T494X107M025AT Capacitors

Tantalum Capacitors

Tantalum capacitors are widely used and are known for their relatively low profile in physical dimension and low ESR. In this article, we will discuss the T494X107M025AT application field and working principle.

Application field

The T494X107M025AT is a super low-profile, high reliability capacitor that offers a frequency range up to 1GHz and a temperature range from -55°C to +125°C. It is often used in harsh environmental applications due to its high reliability and ESR. It is commonly seen in military, instrumentation, aerospace, communication, automotive, and industrial applications.

The T494X107M025AT is suitable for use in a wide variety of applications, including switching regulators, audio, digital circuits, and other systems where an ultra-low-ESR, high-q capacitor is needed.

Working Principle

Tantalum capacitors are composed of two electrodes, one made of tantalum and the other made of a metal, usually aluminum. Tantalum is an electrochemical material that forms an oxide layer when energized, which acts as a dielectric. In this way, the capacitor is able to store electrical energy and create a voltage drop.

T494X107M025AT capacitors feature a high-grade tantalum pellet with an encapsulated polymer dielectric material that is robust and highly reliable. This ensures that the device can withstand high temperatures and heavy duty cycles.

A key advantage of the T494X107M025AT is its ability to remain impedance-stable, not just over time, but across all frequencies. This is due to its low ESR, which is a measure of the resistance of the capacitor in relation to its capacitance.

Additionally, the device has a low series inductance, which improves electric power transfer, and is highly resistant to vibration and shock.

Conclusion

The T494X107M025AT is a high-reliability, low-profile, self-healing capacitors operating up to 1GHz and temperatures to 125°C that are often used in military, aerospace, industrial, automotive, and communication applications. It has a low ESR, series inductance, and remains impedance-stable across all frequencies.