The advantages and disadvantages of electrolytic capacitors are big PK!

Aluminum electrolytic capacitors:

Advantages---ESR value is very low, performance of filtering high-frequency wave, long life, high-temperature resistance, high precision, high mechanical strength, small size.

Disadvantages---small capacity (suitable for SMT PCB), low rated withstand voltage (the rated withstand voltage of standard products is 63V), poor anti-surge capability (in actual use, the voltage should be derated by 50% ), the price is more expensive than aluminum electrolysis, and the recent supply is unstable.

Electrolytic capacitors:

Advantages---cheap price, high rated voltage (up to 450V for a single), strong anti-surge capability (can withstand 1.3 times the rated voltage for 60S, very suitable for filtering).

Disadvantages---Short storage life (the leakage current increases after the electrolyte volatilizes, the ESR value increases, and the life is ly 2-3 years), the service life is different, and the price is also different (the standard product is 2000 hours, the longer the life, the higher the price High), greatly affected by temperature (during work, the life span is halved for every 10 degrees of temperature).