T491B474M050ATAU01

T491B474M050ATAU01 is a tantalum capacitor from KEMET T491 series. It has a capacitance of 47uF, 6.3V DC working voltage, 10% tolerance, -55 to +125 °C temperature range, and a ±20% voltage derating up to 105 °C. It is housed in a D case with two polarity options, anode (+) or cathode (-) marking.

Tantalum capacitors are a type of electrolytic capacitor that utilise semiconductor-based capacitors. They are known for their superior long-term stability and high capacitance values compared to other forms of capacitors. The capacitance of a tantalum capacitor is typically considered double that of an aluminium electrolytic capacitor of equal size. The advantage of using tantalum capacitors is that they are easier to integrate into circuits as they have high operating voltage, high capacitance values, and long operating life.

T491B474M050ATAU01 is a surface-mount type capacitor, suitable for both reflow and wave solder processes. Its key feature is its relatively thin construction, which allows for high frequency operation. Its high capacitance makes it ideal for use in frequency selective circuits, such as oscillators, filters and pulse circuits.

The working principle of the T491B474M050ATAU01 is simple. As electrical current passes through the electrolytic medium, positive ions from the anode are drawn towards the negative electrode, thus forming an electrical field. This generates a small electrical voltage across the terminals, which stores energy in the capacitor.

T491B474M050ATAU01 can be used in a variety of applications, such as power supplies, portable devices, and automotive electronics. The relatively low ESR values of the capacitor make it suitable for use in noise suppression circuits. The small size of the capacitor also make it great for use in board-level designs, such as in mobile phones, tablets, and laptops.

To summarise, T491B474M050ATAU01 is a surface-mount tantalum capacitor used in a variety of applications. It has a relatively low ESR value, allowing it to be used in noise suppression circuits. It is also small and thin, making it perfect for board-level designs. The working principle of the capacitor is based on the production of a small electrical voltage across its terminals, generated by the passage of current through electrolytic medium.