Thanks to their solid electrolyte, polymer electrolytic capacitors have an extremely low equivalent series resistance (ESR), which has a direct impact on frequency stability. In high-frequency applications, such as DC/DC converters, high-speed circuits or 5G base stations, a low ESR ensures minimized signal distortion and higher efficiency.
They also respond more quickly to load changes and offer a more stable power supply. Another advantage is their low self-inductance, which makes them particularly suitable for fast switching processes in power electronics. Conventional electrolytic capacitors can lead to power losses and unwanted signal interference due to their higher ESR. Polymer capacitors, on the other hand, work more efficiently, improve the energy efficiency of the system and reduce heat generation.
They are therefore indispensable in modern high-performance applications - especially in industrial electronics, telecommunications and automotive technology.