T491C226K020AH

Tantalum Capacitors

Tantalum capacitors are a type of electrolytic capacitor, which utilizes a tantalum pentoxide layer that acts as a dielectric to store energy. They are typically used in high-frequency and high-voltage applications such as radios and televisions, as well as in automotive, military and aerospace applications. These capacitors have a much higher capacitance-voltage rating than other capacitor types, making them ideal for storing very high voltages.

T491C226K020AH application field and working principle

T491C226K020AH is a type of electrolytic capacitor manufactured by Kemet Corporation. It\'s a tantalum chip capacitor with high frequency, high temperature and high voltage capability. The capacitor has a voltage rating of 25V, a capacitance of 22μF, and a temperature range of -55°C to +125°C. It is commonly used in automotive, military and aerospace applications that require precision and a high level of performance.

The working principle of a tantalum capacitor is based on the phenomenon of electrolytic conduction. This occurs when current is passed between two electrodes submerged in an electrolytic solution. In the case of tantalum capacitors, the positive and negative electrodes are placed on opposite sides of a tantalum plate. The metallic plate is coated with a layer of anodized tantalum oxide, which acts as a dielectric. When an electric charge is applied to the electrodes, an electric field is created across the dielectric layer, causing electrons to be drawn to one of the electrodes. This process creates an electrostatic field that stores energy.

T491C226K020AH capacitors are ideal for high-voltage, high-frequency, and high-temperature applications. Their capacitance and ratings make them valuable for precision electronic circuits and for use in automotive, military and aerospace applications.