The electrolytic capacitors are mostly polarized and it requires at least one of the electrodes to be positive related to other. The Electrolytic Capacitors will malfunction if the voltage is reversed. This is because a reverse-bias voltage above 1 to 1.5 V will destroy the center layer of dielectric material. And it does not stop here, with the loss of dielectric material, the capacitor will short circuit, and with this short circuit current, the electrolyte will rapidly heat up and either leak or cause the capacitor to burst.
It has a wide operating temperature range of -55 to 105°C. It offers an excellent reliability and long life – up to 2000 hours at 105°C. At lower operating temperatures, life expectancy is well over 10 to 15 years. They have better performance than the consumer grade parts. They are widely used in switch mode power supplies found in TVs, VCRs, and interconnecting stages of amplifiers at audio frequencies.