Main failure modes and failure mechanisms of capacitors(4)

    Main failure mechanism causing deterioration of electrical parameters of Capacitor.

    (1) Damp or surface contamination;

    (2) Silver ion migration;

    (3) Self-healing effect;

    (4) Electrical aging and thermal aging of dielectric;

    (5) Volatilization and thickening of working electrolyte;

    (6) Electrode corrosion;

    (7) Dielectric corrosion in wet electrolytic capacitors;

    (8) The interaction between impurity and harmful ions;

    (9) The contact resistance of the lead wire and the electrode increase.