195D226X0016Y2T

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Tantalum Capacitors

Tantalum capacitors come in a variety of shapes and sizes. The “195D226X0016Y2T” model is an electrolytic capacitor that features a solid tantalum pellet for the anode, surrounded by manganese dioxide and covered with a thin layer of tantalum oxide. This type of capacitor is particularly useful in high current circuits, as it is capable of delivering high amounts of current with relatively low losses. As such, it is commonly used in a variety of applications.

Application Field

Tantalum capacitors are primarily used in audio, power, and energy storage applications. For audio applications, they are often used to reduce electrical noise or filter out power supply ripple. In power applications, they are used to improve the efficiency of switching power supplies and other high current applications. In energy storage applications, they are commonly used in energy harvesting, automotive, and biomedical devices.

Working Principle

Tantalum capacitors use a simple two-terminal design, where the resistor and the capacitor are connected in series. When a voltage is applied across the resistor and capacitor, the resistor absorbs the power from the voltage and the capacitor stores the energy. As the power is reduced, the capacitor releases the energy to the load. The capacitor’s capacitance is what determines how much energy is stored, and is related to the surface area of the tantalum pellet. As the capacitor reaches its capacity, the voltage across it begins to increase until it reaches a maximum voltage known as the rated voltage of the capacitor.

In addition to the rated voltage, each capacitor also has a maximum capacitance, which is related to the number of plates inside the capacitor. The plates are connected to the external electrodes, and when a voltage is applied across them, the plates carry the current. However, since the plates are made of a dielectric material, the current is heavily impeded, resulting in a decrease in the capacitance.

Tantalum capacitors are also used in electronic circuits to filter out high frequencies, such as power supply ripple or radio frequency interference. This is accomplished by connecting the capacitor to the ground terminal, which prevents the high frequencies from reaching the load. As a result, the capacitor acts as a low-pass filter, allowing only the lower frequencies to pass through.

Tantalum capacitors are also used in voltage-sensitive devices, such as motors, which require constant current supply in order to function. The capacitor helps to maintain a steady voltage level by absorbing excess current when it is higher than the rated voltage and releasing current when it is lower than the rated voltage. This helps to protect other components in the circuit from damage due to power surges or voltage spikes.

Overall, tantalum capacitors are highly useful in a variety of applications, due to their highly conductive nature, low expected losses, and high max capacity. Furthermore, they require minimal maintenance and offer stable performance. As such, they are invaluable components in many applications, from audio applications to energy storage.

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