The reason why the X capacitor is used in the charger

Have you ever noticed that the charger has been used for a long time or even before it has been used for a long time, why is this? There are X capacitors in the material. When the temperature rises and the use time is too long, the capacitor will expand when it exceeds the temperature, which will cause the bulge. What everyone needs to know is: X capacitor drum kit, the essence is caused by excessive internal pressure. What causes excessive stress? high temperature. Further, what causes high temperatures? Overcurrent.

There are two reasons for the excessive capacitance current: First, the capacitor quality is degraded, and the leakage current is increased. Second, the voltage across the capacitor is abnormally increased, exceeding its allowable range. There are many reasons for the temperature rise. The ambient temperature rises sharply, the internal resistance of the X capacitor increases, the internal micro-short circuit of the capacitor, the frequency of the voltage across the X capacitor is severely shifted or the harmonics are increased (the power supply filter circuit).

Regardless of the cause of the capacitor drum kit, this X capacitor has been destroyed, can no longer be used, must be replaced.