F921E105MAA

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Tantalum capacitors, also known as tantalum electrolytic capacitors, are widely used for their relative miniature size, large capacitance, and high stability compared to other types of capacitors. The F921E105MAA, a type of tantalum capacitor, is a radial leaded low-profile, solid tantalum electrolytic capacitor. It is a non-polarized capacitor with an anode of manganese dioxide and a cathode of tantalum. The capacitance range of the F921E105MAA is from 0.33 μF to 220 μF and the voltage range is from 6.3 volts to 50 volts DC.

The application field of the F921E105MAA encompasses electronics such as consumer electronics and automotive. Apart from the consumer electronics and automotive application, this capacitor is also used in critical areas where large capacitance, low ESR, and space-saving design is critical. Such applications include medical equipment, power back-up systems, aerospace and defense industry, as well as high temperature and long life applications.

The F921E105MAA tantalum capacitor works by storing and releasing electric energy when the capacitor is in an alternating current circuit. This type of capacitor features a cathode of tantalum and an anode of manganese dioxide that are sealed in a ceramic or plastic housing to form an aluminum oxide dielectric. The capacitance of the F921E105MAA can be adjusted by changing the size of the dielectric. The voltage applied to the capacitor determines the dielectric strength of the capacitor and must not exceed the rated voltage.

When a voltage is applied to the capacitor, electrons build up on the cathode and the voltage across the capacitor rises. This positive charge pulls electrons from the anode and when the capacitor is fully charged the charge on both the anode and cathode is the same and the voltage across the capacitor equals the applied voltage. During discharge, the raphase current is directed through the capacitor and the electrons on the cathode are released, reducing the voltage across the capacitor.

The F921E105MAA displaystypical characteristics of other types of tantalum capacitors; its long life and superior voltage reliability at increased temperatures makes it a perfect choice for applications in the medical, consumer electronics and automotive industries. Users can expect a greater capacitance per unit volume, higher energy density and low equivalent series resistance compared to other types of capacitors.

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