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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.
Please note that this cross reference is based on TOSHIBA's estimate of compatibility with other manufacturers' products, based on other manufacturers' published data, at the time the data was collected.
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ESD保护二极管是一种齐纳二极管。
当二极管反向偏置时,有很少的电流从阴极流向阳极。然而,当反向偏压超过某一点(称为反向击穿电压)时,反向电流突然增加。随着反向偏压增加,无论二极管流过的电流大小,二极管都会形成恒定电压区域。利用齐纳二极管击穿电压(齐纳电压)特性可以构成恒压稳压器,抑制浪涌电压。齐纳稳压二极管用于保持恒定电压,而ESD保护二极管用于吸收ESD能量,保护电路。