5G network communication equipment and facilities, such as 5G base stations, servers, modems, routers, set-top boxes..., are vulnerable to high-energy transients caused by lightning strikes or switching of large inductive loads. High-energy transients can damage valuable equipment and cause problems, including power failures, process interruptions, and facility shutdowns. Therefore, for sensitive 5G network equipment operating in harsh environments, high-energy surge protection is necessary. MLCCs, varistors, thermistors and other components that can withstand high-voltage surges must be used for protection in the power circuit. PDC's expertise in circuit protection enables us to provide the following overvoltage and overcurrent circuit protection equipment to prevent damage to 5G network equipment due to transient surges.