電解電容壽命一般幾年？電解電容廠家發(fā)現(xiàn)電解電容的使用壽命要具體情況具體分析，除了與電解電容工作環(huán)境的溫度有關系，還要看電路中波紋電流的大小因素。

　　How many years is the life of electrolytic capacitor? To analyze the specific situation, in addition to the working environment temperature of electrolytic capacitor, but also to see the size of the circuit ripple current factors.

　　如果是額定最高溫度為85℃的電解電容器，在85℃的環(huán)境溫度條件下壽命為1000小時，而環(huán)境溫度降低到60℃，則壽命可以延長到約10000℃，當環(huán)境溫度降低到40℃，則壽命可達約80000小時。

　　If it is an electrolytic capacitor with a rated maximum temperature of 85 ℃, its service life is 1000 hours at 85 ℃ and can be extended to about 10000 ℃ when the ambient temperature is reduced to 60 ℃. When the ambient temperature is reduced to 40 ℃, the service life can reach about 80000 hours.

　　為什么說電解電容器的使用壽命不僅與環(huán)境溫度的高低有關，還與紋波電流的大小有關？

　　Why is the service life of electrolytic capacitor not only related to the ambient temperature, but also to the ripple current?

　　由于熱應力對電解電容器的使用壽命有決定性的影響，因此，由紋波電流產(chǎn)生的熱損耗是影響電解電容器使用壽命的重要因素。

　　As the thermal stress has a decisive influence on the service life of electrolytic capacitors, the thermal loss caused by ripple current is an important factor affecting the service life of electrolytic capacitors.

　　紋波電流是指流過電解電容器的交流分量電流，他受環(huán)境溫度和交流頻率的影響，環(huán)境溫度不同，紋波電流的最大允許值不同。而當環(huán)境溫度一定時，在允許范圍內，流過的紋波電流越大，電解電容器的使用壽命越短。

　　Ripple current refers to the AC component current flowing through the electrolytic capacitor. It is affected by the ambient temperature and AC frequency. The maximum allowable value of ripple current varies with the ambient temperature. When the ambient temperature is constant, the larger the ripple current, the shorter the service life of the electrolytic capacitor.