Mistakes to avoid the purchase of film capacitors

As a kind of electronic component used in audio, speaker and other fields, film capacitor is necessary for its correct understanding. When purchasing, avoid the following misunderstandings:

1. The bigger the capacity, the better.

Many people think that when choosing a film capacitor, the larger the capacitance, the better. Although this statement is correct, we must know that the larger the capacitance, the larger the capacitor, which not only takes up more space, but also affects heat dissipation and increases the cost of the product. 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.

2. Good capacitance represents high quality and high quality

Until now, there should still be many people who believe that a good capacitor is used in an appliance, so this appliance must be of high quality and high quality. But in fact, this is not the case. Whether a piece of electrical equipment is of high quality, in addition to whether it chooses a good film capacitor, depends on the quality of other components, whether the overall circuit design is reasonable, and whether its function can satisfy users. Therefore, the choice of capacitor is not a good choice, expensive, but choose the right one. Of course, the excellent quality of the film capacitor is also very important, and even the best circuit design needs to have a good capacitor to support.