A Common failure causes of capacitors include open circuit (internal rupture leading to inability to store charge), short circuit (internal dielectric breakdown forming a direct path), leakage (continuous leakage due to decreased insulation performance), aging (performance degradation after prolonged use), overheating (exceeding the rated operating temperature leading to dielectric degradation or bursting), mechanical damage (external force leading to structural damage), and electrochemical reaction Should (such as capacitive liquid dry or leak).

A When selecting a capacitor, the following factors should be considered: the required capacitance value, the operating voltage (withstand voltage value), the allowable operating temperature range, the frequency response characteristic, the loss Angle tangent value (an important parameter to measure the energy loss), the volume size and the expected service life. Select the appropriate capacitor type and specification according to the specific circuit requirements.

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