Ultra-small electrolytic capacitors electrolytic capacitors electrolytic capacitors high temperature Green Quan Electronic

Aluminum electrolytic capacitor electrolyte impregnated with burnt-shaped absorbent paper clip in the middle of the two aluminum foil wound with a thin oxide film as a capacitor of the media. Since the oxide film has unidirectional conducting properties, so the electrolytic capacitor having a polarity; large capacity, can tolerate large ripple currents. Capacity error, the leakage current is large; ordinary unsuitable at high and low temperature applications, should not be used at frequencies above 25kHz. Low frequency bypass, signal coupling, power supply filter; its low cost, aluminum electrolytic capacitors has been a popular choice for the power supply. However, their limited life, and susceptible to extreme conditions of high temperature and low temperature. Aluminum electrolytic capacitor paper impregnated with electrolyte is placed on both sides of the metal foil. This electrolyte will evaporate during the life of the capacitor, thereby changing its electrical properties. If the capacitor fails, it will be a violent reaction: a capacitor formed in pressure, forcing it to release the flammable and corrosive gases. Electrolyte evaporation rate is closely related to the capacitor temperature. Each temperature dropped 10 degrees Celsius, the capacitor life expectancy doubled. Capacitor rated life is usually the result at its maximum rated temperature obtained. Typical rated life of 1000 hours at 105 degrees Celsius.