TACR476M003RTA

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Tantalum capacitors are widely used for mission critical and safety critical applications because of their unique characteristics, such as low ESR, wide temperature range, and stable performance. The TACR476M003RTA is an example of a tantalum capacitor that is specifically designed for use in high-voltage/high-current applications. In this article, we will discuss the application field and working principle of the TACR476M003RTA.

Application Field

The TACR476M003RTA is a through-hole device with a case size of 29x14x12mm, and it has a temperature range of -55°C to +105°C. It is commonly used in low-voltage DC applications and motor control applications, as it can handle up to 470µF at a rated voltage of 200V (DC). The part is also compatible with AC applications that require a ripple current of up to 3000mA and a peak voltage of up to 300V (DC). Moreover, as the part is internally protected from over-voltage, over-current, and over-temperature conditions, it can be used in noise-sensitive, mission critical, and safety critical applications.

Working Principle

The TACR476M003RTA is a tantalum capacitor with an anode of tantalum and a cathode of aluminum. When the capacitor is connected to a DC source, a current begins to flow and creates an electric field between the two plates. This electric field creates a charge imbalance, resulting in the plates of the capacitor becoming charged with opposite polarities. The anode plate then becomes positively charged while the cathode plate becomes negatively charged. As the capacitor continues to receive input from the DC source, the charge stored on the capacitor increases. This increase in charge creates an electrostatic field that opposes the input from the DC source. As a result, the current flow is restricted, thus limiting the amount of charge that can be stored. This is the principle by which the TACR476M003RTA functions.

The TACR476M003RTA is a reliable and efficient device for use in high-voltage/high-current applications. It has a wide temperature range (-55°C to +105°C) and is internally protected from over-voltage, over-current, and over-temperature conditions. Furthermore, the part can handle up to 470µF at a rated voltage of 200V (DC), making it an ideal solution for mission critical and safety critical applications.

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