ELXV101ELL121ML15S

Aluminum electrolytic capacitors, also known as aluminum electrolyte capacitors, are members of the capacitors family. They are divided into electrical, mechanical, chemical, thermoelectric, magnetic, and thermal capacitors. Aluminum electrolytic capacitors are unique and are highly valued for their capabilities for long-term energy storage, superior dielectric properties, and wide temperature range. They are mainly used in power supplies, communications equipment, digital circuits, and low-frequency signal processing systems.

The ELXV101ELL121ML15S capacitors belong to the aluminum electrolyte capacitors and are mainly used for high reliability, low voltage applications. They are designed to be highly durable, providing long-term protection from voltage ripple. This capacitor series features a rated voltage of 16V, maximum operating temperature of 105°C, and a ripple current of 152mA/mm2.

The working principle of aluminum electrolytic capacitors starts at the electrode--also known as anode and cathode. The cathode, which is usually aluminum, is immersed in an etching bath in glass containing electrolyte in solution. An electric current flows through the solution from anode to cathode, charges, and forms a thin film on the surface of the aluminum plate. This film acts as the dielectric material and can hold an electrical charge. The thickness and quality of this film determine the capacitance values of the capacitor.

As current continues to flow, ions pass through the electrolyte and are attracted to form an oxide layer on the cathode, generating more electrons that build up a voltage across the capacitor. As long as this flow of electrons continues, the capacitance increases as does its store of energy. When the voltage rises to a certain level, the oxide layer breaks down, releasing all the electrons back into the electrolyte, thus resetting the capacitor.

Due to their design, these capacitors have some limitations such as lower capacitance levels compared to other capacitors, higher equivalent series resistance (ESR), and limited life cycle. Additionally, in order to avoid the effects of high temperature, these capacitors should be stored in cool and dry place when not in use.

In conclusion, the ELXV101ELL121ML15S capacitor is widely used in high reliability, low voltage applications due to its dielectric properties, long-term energy storage capabilities, superior performance, and wide temperature range. This capacitor is essential for maintaining the stable operation of digital circuits, communications equipment, and power supplies.