Power management and security protection components are crucial for ensuring the long-term power efficiency and stable communication of communication terminals. They mainly include fast charging chips, wireless charging management modules, battery protection chips, low-power power conversion chips, over-temperature/over-current/over-voltage protection components, electromagnetic compatibility (EMC) filters, and electrostatic protection devices. To meet the core requirements of communication terminals for mobility and high-frequency communication, these components achieve efficient power conversion, rapid charging, and stable power supply; at the same time, they effectively resist electromagnetic interference, electrostatic shocks, and electrical abnormalities, ensuring the purity of radio frequency signals and the safety of equipment operation, and conforming to the strict communication performance and safety certification standards of communication terminals.