From chips to capacitors, from LEDs to resistors, electronic accessories are ubiquitous in our daily lives. They are the building blocks of modern technology, powering the devices we rely on, from our phones to our computers to our cars and home appliances. This article will introduce some common electronic accessories and their functions, including how to choose and use them, and their application in different application fields, such as communication, industrial automation, medical equipment, etc. In addition, we will discuss some emerging electronic accessory technologies, such as flexible electronics, thermal management, artificial intelligence, etc., and their application prospects in the future. Through this article, you will be able to gain a deeper understanding of the amazing world of electronic accessories.