我們都知道鋁電解電容在規定的工作溫度范圍內，可長期穩定的工作，但卻不知道鋁電解電容能夠承受的最大電壓是多少。

　　We all know that the aluminum electrolytic capacitor can work stably for a long time within the specified working temperature range, but we don't know the maximum voltage that the aluminum electrolytic capacitor can withstand.

　　在交流電路中，要注意所加的交流電壓最大值不能超過電容的直流工作電壓值。

　　In the AC circuit, it should be noted that the maximum AC voltage applied should not exceed the DC working voltage of the capacitor.

　　鋁電解電容的額定工作電壓有6.3V、10V、16V、25V、50V、63V、100V、250V、400V、500V、630V。電容在電路中實際要承受的電壓不能超過它的耐壓值。

　　The commonly used working voltages of fixed capacitors are 6.3V, 10V, 16V, 25V, 50V, 63v, 100V, 250V, 400V, 500V and 630V. The actual voltage that the capacitor should bear in the circuit should not exceed its withstand voltage value.

　　在濾波電路中，電容的耐壓值不要小于交流有效值的1.42倍。

　　In the filter circuit, the withstand voltage value of capacitor should not be less than 1.42 times of AC effective value.

　　另外還要注意的一個問題是工作電壓裕量的問題，一般來說要在15%以上。雖然說， 48V的工作電壓使用50V的鋁電解電容短時間不會出現問題，但使用久了，壽命就有可能降低。

　　In addition, we should pay attention to the problem of working voltage margin, which is generally more than 15%. Although it is said that the working voltage of 48V and the use of 50V aluminum electrolytic capacitor will not cause problems in a short time, but the service life may be reduced if it is used for a long time.

　　如果在電解電容的工作環境中，保證在額定電壓具有較多的余裕，就能夠降低內阻、降低漏電流、降低損失角、增加壽命。

　　If there is more margin at rated voltage in the working environment of aluminum electrolytic capacitor, the internal resistance, leakage current, loss angle and service life can be reduced.