TCJB157M002R0070

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Tantalum - Polymer Capacitors: TCJB157M002R0070 application field and working principle

Tantalum-polymer capacitors, like all capacitors, are components that store electrical energy. They store energy like a battery, but do so in an electrochemical state in an extremely small, inert package. In many applications they are the preferred solution, due to their low ESL (Equivalent Series Resistance) and their ability to perform reliably in environments with high temperatures and vibration.
TCJB157M002R0070 is an example of a Tantalum-polymer capacitor which is used in a variety of applications such as power management and memory protection in laptop computers, desktops and consumer electronics. It offers ultra-low ESR ratings of 0.002 ohms and higher reliability than competitors.

Application Fields

Tantalum-polymer capacitors are extensively used in consumer electronics, such as computers, mobile phones, digital cameras and audio devices. In computers, they provide power management and memory protection, whilst in audio equipment, they are used as audio input and output bridges. With their ultra-low ESR ratings, they are ideal for use in high-temperature and vibration environments, providing the reliability and stability required in the device.

They can also be used in automotive and military applications. TCJB157M002R0070, for example, is designed for higher stability and temperature tolerance, making it suitable for temperature sensitive automotive control systems. Its low ESR makes it well-suited for providing power to resistive loads, providing the performance demanded by strict military requirements.

Working Principle

Tantalum-polymer capacitors work by storing electrical charges between the two electrodes. The two electrodes, the anode and the cathode, are made from a thin metallic oxide film, usually tantalum oxide. When a voltage is applied across the capacitor, a very thin electrical charge forms on the anode, which is attracted to the opposite charge forming on the cathode (similar to the attraction of opposite charges in a battery).

The energy being stored is due to an electrochemical action. This creates a dielectric between the two electrodes and causes the charge to build up until it reaches an equilibrium. This stored charge then provides an electrical circuit which stores the energy until it is needed.

Tantalum-polymer capacitors are known for their impressive levels of energy storage, allowing them to store up to several hundred times more energy than traditional electrolytic capacitors. This also enables them to reach a much higher ESR rating compared to traditional electrolytic capacitors.

Conclusion

Tantalum-polymer capacitors offer a range of advantages over traditional electrolytic capacitors, making them ideal for use in many applications such as power management and memory protection in laptops, desktops and consumer electronics, as well as in automotive and military applications. They are relatively small, inert and offer impressive power storage capacities.

TCJB157M002R0070 is an example of a popular tantalum-polymer capacitor, offering a particularly low ESR rating and higher reliability compared to competitors. It is suitable for use in both high temperature and vibration environments, providing the stability required in a wide range of applications.

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