T491C107M010ZT7280Z320

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T491C107M010ZT7280Z320 capacitors, also known as Tantalum capacitors, are among the smallest in size and highest in energy density in passive components available on the market. Tantalum capacitors can deliver more energy than most types of capacitors due to their ability to store more electrical charge than other types of capacitors and to their higher dielectric constant.

T491C107M010ZT7280Z320 capacitors are typically used in applications where very small size and high capacitance are needed and space is limited. Tantalum capacitors are also used in high frequency and power circuits, as well as for long-term energy storage for applications such as microprocessors and battery back-up applications. The high-temperature capabilities, corrosion resistance, low ESR, and longer life expectancy are other benefits of this capacitor type.

The primary application fields for these capacitors include medical equipment, communications equipment, and other high reliability, high temperature products. In medical equipment, Tantalum capacitors are used for their excellent temperature stability, their low inductance and low ESR for high speed applications, and their low profiile ability to fit on PCBs.

The working principles of Tantalum capacitors are based on the same principles as all capacitors: interchanging electrical charge between two metal plates. Tantalum capacitors use two plates, one plate made of a Tantalum metal and one/two plates of an oxide material. These plates are separated by a dielectric material – either a ceramic faced Tantalum oxide, or an electrolyte material. This dielectric material lies between the two plates and serves to separate the plates, allowing for an electrical charge to build up within the capacitor.

The capacitance of a Tantalum capacitor is defined by the area of the two plates, their separation and the properties of the dielectric material. The metallic plate is connected to the positive terminal and the oxide plate is connected to the negative terminal. When a voltage source is connected to the positive and negative terminals, electrons are drawn to the positive plate of the capacitor, while equal holes fill the negative plate. This change in electrical charge causes a voltage difference is created between the two plates.

When a circuit is connected across a tantalum capacitor and a current is introduced, the voltage across the capacitor will reduce, causing the charge to move through the capacitor and the current to flow through the circuit. This process is called charging and the current will continue to flow until the capacitors is charge. When the capacitor is fully charged, the voltage across it reaches a maximum, and the current stops flowing.

When the capacitor is then discharged, the voltage across it reduces until the voltage is equal to the voltage of the circuit. At this point, the current will flow back in the opposite direction, thus discharging the capacitor. This process is called discharging and repeats until the capacitor is completely discharged.

Overall, Tantalum capacitors are excellent components for applications where size and energy density are of the utmost importance. They are especially beneficial in high frequency and power circuits and in medical applications, where reliability and temperature stability are of the utmost importance.

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