Is the loss of film capacitors related to humidity?

Film capacitor used in a humid environment will gradually condense moisture on the surface of the film capacitor. This moisture will increase the leakage current of the film capacitor, resulting in increased loss of the capacitor if the film surface of the capacitor or the surrounding moisture The moisture in the capacitor will cause oxidation and corrosion of the metal inside the capacitor, which will also increase the loss of the film capacitor.

The oxidation or corrosion of the leads outside the same capacitor also increases the loss of the film capacitor. Therefore, it is necessary to ensure the dry and moisture-proof environment of the film capacitor. When using a film capacitor, we must also pay attention to the ambient temperature. This will ensure the normal life time of the film capacitor.