M39003/01-2890/TR

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The M39003/01-2890/TR is an example of a tantalum capacitor. These capacitors are especially valued for their reliability in electronic circuits because of their superior moisture and temperature resistance compared to other capacitors.

Application Field

Tantalum capacitors are used in a variety of applications due to their high levels of moisture and temperature resistance. These capacitors are especially useful in automotive, communications, and medical electronics, where there can be wide temperature variations. Tantalum capacitors are also used to reduce noise and power supply ripple in a variety of tiny applications.

Working Principle

Tantalum capacitors function in the same basic way as all other capacitors: they store and release energy when the input voltage to the capacitor is changing. However, tantalum capacitors use tantalum metal as the electrodes, immersed in a liquid electrolyte. The solid electrolyte also forms a solid layer of dielectric material around the electrodes, which helps prevent unwanted electrical current passing through the capacitor.

As an electron is transferred from one electrode to the other, an electric field is created and stored inside the capacitor. This electric field is proportional to the amount of charge (electrons) that are transferred between the electrodes. When the voltage to the capacitor is steady (as in a dc power supply), the capacitor is effectively “charged” and no additional charge is stored. When the voltage is changing, however, the capacitor will store and release energy as it charges and discharges.

Conclusion

The M39003/01-2890/TR is a tantalum capacitor. These capacitors are valued for their high levels of temperature and moisture resistance, and are used in a variety of applications, from automotive to communications and medical electronics. The capacitor works by storing and releasing energy in response to a changing input voltage.

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