In recent years film capacitors are mainly used in electronics, home appliances, telecommunications, electric power, electrified railroads, hybrid cars, wind power generation, solar power generation and many other occupations, the steady development of these occupations has driven the growth of the film capacitor market,X2 amperometric capacitors.
The selection of film capacitors needs to pay attention to the following matters.
1）The operating voltage of film capacitor is affected by the high voltage applied in the selected area and the applied voltage waveform, current waveform, frequency, ambient temperature and capacity, etc. Please check whether the voltage waveform, current waveform and frequency of the two sections of the capacitor are within the rated value before using the capacitor.

2）The pulse current through the capacitor is equal to the product of the voltage rise rate of the capacitance C, i.e. I=CxdV/dt. Due to the loss of the capacitor, when the capacitor is used under high frequency or high pulse conditions, the pulse current through the capacitor will use the capacitor itself to heat up and there will be a risk of thermal breakdown. Therefore, the capacitor has to ensure that the operating conditions are not only bounded by the rated voltage or but also by the rated current. The operating current is considered to be composed of pulse current and continuous current which is determined by the breakdown form, and it is necessary to make sure that the current is within the promised range when applying.
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