Knowledge

        ①When the power capacitors is operated for a long time under the environment of overvoltage, overcurrent, high temperature, etc., the insulating medium of the capacitor is aging and a large amount of gas is generated, which increases the internal pressure of the power capacitor. When the pressure is greater than the maximum [...]

Electric double layer capacitors can also be called supercapacitors, a new type of energy storage device with high energy density electrochemical capacitors, which are thousands of times higher in capacity than ordinary electrolytic capacitors. Electric double-layer capacitors have the characteristics of short charging time, long service life, good temperature characteristics, energy saving and environmental protection. Classification [...]

If the electric fan capacitor uses 1.5UF or 2UF, it may be an AC fan, and this capacitor is the starting capacitor of the AC fan motor. If the power supply part is a resistor-capacitor step-down, it may be a capacitor used for step-down. Two capacitors are introduced separately. 1. If the resistance-capacitance step-down is used, [...]

Can capacitors of the same patch size be replaced? Capacitors of the same package cannot be distinguished from the appearance. The capacitors of 100nF and 1nF in the same package are difficult to distinguish from the appearance, although they may be different in thickness. 1. If the chip on the power side of the chip may [...]

Safety capacitors are safety capacitors that will not affect the human body even if they fail. They are favored because of their high safety expertise. However, for the purchase or use of safety capacitors, routine testing of safety capacitors is an indispensable process. 1. Rotate the shaft gently with your hands. It should feel very smooth, [...]