{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE43CAH","brand":"Taiwan Semiconductor Corporation","brandSlug":"taiwan-semiconductor-corporation","productSlug":"1.5KE43CAH","canonicalUrl":"https://icboms.com/taiwan-semiconductor-corporation/1.5KE43CAH","factsUrl":"https://icboms.com/api/mcp/products/1.5KE43CAH","rawCanonicalId":null},"summary":{"shortDescription":"Taiwan Semiconductor 1.5KE43CAH, Automotive AEC-Q101 Zener TVS Diode, 1500W Peak Pulse, 36.8V Standoff, 59.3V Clamp, 26A Ipp, DO-201AA Axial, Tape & Reel.","salesMarkdown":"## What this 1500W Zener TVS protects The 1.5KE43CAH: It clamps a 26A surge to 59.3V maximum, with a 36.8V reverse standoff voltage that keeps the protected rail clear during normal operation. ## Clamping voltage and breakdown margin The minimum breakdown voltage is 40.9V, so a 36.8V nominal rail sees a 4.1V margin before the TVS starts conducting leakage current. The clamping voltage of 59.3V at the rated 26A peak pulse current tells you the worst-case voltage the downstream silicon sees during a surge event — a 48V bus or a 24V system with a 36.8V TVS has headroom for load-dump transients without exceeding the clamp ceiling. ## Package and board integration Housed in a DO-201AA (DO-27) axial-lead package, the 1.5KE43CAH mounts through-hole — the lead bend and body length are standard for 1.5KE-series TVS diodes, so existing PCB footprints for this class accept it without layout changes. The axial body sits above the board, which helps with convective cooling during repetitive surge events.","metaTitle":"1.5KE43CAH TVS Diode, 1500W, 36.8V Standoff, DO-201","metaDescription":"Taiwan Semiconductor 1.5KE43CAH bidirectional Zener TVS, 1500W peak pulse, 36.8V standoff, 59.3V clamp. AEC-Q101 qualified, -55 to 175°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Taiwan Semiconductor Corporation","Type":"Zener","Series":"Automotive, AEC-Q101, 1.5KE","Package":"Tape & Reel (TR)","Applications":"Automotive","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":"1.5KE43","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"DO-201","Voltage - Breakdown (Min)":"40.9V","Voltage - Clamping (Max) @ Ipp":"59.3V","Voltage - Reverse Standoff (Typ)":"36.8V","Current - Peak Pulse (10/1000µs)":"26A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5792","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/a688563676897fea683fa9d5a5542f4e.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/taiwan-semiconductor-corporation/1.5KE43CAH","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/1.5KE43CAH 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}}