M39003/09-0256

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Tantalum Capacitors

Tantalum capacitors provide electronic designers with high capacitance values in a small package, making them ideal for applications where physical space is limited. A typical example of this is the M39003/09-0256. This is a surface-mount tantalum capacitor capable of providing a capacitance value of 0.25 μF and a capacitance tolerance of ±10%. It has a general use voltage rating of 16volts and is designed to work at frequencies up to 100kHz. The device is constructed using a dielectric layer of tantalum pentoxide between two high surface-area electrodes.

Tantalum capacitors differ from other types of passive components, such as ceramic capacitors and electrolytic capacitors, in that they use a tantalum pentoxide (Ta2O5) dielectric. This type of dielectric provides higher values of capacitance than other dielectrics, and the capacitance is stable over a wide range of operating temperatures. Tantalum capacitors are also superior to other types in terms of their high frequency performance, low leakage current, and low ESR (equivalent series resistance).

The basic working principle of a tantalum capacitor is the storage of energy in an electric field. When a voltage is applied between the two electrodes of the device, an electric field is created. This electric field stores energy in the form of charges on the electrodes. When the applied voltage is removed, there is a tendency for the electric field to return to its original state, and the stored energy is released in the form of an electric current.

Tantalum capacitors are widely used in applications that require high capacitance values in a small package, such as bypass capacitors, decoupling capacitors, and filter capacitors. They are used in a variety of industries, including consumer electronics, aviation, automotive electronics, and aerospace. Tantalum capacitors can also be used in applications where a high dielectric constant is necessary, such as timing circuits and communications circuits.

In conclusion, the M39003/09-0256 is a surface-mount tantalum capacitor capable of providing a capacitance value of 0.25 μF. It is constructed using a dielectric layer of tantalum pentoxide between two high surface-area electrodes, and has a general use voltage rating of 16volts and is designed to work at frequencies up to 100kHz. Tantalum capacitors provide high capacitance values in a small package, and are widely used in a variety of industries, making them ideal for applications where physical space is limited.

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