T491D226K025AS Capacitors

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T491D226K025AS is one of many types of Tantalum capacitors. A tantalum capacitor is a type of electrolytic capacitor, a component of electronic circuits. It consists of two electrodes -- the anode and the cathode -- separated by an insulating electrolyte. The tantalum capacitor is well-suited for applications requiring both high capacitance and small physical size, such as high-value decoupling capacitors in personal computers and phone lines, circuit filters, tuning circuits.

Tantalum capacitors offer advantages over other types of capacitors. The tantalum core is highly doped, so it has a very high electrical conductivity. This allows for a very thin layer of insulating electrolyte material. As a result, tantalum capacitors are much smaller than other varieties of capacitors. They come in a variety of shapes, including cylindrical and flat planar.

In operation, a tantalum capacitor has two electrodes, separated by an insulating layer of electrolyte. The electrodes and electrolyte are encapsulated in an anode body, and the whole capacitor is enclosed in a ceramic, plastic, rubber, or acrylic body.

The anode and the cathode both have a positive electrical charge. When a positive current is applied to the anode, electrons flow from the anode to the cathode, creating a negative charge on the cathode. This creates an electric field between the two electrodes, and thus an electrical potential.

When a voltage is applied, electrons flow from the anode to the cathode. This flow causes ions to pass through the electrolyte, creating a circuit with a voltage across it. This voltage can then be stored in the capacitor, and will be present when no current is flowing.

The dielectric properties of the electrolyte layer provide a high capacitance value. This is often quantified in Farads (caps). The Farad is the unit used to measure the amount of charge or energy stored in a capacitor. It is equal to 1 coulomb per volt.

The other main specification to know about a tantalum capacitor is the voltage rating. This is the maximum operating voltage of the device and must be observed at all times. Exceed the voltage rating, and the device will fail.

T491D226K025AS is a particular type of tantalum capacitor. It is 25 Volt, 2.2 uF, 5% polarized, with a 0.025" lead spacing and a standard commercial type of temperature coefficient. This device is ideal for applications such as high-value decoupling capacitors in personal computers and phone lines, circuit filters, and tuning circuits.

In conclusion, the T491D226K025AS is a type of tantalum capacitor designed for use in sensitive electronic applications. It combines a high capacitance with a small size, making it a great choice for circuit designers looking to minimize space while maximizing performance. It is important to know the voltage rating of the device, as exceeding it will lead to its failure.

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