Due to its excellent performance and suitable unit price, thin film capacitors are widely used in electronics, home appliances, telecommunications, electric power, electrified railways, hybrid electric vehicles, wind power generation, solar power generation and other industries, and become indispensable for the upgrading of the above industries. Electronic component. When buying film capacitors, some people who are not too experienced will have some problems: the capacity of the film capacitors is not properly selected. Some users feel that the larger the capacity of the capacitors, the better. When choosing, choose the capacity as much as possible, not the capacity. Small, is this really correct?
Many people think that according to the principle of capacitors, when choosing a film capacitor, the larger the capacitance, the better. Although this argument is reasonable, we must know that under current technology, the larger the capacitance, the larger the capacitor, which will take up more space, in some electronic products like mobile phones. Space is very important. It is not worthwhile to waste the position because of the wrong choice of capacitors.
Moreover, the large capacity and large volume will also affect the heat dissipation. The heat dissipation is not good for the film capacitor or the electrical appliance. In addition, in general, the larger the capacitance of the same type of withstand voltage, the more expensive it is. We have to choose the right one, and the right one is good. Therefore, we must choose the film capacitor according to the requirements of the overall circuit, and choose the capacitor that can meet the circuit requirements. It is not necessary to blindly pursue large capacity.
