EEF-UE0D391LE Capacitors

Aluminum - Polymer Capacitors, or EEF-UE0D391LE, are a type of capacitor made from a combination of aluminum and a liquid polymer. These capacitors are much thinner and lighter than traditional aluminum electrolytic capacitors and can be used in a variety of applications such as power supplies and consumer electronic devices. The most attractive feature of these capacitors is their high capacitance to size ratio, allowing them to be used in tight spaces with limited room for additional circuitry.

Aluminum-polymer capacitors are formed by combining aluminum and a polymer electrolyte. The aluminum serves as the positive electrode, while the polymer serves as the negative. The aluminum oxide layer on the surface of the aluminum acts as an insulating Layer that prevents current from passing through. The polymer is also charged with ions, which allow it to store electrical energy.

When a voltage is applied across the aluminum-polymer capacitor, the positive ions of the polymer move toward the negative electrode and the negative ions move toward the positive electrode. This movement of ions creates a charge across the electrodes, thus storing electrical energy. To release this energy, the voltage is reversed, causing the ions to move back to their original positions.

Aluminum-polymer capacitors have several key advantages. They have a much lower equivalent series resistance (ESR) than traditional aluminum electrolytic capacitors, which means they can store more electrical energy and have less power losses during operation. This makes them ideal for applications that require high voltage and high frequency such as power supplies and antennas. Additionally, they have a very low self-discharge rate, meaning they will retain their charge for a long period of time.

Aluminum-polymer capacitors are widely used in a variety of applications, such as automotive electronics, communication equipment, power supplies, and portable electronic devices. Due to their high capacitance to size ratio, they are ideal for applications that require a small footprint or need to be light and thin. Additionally, their low ESR and self-discharge rates make them suitable for high voltage and high frequency applications.

In conclusion, aluminum-polymer capacitors are an attractive alternative to traditional aluminum electrolytic capacitors. They are thinner and lighter than standard capacitors, have a high capacitance to size ratio, and have a lowself-discharge rate. These advantages make them well suited for a variety of applications in communication equipment, power supplies, portable electronics, and other industries.