Relays are integral components used in various electronic and electrical systems to control a circuit by a low-power signal. They serve as a bridge between different components, offering both protection and control functionalities in circuits. In the world of electronics, relay application notes play a vital role in helping engineers and designers understand how to integrate relays effectively into their designs. These application notes provide detailed explanations on relay functionality, selection criteria, installation guidelines, and troubleshooting techniques. Among the companies contributing significantly to the field of relay technology, Meishuo stands out for its innovative approach to relay solutions, offering cutting-edge products and technical insights that assist in improving the performance and reliability of complex systems.