{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE9.1CHE3/73","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE9.1CHE3-73","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE9.1CHE3-73","factsUrl":"https://icboms.com/api/mcp/products/1.5KE9.1CHE3%2F73","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division, Automotive AEC-Q101 TransZorb® series, bidirectional TVS Zener, 1.5KE9.1CHE3/73, 1500W peak pulse, 7.37V standoff, DO-201AA axial through-hole.","salesMarkdown":"## Obsolete — last-time-buy sourcing Vishay lists the 1.5KE9.1CHE3/73 as Obsolete. ## Protection window and pulse rating A bidirectional Zener TVS, the 1.5KE9.1CHE3/73 clamps at 13.8 V max (at 109 A peak pulse current, 10/1000 µs waveform) and has a reverse standoff of 7.37 V. The breakdown voltage range starts at 8.19 V min. The 109 A peak pulse current figure is the corresponding current at the clamping voltage for the standard 10/1000 µs waveform. ## Automotive grade and temperature envelope AEC-Q101 qualified — the automotive discrete semiconductor reliability stress suite. This covers temperature cycling, high-temperature reverse bias, and ESD robustness per the AEC-Q101 test plan. Operating junction temperature range is -55°C to 175°C — the full automotive under-hood band. The 175°C upper limit allows placement near exhaust-adjacent or turbocharger-adjacent electronics without derating the junction temperature. Packaged in the DO-201AA (DO-27) axial leaded through-hole format. The 1.5KE package suffix is the Vishay standard for this power level.","metaTitle":"1.5KE9.1CHE3/73 Vishay TVS, 1500W, 7.37V, DO-201AA","metaDescription":"Obsolete Vishay 1.5KE9.1CHE3/73 bidirectional TVS, 1500W peak pulse, 7.37V standoff, AEC-Q101. Sourced to order against RFQ through independent distribution.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Vishay General Semiconductor - Diodes Division","Type":"Zener","Series":"Automotive, AEC-Q101, TransZorb®","Package":"Tape & Box (TB)","Applications":"Automotive","Mounting Type":"Through Hole","Package / Case":"DO-201AA, DO-27, Axial","Product Status":"Obsolete","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":"1.5KE","Voltage - Breakdown (Min)":"8.19V","Voltage - Clamping (Max) @ Ipp":"13.8V","Voltage - Reverse Standoff (Typ)":"7.37V","Current - Peak Pulse (10/1000µs)":"109A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cbd949ebcf4c95d5b4ea8fdecf87536f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the 1.5KE9.1CHE3/73 used for?","answer":"The 1500 W peak pulse rating handles moderate surge events typical in 12 V vehicle electrical systems."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE9.1CHE3-73","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE9.1CHE3-73 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T14:34:45.345Z","lastPublished":"2026-07-20T14:34:45.345Z","indexable":true}}