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Tantalum Capacitors

Tantalum capacitors are one of the most widely used types of surface mount capacitors. These types of capacitors are mostly used as low-impedance replacements of larger aluminum electrolytic capacitors in circuits where reliability is of paramount importance. Among the types of tantalum capacitors available today, the TM8N755K025UBA model stands out as one of the most popular.

Application Field of the TM8N755K025UBA

Essentially, the TM8N755K025UBA is a type of polarized, double anode tantalum capacitor. It features a nominal capacitance of 25uF, with an allowable range of 18uF to 47uF. This capacitor is equipped with a temperature rating of +85°C, and is manufactured with load life of 2000 to 5000 hours. It has an AC working voltage of 16V and a DC working voltage of 25V.

The TM8N755K025UBA is typically used for higher voltage, power supply type circuits where reliability and low impedance are of primary concern. It is used in products such as telecommunication base stations, mobile phone circuits, computers, LCD/LED TVs, and AC/DC switching power supplies among others.

Working Principle of Tantalum Capacitors

The basic working principle of tantalum capacitors is the same as any other type of capacitor. The capacitor basically consists of two conductive plates, an anode and a cathode, which are separated by a dielectric material. When AC voltage is applied to the capacitor, the electric field generated by the plates causes electrons to move from one plate to the other, thus creating an electric current.

The dielectric material between the plates acts as an insulator, meaning that it doesn’t allow current to flow through it directly. This causes a voltage drop between the plates, resulting in a decrease in the total amount of current flowing through the circuit. This is known as capacitance, and it is the basic principle behind how tantalum capacitors work.

When the terminals of the capacitor are connected to a voltage source, electrons will start to move from one plate to the other, thus creating a current. This current will continue until the electric field across the plates reaches a certain amount, in which the capacitor becomes completely charged. Once the capacitor is charged, the current flow will stop and the voltage across the plates will remain at a constant level.

Conclusion

The TM8N755K025UBA capacitor is one of the most popular types of tantalum capacitors. It is used in various electronic circuits where reliability and low impedance are of primary concern. Its working principle is basically the same as any other type of capacitor, and it relies on a dielectric material between two charged plates to create a voltage drop between the two and reduce the amount of current that can flow through the circuit.

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