CWR09FC476KB

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Introduction to Tantalum Capacitors

Tantalum capacitors are electronic components used for storing energy, which work by using a stationary and a moveable electric field. They are typically constructed from two metal plates with a dielectric material sandwiched between them. The physical construction of the capacitor plus the dielectric material used determines the capacitance of the device. Tantalum capacitors offer several advantages when compared to other types of capacitors, such as low leakage currents, very low internal resistances, and good stability over wide temperature ranges.

Application Field of CWR09FC476KB

The CWR09FC476KB is a tantalum capacitor with a capacitance value of 4.7µF and a very low leakage current of just 0.03µA. It is ideal for applications requiring high capacitance and excellent reliability such as medical and aerospace electronics. It offers a wide range of applications where high temperature performance, high reliability and long life are critical. These include motor control, power supplies and electronic control systems.

Working Principle of CWR09FC476KB

The CWR09FC476KB tantalum capacitor works on the basic principles of charge storage and capacitor theory. The two plates of the capacitor are separated by a dielectric material, which can be a solid, a liquid or a gas. When a voltage is applied across the plates, electrons move from one plate to the other creating a charge imbalance between the two plates. This charge imbalance creates an electric field, called capacitance. The capacitance of a capacitor is defined as the ratio of the charge stored on one plate of the capacitor to the voltage across the plates of the capacitor.

The dielectric material used in the construction of tantalum capacitors gives them superior performance characteristics and very low leakage current. The dielectric is made of a material that allows electrons to be exchanged between the plates from one side to the other, but with enough resistance to prevent current flow. The leakage current of the CWR09FC476KB is 0.03µA, which is much lower than other types of capacitors, making it ideal for high accuracy applications.

Conclusion

Tantalum capacitors are widely used in many different industries due to their excellent performance, high reliability and low leakage. The CWR09FC476KB is a high capacitance, low leakage tantalum capacitor designed for demanding applications such as medical and aerospace electronics. It offers superior performance, charge storage and very low leakage current of just 0.03µA.

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