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The information presented in this cross reference is based on TOSHIBA's selection criteria and should be treated as a suggestion only. Please carefully review the latest versions of all relevant information on the TOSHIBA products, including without limitation data sheets and validate all operating parameters of the TOSHIBA products to ensure that the suggested TOSHIBA products are truly compatible with your design and application.
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齐纳二极管主要用于恒压电路和削波电路。近来,齐纳二极管被用于利用削波电路的静电放电(ESD)保护电路。
齐纳二极管是一种pn结二极管。随着pn结两端的反向偏置电压增大,齐纳二极管发生齐纳击穿或雪崩击穿。如图1所示,该击穿电压急剧上升。即使反向电流发生变化,反向电压仍几乎保持恒定。由于这种特性,齐纳二极管亦称为稳压二极管和恒压二极管。
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