reliability and temperature requirements for automotive electronics applications."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/taiwan-semiconductor-corporation/1.5KE56CAHA0G","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/1.5KE56CAHA0G 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}}