{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE9.1CAHR0G","brand":"Taiwan Semiconductor Corporation","brandSlug":"taiwan-semiconductor-corporation","productSlug":"1.5KE9.1CAHR0G","canonicalUrl":"https://icboms.com/taiwan-semiconductor-corporation/1.5KE9.1CAHR0G","factsUrl":"https://icboms.com/api/mcp/products/1.5KE9.1CAHR0G","rawCanonicalId":null},"summary":{"shortDescription":"Taiwan Semiconductor Corporation 1.5KE series bidirectional TVS diode, AEC-Q101 automotive qualified, 1500W peak pulse power, 7.78V standoff, 13.4V clamp, DO-201 axial package.","salesMarkdown":"## 1.5 kW bidirectional transient suppressor, AEC-Q101 qualified The 1.5KE9.1CAHR0G: The -55 to +175 °C operating junction temperature covers the full automotive ambient range with margin for self-heating during a surge. At the 13.4 V clamp, the TVS holds the transient below the typical absolute-max rating of a 12 V bus-powered ECU — the 7.78 V standoff means the diode does not conduct under normal 12 V system ripple, only above the breakdown threshold of 8.65 V minimum. The 117 A peak pulse current (Ipp) at 10/1000 µs is the current the device can shunt into the clamp without exceeding the 1500 W power limit. For a shorter pulse (8/20 µs, common in ESD testing), the peak current capability is higher — the 10/1000 µs waveform is the more conservative automotive transient spec. ## DO-201 axial package — board-fit and thermal path The DO-201AA (DO-27) axial-lead package is a through-hole form factor with a 0.052-inch diameter leads and a body length of about 7.6 mm. The copper tab at each end carries the current; the thermal resistance to ambient depends on the lead length and the PCB copper area — shorter leads and larger pads lower the junction temperature during repetitive surges. For a single 1500 W pulse, the junction temperature rise is approximately 100 °C above ambient — within the 175 °C absolute maximum. For repetitive pulsing, the average power must stay below the 6.5 W steady-state rating at 25 °C, derated linearly above that.","metaTitle":"1.5KE9.1CAHR0G Taiwan Semiconductor TVS, 1500W","metaDescription":"Active 1.5KE9.1CAHR0G bidirectional TVS diode, AEC-Q101, 1500W peak pulse, 13.4V clamp, DO-201. Sourced to order against RFQ.","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","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,"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 this TVS in the same family?","answer":"Within the 1.5KE family, Taiwan Semiconductor offers unidirectional (1.5KE9.1A) and bidirectional (1.5KE9.1CA) variants. The HR0G suffix denotes the automotive AEC-Q101 grade and tape-and-reel packaging. Electrical characteristics (clamp voltage, standoff, peak current) are identical; the only difference is the qualification and packaging suffix."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/taiwan-semiconductor-corporation/1.5KE9.1CAHR0G","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/1.5KE9.1CAHR0G 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}}