{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE91AHA0G","brand":"Taiwan Semiconductor Corporation","brandSlug":"taiwan-semiconductor-corporation","productSlug":"1.5KE91AHA0G","canonicalUrl":"https://icboms.com/taiwan-semiconductor-corporation/1.5KE91AHA0G","factsUrl":"https://icboms.com/api/mcp/products/1.5KE91AHA0G","rawCanonicalId":null},"summary":{"shortDescription":"Taiwan Semiconductor Corporation 1.5KE series Zener TVS diode, Automotive grade, 1500W peak pulse power, 77.8V standoff, DO-201AA axial package, Tape & Box.","salesMarkdown":"## 1500W peak pulse — what that 12.6 A rating actually means The 1.5KE91AHA0G: That 12.6 A figure is the peak pulse current the part can handle once — it is not a continuous rating, but the surge capacity that protects downstream silicon from a lightning-induced transient or an inductive load dump. The 77.8 V reverse standoff voltage means this TVS starts conducting only when the line exceeds that threshold, so it sits across a 72 V or 75 V rail without leaking appreciably in normal operation. Breakdown is guaranteed between 86.5 V and the clamping voltage, giving a defined protection window. Qualified to AEC-Q101, the automotive-grade reliability standard for discrete semiconductors — this means the part has passed the full suite of temperature cycling, high-temperature reverse bias, and ESD characterization that automotive OEMs require for under-hood and chassis-mounted electronics. The junction temperature range spans -55°C to 175°C, covering the full automotive temperature grade with margin for self-heating during a pulse event. At the cold end, the breakdown voltage shifts slightly higher per the Zener TC, but the clamping voltage remains within the protection window for the rail.","metaTitle":"1.5KE91AHA0G TVS Diode, 1500W, DO-201, AEC-Q101","metaDescription":"Taiwan Semiconductor 1.5KE91AHA0G Zener TVS, 1500W peak pulse, 77.8V standoff, DO-201 axial. AEC-Q101 automotive grade. Active production, 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","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":"1.5KE91","Operating Temperature":"-55°C ~ 175°C (TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"DO-201","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"86.5V","Voltage - Clamping (Max) @ Ipp":"125V","Voltage - Reverse Standoff (Typ)":"77.8V","Current - Peak Pulse (10/1000µs)":"12.6A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4993","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/1.5KE91AHA0G","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/1.5KE91AHA0G 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}}