{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE18CHE3/73","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5KE18CHE3-73","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE18CHE3-73","factsUrl":"https://icboms.com/api/mcp/products/1.5KE18CHE3%2F73","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor, TransZorb® Automotive series, TVS Zener diode, 1.5KE18CHE3/73, 1500W peak pulse power, 14.5V reverse standoff, 26.5V clamping, DO-201AA axial, AEC-Q101 qualified.","salesMarkdown":"## Automotive-grade TransZorb TVS — 1500 W peak pulse, DO-201AA axial The Vishay 1.5KE18CHE3/73 is a 1500 W (1.5 kW) peak pulse power TransZorb TVS diode in the DO-201AA axial-lead package, part of the Automotive, AEC-Q101 qualified series. It provides unidirectional transient voltage suppression for 14.5 V nominal rails, clamping transients at 26.5 V maximum. The 1500 W rating at the device level means the clamping circuit absorbs the surge without the TVS itself failing short. ## Breakdown and clamping — 16.2 V min breakdown, 26.5 V clamp ceiling Minimum breakdown voltage is 16.2 V, with a reverse standoff (working voltage) of 14.5 V. A single bidirectional channel handles transients in both polarities, simplifying the BOM for AC-coupled or floating signal lines. Vishay has marked the 1.5KE18CHE3/73 as obsolete. The AEC-Q101 qualification and TransZorb construction remain the key trust signals for automotive applications where a 14.5 V working rail needs a known clamping ceiling. The DO-201AA axial package is through-hole, so a board respin is required to migrate to a surface-mount alternative.","metaTitle":"Vishay 1.5KE18CHE3/73 TVS Diode, 1500W, 14.5V Standoff","metaDescription":"Obsolete Vishay 1.5KE18CHE3/73 TransZorb TVS diode, 1500W peak pulse, 14.5V reverse standoff, AEC-Q101 automotive, DO-201AA axial. Sourced to order against RFQ.","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":"1.5KE18","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"1.5KE","Voltage - Breakdown (Min)":"16.2V","Voltage - Clamping (Max) @ Ipp":"26.5V","Voltage - Reverse Standoff (Typ)":"14.5V","Current - Peak Pulse (10/1000µs)":"56.6A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cbd949ebcf4c95d5b4ea8fdecf87536f.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5KE18CHE3-73","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/1.5KE18CHE3-73 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}}