The performance and usage of electrolytic capacitors, surface mount capacitors, tantalum capacitors, and oscillating capacitors respectively 1

Electrolyte capacitors: have a large capacity to volume ratio, low voltage resistance, high dielectric loss, and mostly have polarity. They are commonly used in low-frequency circuits such as filtering and low-frequency signal coupling.diode

Ordinary capacitors: There are various types of media, such as paper, mica, porcelain, polyester, and single stone. The common feature is that the capacity to volume ratio is small, it is easy to make high withstand voltage, the dielectric loss is small, and there is no polarity. It is mostly used for signal coupling, decoupling, filtering, differential integration circuits, etc. in medium and high frequency applications.

Whether it is electrolytic capacitors or other capacitors, they are consistent in their main characteristics of "capacitors"

1. Ceramic capacitors are more expensive than electrolytic capacitors because their performance is more stable, and their capacity deviation and loss angle are relatively small. DF is generally less than 1%, and the capacity deviation is also less than 5%. The disadvantages are high price and large size.diode

The characteristic of electrolytic capacitors is that they can achieve small volume and large capacity, which can save space for use. But its loss is very high, within 10%, of course, DF<5% can also be customized. And its capacity deviation is generally within 10%.

3. The third issue is of course a stability problem. Ceramic capacitors have relatively stable performance, while electrolytic capacitors have a smaller capacity after being unused for a long time and need to be charged for a period of time before use.diode