Tantalum Capacitors

Tantalum capacitors are one of the most commonly used types of capacitors. They are constructed with a tantalum anode covered with an insulating oxide layer and a cathode typically made of manganese dioxide. Depending on the application, the anode can be solid or in the form of a sintered pellet. The latter has a significantly higher capacitance compared to the solid type.

The 109D866X9100K2 capacitor is a high-capacity, low-leakage device suitable for a wide range of applications. It is a sintered tantalum capacitor, offering a capacitance rating of 9100 pF (pico-farads) and a voltage rating of 10 VDC (volts). It has a maximum ripple current rating of 0.19 A. This component has a small outline size of just 0.223 x 0.223 inches (5.6 x 5.6 mm), making it ideal for use in smaller electronic systems.

Application Field

The 109D866X9100K2 capacitor offers performance and reliability in a wide range of applications, including:

• High-frequency DC-DC converters
• Power management circuits
• Switching power supplies
• Battery-backed systems
• Electronic automotive systems
• Cellular communications systems
• Audio and video applications

Working Principle

The principle of operation of a tantalum capacitor is similar to that of other capacitors. When an electric field is applied between the two electrodes, a current begins to flow through the dielectric material between the electrodes. The current builds up an electric charge and this charge is stored in the dielectric material. When a new electric field is applied, the electrons flow in the opposite direction, and the capacitor discharges its stored energy.

The performance of the 109D866X9100K2 capacitor is dependant on its construction and the quality of the dielectric material used. The dielectric is typically a chemically stable, non-metallic, inorganic oxide such as tantalum oxide. Depending on the construction of the device, other materials such as manganese dioxide may be used as well. This capacitor has a low low-leakage characteristic, which means that it does not discharge its charge too quickly over time.

The capacitor also features a high capacitance rating of 9100 pF. This allows it to store a large amount of energy in a small space, making it ideal for use in high-frequency circuits where a large capacity is required.

The 109D866X9100K2 tantalum capacitor is an ideal choice for applications where a combination of high capacitance, low leakage, and long life are desired. With its small outline size and low-profile design, it is perfect for use in portable electronic equipment where space is at a premium.