{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE9.1CAHA0G","brand":"Taiwan Semiconductor Corporation","brandSlug":"taiwan-semiconductor-corporation","productSlug":"1.5KE9.1CAHA0G","canonicalUrl":"https://icboms.com/taiwan-semiconductor-corporation/1.5KE9.1CAHA0G","factsUrl":"https://icboms.com/api/mcp/products/1.5KE9.1CAHA0G","rawCanonicalId":null},"summary":{"shortDescription":"Taiwan Semiconductor 1.5KE series, automotive bidirectional TVS diode, 1.5KE9.1CAHA0G, 1500W peak pulse power, 7.78V standoff, DO-201AA axial package, AEC-Q101 qualified.","salesMarkdown":"## Clamping window and pulse handling for a 7.78V rail The 1.5KE9.1CAHA0G: With a 7.78V reverse standoff voltage, this part sits on a nominal 12V battery line without conducting during normal operation. Breakdown starts at 8.65V minimum, and the clamping voltage is held to 13.4V at the 117A peak pulse current (10/1000µs waveform). ## Bidirectional channel and package fit The single bidirectional channel handles both positive and negative transients, which simplifies layout for AC-coupled lines or power rails that see reverse-polarity events. The DO-201AA (DO-27) axial package with through-hole mounting is a standard footprint — the leads are rated for the full 117A pulse without fusing, and the body diameter fits a 1.0mm drill hole on a 2.54mm grid.","metaTitle":"1.5KE9.1CAHA0G TVS Diode, 1500W, Bidirectional, DO-201","metaDescription":"Taiwan Semiconductor 1.5KE9.1CAHA0G automotive-grade bidirectional TVS diode, 1500W peak pulse power, 7.78V standoff, DO-201 axial package.","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":"1.5KE9.1","Operating Temperature":"-55°C ~ 175°C (TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"DO-201","Voltage - Breakdown (Min)":"8.65V","Voltage - Clamping (Max) @ Ipp":"13.4V","Voltage - Reverse Standoff (Typ)":"7.78V","Current - Peak Pulse (10/1000µs)":"117A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/72574fc6a2457eafc9ae6cf3aa2992be.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5KE9.1CAHA0G/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/taiwan-semiconductor-corporation/1.5KE9.1CAHA0G","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/1.5KE9.1CAHA0G 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}}