What are the shortcomings in the use of metal film capacitors?

Metal film capacitors have evolved throughout the electronics industry. Theoretically, there is no short-circuit failure in the use of this material. However, the use of capacitors in the process of use will cause many short-circuit failures, which increases customer concerns about the product. Although metal film capacitors have many advantages, they also have some shortcomings.

The capacity of the metal film capacitor is not as stable as other capacitors, mainly because the metallized capacitor will be lost due to the discomfort of the working environment during long-term use, even if the capacity of the material becomes very high after self-healing. small. Therefore, the environment used is very important, and the stability requirements for the power consumption during the use process are relatively high. It is better to select the capacitor of the metal foil pattern to meet the demand.

In the process of using metal film capacitors, the current capability is poor. This is because the film of the metal film capacitor is relatively thin during the working process, and the current carrying capacity is relatively weak, which is a reasonable solution to this problem. The double-sided metal film capacitor can be used as an electrode to achieve the ideal use requirement. Further increasing the thickness of the metal plating layer can make up for the instability of the capacitance during use and the tendency of current capacity to be poor.