If the capacitor capacity is very small, high voltage, low voltage, the reverse can not see what; if the capacity is slightly larger (100UF above), voltage from the operating voltage is near, the capacitor will not exceed 10 minutes on the bad, bad The performance is: first drum kits, then blowing air, and then explode pulp. The company is located in:

Reverse polarity capacitor will explode, is not to say that can not be directly connected to the AC power?

Can not be connected to the AC power supply, because this is a polar capacitor design is used in the DC power supply for filtering purposes, I had also asked such a problem, thought for a long time, has been asked, "Capacitor is not cut off straight through it, How can polar capacitors not be used on AC power sources? "Because there is a special substance inside this polar capacitor, this material can not withstand backpressure and can reverse penetrate or explode if passed to AC.