Seven common failure modes of capacitors(3)

Main failure Mechanism of 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) Increased contact resistance of the lead wire and electrode