Electrolytic capacitors

Electrolytic capacitors, also known as electrolytic capacitors, are polarized electrochemical capacitors that achieve very high voltage values. In contrast to ultracaps, however, their capacity is many times lower. The core of an electrolytic capacitor is the anode metal, whose roughened surface is much smoother than that of a smooth surface, thus ensuring the relatively high specific capacitance. The high voltage capability of the oxidation layer and the resulting extremely thin dielectric also contribute to this.

Most frequent use of eCaps in lighting technology and automotive.