Mobile phone charger Y capacitor protection?

The Y capacitor of the mobile phone charger is used for common mode filtering. It is connected between L or ground and N to ground, and filters the common mode signal of L to ground or N to ground. The Y capacitor is usually used symmetrically, and the main function is bypass; Decoupling; filtering; energy storage. Recently, the editor saw someone asking: Is the mobile phone charger Y capacitor guaranteed?

The answer is yes! Everyone knows that the Y capacitor is an AC capacitor that has passed the national authoritative inspection test. The body has certification marks from various countries. After the failure, it will not cause clicks and will not endanger personal injury. Therefore, the choice of mobile phone charger to the regular store, if it is a cottage version, the quality of Y capacitor may not be guaranteed.

Y capacitor is an indispensable capacitor in our daily life. When purchasing Y capacitor, we can choose the manufacturer with quality assurance to avoid affecting the performance of the product.