T491D686K010AT4153

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T491D686K010AT4153 is a type of tantalum capacitor. It is a type of electrochemical capacitor, which relies on the oxidation and reduction reactions to store and release electrical energy. It uses porous tantalum anode and electrolytic cathode to form capacitor. The working principle of this type of capacitor is based on the ability of the oxidized porous tantalum anode to store electric charge. Its application field includes the electronic products such as computers, audio products and operational amplifiers.

The tantalum capacitor includes two main types: wet tantalum capacitor and dry tantalum capacitor. T491D686K010AT4153 belong to the latter one, which are more popular to be used in non-critical applications.

Compared with traditional capacitors, the biggest characteristic of tantalum capacitors is the capacitance values they can generate. The typically lower ESR of tantalum capacitors allows them to generate a higher capacitance value in a given package size.Also, they are less voltage-sensitive than other kinds of capacitors, so they can be used in higher voltage circuits without the need for additional components to reduce the voltage.

The T491D686K010AT4153 utilizes an anode composed of a porous, insoluble Niobium, Tantalum or Niobium-Tantalum material. This porous anode is then soaked in an electrolyte solution, (typically a mineral-acid solution) and an electrolytic cathode is inserted into the anode. This assembly is then placed in a metal casing with terminals, making it a wet tantalum capacitor. The electrolyte swells up the porous anode, making it even more effective.

By connecting one lead of the tantalum capacitor to the anode and the other lead to the cathode, the capacitor can store electric charge for a period of time, making the circuit easier, so that the circuit can pass more current when it is needed. Thus, this type of capacitor is especially suitable for applications where voltage has to be changed abruptly, or in discrete electronic components and analog circuits.

To sum up, the T491D686K010AT4153 is a type of tantalum capacitor, which has a porous tantalum anode and electrolytic cathode. Due to its higher capacitance value, lower ESR and less voltage-sensitivity, it is especially suitable for applications where voltage needs to be changed abruptly and in analog circuits.

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