Seven common failure modes of capacitors(4)

    Main causes of leakage of Capacitor.

    (1) Under the action of electric field, the impregnating material can separate the liberation gas to make the pressure in the shell one liter;

    (2) The welding between the metal shell and the sealing cover of the capacitor is not good;

    (3) The insulation is not well welded with the shell or lead wire;

    (4) Poor mechanical seal of semi-sealed capacitor;

    (5) The surface of semi-sealed capacitor leads is not smooth enough;

    (6) Working electrolyte corrode solder joint.