T494D226K035AT

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Tantalum capacitors are an extremely popular and wide-ranging technology used in the modern electronics industry. The T494D226K035AT model is a specific type of tantalum capacitor, one of the most popular varieties due to its relatively low profile, long life, and good performance. As a result, it has found a wide array of industrial and commercial applications as a reliable and compact component.

Composition and Specifications

The T494D226K035AT consists of a solid tantalum anode, tantalum power cathode, and an electrolytic layer. The entire package is encased in a ceramic casing. It has a capacity of 2.2 microfarads at 10 volts and has a nominal size of 4mm by 4.5mm. The operating temperature range is -55 to +125 degrees Celsius.

Applications

T494D226K035AT capacitors are primarily used in low- and medium-power applications. Common uses include: filtering, buffering, decoupling, and noise reduction. It is useful in switching power supplies, LED lighting, DC-to-DC converters, and other low-voltage, low-power applications. Its low profile makes it quite useful in applications with limited space, such as on-board electronics.

Working Principle

Tantalum capacitors, including the T494D226K035AT, are capacitors that use a tantalum-containing electrode. The anode of the capacitor is a solid wafer of tantalum and the cathode is a tantalum-containing powder. These electrodes are separated by an electrolyte. When a voltage is applied to the electrodes, current flows through the electrolyte, causing ions to exchange charge between the electrodes and the electrolyte.

The capacity of the capacitor, i.e., the amount of charge it can store, is a function of the applied voltage. As the voltage increases, the capacity increases; as the voltage decreases, the capacity decreases. The T494D226K035AT capacitor is rated for 10 volts, as noted above. It can also handle up to 20 volts, but the capacitance will be less at higher voltages. The capacitance also decreases with higher temperatures.

Advantages

Tantalum capacitors, including the T494D226K035AT, offer several advantages over other capacitor types such as electrolytic and ceramic. They are smaller, lighter, and more stable than other types. They also have a low equivalent series resistance (ESR) and better heat dissipation. Since they do not require a separate dielectric layer, they are also more efficient than other types.

The T494D226K035AT capacitors also have excellent temperature stability. This is especially important in applications where the ambient temperature may vary greatly. They are also relatively easy to use and have relatively low voltage ratings, making them suitable for low-voltage applications.

Disadvantages

Although tantalum capacitors, including the T494D226K035AT, are generally reliable, they do have several disadvantages. The main issue is their cost. Tantalum capacitors are generally more expensive than other types of capacitors, making them less desirable for some applications. They also tend to be more susceptible to damage from shock and vibration than other types.

The T494D226K035AT capacitors also have relatively low capacitance, which limits their usefulness in high-power applications. Finally, they are slightly more difficult to solder than other types of capacitors due to their small size and lower melting point.

Conclusion

In conclusion, the T494D226K035AT tantalum capacitor is an extremely useful and reliable component in modern electronics. It offers excellent performance and stability in low- and medium-power applications, such as filtering, buffering, decoupling, and noise reduction. Its main downside is its cost due to its relatively low capacitance. Nevertheless, it is an invaluable asset for circuit designers, given its myriad of advantages.

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