299D685X9035DB6E3 Datasheet/PDFTantalum Capacitors
Tantalum capacitors are electrochemical capacitors, commonly used as components of electronic circuits. They are also known as Tantalum Electrolytic capacitors. A widely used type of Tantalum capacitor consists of two pieces of porous, sintered metallic powder (mainly tantalum) separated by a manganese dioxide electrolyte layer.
The part number 299D685X9035DB6E3 is the designation for a type of tantalum capacitor, especially those used for smoothing and filtering in radio, TV and communication circuits. It is characterized by low-impedance and low-loss. It can provide greater stability and reliability in dynamic situations, such as those found in switching power supplies.
Application and Working Principle
Tantalum capacitors are mainly used in applications that require a large capacitance in a small package size, such as mobile phone chargers, laptop chargers and other electronic circuits. They are also used in automotive electronics, power supplies, and electric meters.
Tantalum capacitors are polar devices and need to be connected properly in the circuit, with the positive lead towards the positive pole and the negative lead connected to the negative pole.
The working principle of Tantalum capacitors is based on the fact that a very thin dielectric layer is formed when a voltage is applied between the two metal layers (positive and negative). This dielectric layer is able to store a charge, and thus a capacitance is created.
Due to the metal layers forming a closed electric circuit, the device acts as a capacitor. This means that when the voltage across the capacitor is above a given value, the metal layers will act as a short, and the voltage drop across the capacitor will be very small in comparison with the applied voltage. This characteristic makes tantalum capacitors ideal for filtering and smoothing applications.
Tantalum capacitors also have a very low leakage current when compared to traditional electrolyte capacitors. This makes them more suitable for high-power-supply applications and any situation where a high current is used.
To sum up, Tantalum capacitors offer numerous advantages over traditional electrolyte capacitors, such as high capacitance in a small package size, high stability, and low leakage current.