Electric Double Layer Capacitors
An electric double layer capacitor is a capacitor that uses a physical phenomenon, the electric double layer, to increase the storage capacity. It is used for memory backup power supplies for electronic circuits and uninterruptible power supply units. Since internal resistance is lower than batteries, electric charging and discharging are possible in a short time. In addition, there is little deterioration due to charge and discharge, and the product lifespan tends to be long. There are cylindrical and box shapes. The cylindrical type has good production efficiency when mass-produced, and the box type has a high energy density per volume. These electronic components are available in various types, such as surface-mount and through-hole mount, depending on the mounting method. In addition, the capacitance, rated voltage, internal resistance, etc., differ depending on the product, so it is necessary to select one according to the application and environment.