With the development of technology and the progress of the times, people have a life with electronic products. Many families have electronic products such as smartphones, computers, televisions, refrigerators, fans, etc. Electronic products are no longer rare items. Electronic products are composed of different electronic components, such as safety capacitors, thin film capacitors, electrolytic capacitors and so on.

Smartphones are essential in these electronic products because they not only have the advantages of being convenient to carry around but also have a series of functions such as making phone calls, video chatting, listening to music and watching TV shows, taking photos and shopping online. These are advantages that other electronic products do not have. Although computers can also video chat and listen to music and watch TV shows and look up information, they are large in size and not as convenient to carry around as smartphones. However, computers also have their own advantages and are people's capable assistants at work.

Electronic products are classified into many categories according to different applications. Handheld devices with multiple functions and convenient portability belong to the category of handheld devices. Handheld devices (handheld device) are also called mobile devices (mobile device or cell phone device), pocket computers (Pocket PC), etc., which are pocket-sized computing devices with a small display screen and touch input or a small keyboard. Because it can access various information anytime and anywhere, this type of device is suitable for many working occasions.

In addition to mobile phones and tablets in life, what other handheld devices are there? The walkie-talkies used by subway staff are also a type of handheld device used for internal communication in real-time. POS machines used in supermarkets, MP3s and MP4s are also handheld devices, but MP3s and MP4s do not have the complete functions of smartphones and are gradually being eliminated.

Thin film capacitors meet the requirements of electronic components such as small size, stable performance, long-term use, high temperature resistance and so on. Thin film capacitors have the characteristics of small size, large capacity, high insulation resistance, wide temperature range and good self-healing properties which meet the requirements of handheld devices and are suitable for handheld devices.

When choosing thin film capacitors for use in electronic products it is recommended to choose branded thin film capacitors as their quality and performance is much better than unbranded thin film capacitors which reduces the likelihood of quality problems occurring.