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13 December 2022如何区别各类型TVS保护器件 瞬态电压抑制器（Transient Voltage Suppressor）简称TVS，是一种二极管形态的高效能保护器件。TVS用来保护后段的IC免受由ESD或EOS波动引起意外的过电压和过电流影响。其工作原理如图1所示；首先TVS的二极管反向击穿的特性，当TVS两极受到瞬态高能量脉冲冲击时，它能以10的负12次方秒(ps)量级的速度，将其两极间的高阻抗变为低阻抗，吸收在大量异常ESD/EOS能量，并将其迅速泄放到地层，使两极间的电压箝位于一个预定值，有效地保护电子线路中的精密元器件，免受各种不合理脉冲的破坏，是电子产品常用的保护器件。 -
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