199D476X0010D1V1

Tantalum Capacitors

Tantalum capacitors are electronic components which store electric energy using a layer of solid tantalum on one of two electrodes connected to an electrical circuit. Although small in size, they are widely used in a variety of electronic products, from consumer electronics to automotive applications, due to their long-term reliability and very low leakage current. The most common type is the 199D476X0010D1V1, which is a surface-mount, Axial leaded, snap-in tantalum capacitor.

The 199D476X0010D1V1 is constructed with a tantalum powder and organic polymer mixture pressed into a cup-shaped base. This is then a layered oxide film is grown on the inside surface of the tantalum to create a capacitor dielectric. The layers of film are formed as the tantalum is cathode polarized - the polarity of the oxide being dependent on the kind of anode material on the element. An Anode (+) lead wire is then bonded to each side of the cup and a cathode (-) wire is inserted and fused into the centre.

Application field

The 199D476X0010D1V1 is ideal for high-frequency and high-performance applications, and is used for a wide variety of electronic components. The list of applications includes DC-DC converters, power supplies, switch-mode power supplies, and automotive applications such as engine management systems, radio systems, and airbag controllers. In addition, it is also used in cell phone and consumer electronics, and can be used in medical devices.

Tantalum capacitors also have advantages over other types of capacitors, such as a longer lifetime, higher capacitance values, and better temperature stability. This makes them ideal for powering high-load applications where large amounts of energy must be quickly stored and discharged. In addition, due to its low equilibrium temperature coefficient, the Tantalum capacitor can be used in high temperature applications such as motor control systems and military weapons.

Working Principle

Tantalum capacitors work on the principle of capacitance. This means that the capacitor stores electrical energy in the form of a static charge on its terminals. When a voltage is applied to the capacitor, it stores a charge on its electrodes. The capacitance of the capacitor is inversely proportional to the distance between the two electrodes, and so a Tantalum capacitor has a higher capacitance than other types of capacitors.

The voltage across the capacitor is limited by its dielectric material, and in the case of a Tantalum capacitor, the dielectric is a layer of solid tantalum. The current rating of the capacitor is limited by its losses, which occur as energy is added to or removed from the capacitor. This means that the current rating of the 199D476X0010D1V1 is much lower than other types of capacitors.

While Tantalum capacitors are not as popular as other types of capacitors, they are well suited for high-temperature or high-performance applications. Due to its superior reliability and very low leakage current, the 199D476X0010D1V1 is widely used in a variety of electronic products.