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电解电容寿命一般几年?
作者:红宝电容 来源:http://www.jnhongbao.com 日期:2020-09-27 11:19 浏览

  电解电容寿命一般几年?电解电容厂家发现电解电容的使用寿命要具体情况具体分析,除了与电解电容工作环境的温度有关系,还要看电路中波纹电流的大小因素。

  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.

  如果是额定最高温度为85℃的电解电容器,在85℃的环境温度条件下寿命为1000小时,而环境温度降低到60℃,则寿命可以延长到约10000℃,当环境温度降低到40℃,则寿命可达约80000小时。

  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.

电解电容

  为什么说电解电容器的使用寿命不仅与环境温度的高低有关,还与纹波电流的大小有关?

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

  由于热应力对电解电容器的使用寿命有决定性的影响,因此,由纹波电流产生的热损耗是影响电解电容器使用寿命的重要因素。

  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.

  纹波电流是指流过电解电容器的交流分量电流,他受环境温度和交流频率的影响,环境温度不同,纹波电流的最大允许值不同。而当环境温度一定时,在允许范围内,流过的纹波电流越大,电解电容器的使用寿命越短。

  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.


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