4THE220M Capacitors

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Tantalum - polymer capacitors are an important type of electronic component used for a range of different tasks, including power supply filtering and energy storage. The popular 4THE220M model is no exception. In this article, we will look at what makes this device special, covering both its application field and working principle.

What is a 4THE220M?

The 4THE220M is a discrete surface mount, non-polarised solid-state capacitor made from tantalum-polymer. It is notable for its low ESR (equivalent series resistance) and high capacitance per unit volume, which makes it suitable for a range of electronic applications. It is a popular choice for its high reliability and relatively cheap cost compared to other types of capacitors.

The 4THE220M Application Field

The 4THE220M is ideal for device decoupling, which is the process of reducing unwanted interference between different circuits. This is necessary for a range of applications, with the most common use being interruption suppression in switch-mode power supplies. The reduced ESR of this particular model makes it suitable for high-frequency conversion applications, such as those found in avionics.

In addition to this, the 4THE220M is suitable for energy storage and discharge. This is important for voltage regulators and power inverters, which need to be able to store and then quickly release energy. The 4THE220M has been proven to be a reliable solution in this regard.

Finally, the 4THE220M is also used for general filtering tasks, such as power supply smoothing and voltage droop control. Due to its high capacitance and low ESR, it is often favoured by designers looking for efficient filtering solutions.

The 4THE220M Working Principle

The 4THE220M is made up of two layers of electrodes, known as the anode and cathode. When a voltage is applied across these electrodes, a current carrying layer of electrons is formed between them. This forms a capacitance, allowing the device to store energy and then rapidly discharge it when needed.

This capacitance is limited by the amount of surface area available on each electrode. The 4THE220M is designed with this limitation in mind, using a tantalum-polymer material to achieve a high surface area. This material is exceptionally stable, making the device extremely reliable in a range of environments.

The 4THE220M is notable for its low level of leakage current, which is the amount of energy lost over time. This makes it suitable for energy storage or filtering were low energy consumption is required. As touched upon earlier, the 4THE220M’s ESR is also relatively low, meaning it can be used in a range of high-frequency applications.

Conclusion

The 4THE220M is a popular Tantalum - Polymer capacitor designed for a range of applications. Its low ESR and high capacitance per unit volume make it an attractive solution for filtering, interruption suppression, energy storage and discharge, and voltage regulation. Its tantalum-polymer construction also ensures the device is highly durable and reliable.

The specific data is subject to PDF, and the above content is for reference