Tantalum Capacitors

M39003/09-2045 Application Field and Working Principle

Tantalum capacitors are manufactured from powder. This type of capacitors is a special electrolytic capacitor because the anode lead is made from sintered tantalum powder. The row material also contains a combination of manganese oxide and oxidizers such as sodium and potassium, which serve as a solid electrolyte. The anode lead is used as a cathode, while the cathode lead is connected to a foil collector located at the bottom of the capacitor body. This type of capacitor is also called a "wet tantalum capacitor" because it is hermetically sealed with a potting compound.

The M39003/09-2045 series of tantalum capacitors features excellent performance over a wide range of temperatures. The capacitors are also highly stable under temperature, humidity, and voltage changes.

The device utilizes a conventional working principle; it has no internal electrical connections between the electrodes as does the typical dry tantalum capacitor. Its capacitance is a function of both the area of the electrodes and the distance between them, determined by the dielectric constant of the material used. The dielectric constant of the material is related to the relative permittivity, which is a measure of the electric field produced by an electric source.

These capacitors have a high self-resonant frequency due to their low ESR (equivalent series resistance). This makes them ideal for use in applications such as valve-controlled amplifiers, high-fidelity amplifiers and other high-frequency circuits. They are also widely used in power supplies, RF circuits, and switching power supplies.

The capacitors have a higher temperature coefficient of capacitance (TCC) than most other types of capacitors, which results in a more reliable device under extreme operating conditions. They are also extremely rugged, providing a long life and excellent reliability. The higher TCC also ensures that operating conditions can be adjusted more easily, allowing the user to set their desired performance levels.

In conclusion, the M39003/09-2045 series of tantalum capacitors is designed to provide excellent performance and reliability. They are ideal for use in a wide range of applications, particularly where high performance and low noise levels are paramount. The capacitors\' high TCC and low ESR make them suitable for a wide variety of high frequency circuits, making them an invaluable addition to any design.