This paper discussed the creation and harm of the surge in the electronic circuit, introduced several surge protection devices, and gave a schematic of surge protection circuit.

• 摘要本文讨论了电子线路中浪涌产生的原因及危害，介绍了浪涌保护常用的几种保护器件，并给出了基本的浪涌保护电路原理图。