Nomenclature of patch capacitance.
At present, the relatively large amount of monolithic ceramic capacitors (commonly known as patch capacitors). The chip capacitors produced by AVX Company are NPO, X7R, Z5U, Y5V and so on. Different companies may have different naming methods for capacitors with different functions. Here we quote the naming method of AVX Company. .

The main difference between the above capacitor types is that their filling media are different. In the same volume, the capacity of the capacitor is different when the filling medium is different, so the dielectric loss and capacity stability of the capacitor are also different. Therefore, when using the capacitor, the corresponding capacitor should be selected according to the effect of the capacitor in the circuit.

贴片电容的命名

目前用量比较大的单片陶瓷电容器(通称贴片电容)。AVX公司出产的贴片电容型号有NPO、X7R、Z5U、Y5V等。不一样的公司对于功能不一样的电容器可能有不一样的命名办法，这儿咱们引证的是AVX公司的命名办法。  
  上述电容器型号的区别主要是它们的填充介质不一样。在相同体积下填充介质不一样所构成的电容器的容量就不一样，因此电容器的介质损耗、容量稳定性等也就不一样。所以在使用电容器时应根据需要电容器在电路中效果来选用相应的电容器。