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Tantalum capacitors are a type of electrolytic capacitor, which is made up of two conductive plates separated by a dielectric material, moistened by an electrolyte, and exhibiting a anode with a much thicker anode, usually made of tantalum metal. The T491D226M020AT7111 is a surface-mount tantalum capacitor, designed for surface mounting onto printed circuit boards or other electronic components. It features a capacitance of 22uF and operates between a voltage range of 20V to 63V.

Application Field and Working Principle

T491D226M020AT7111 are primarily used in DC applications, such as as power supplies, mobile phones, and computer devices. They are a great alternative to ceramic capacitors, as they have higher capacitance and insulation resistance, allowing them to store higher levels of energy. In addition, they offer superior surge voltage tolerance, making them ideal for high frequency switching applications.

The T491D226M020AT7111 works by forming a ‘dielectric’ between two plates of metal. The dielectric is an insulator, meaning that it prevents electrons from flowing between the plates. The amount of electrical charge, or capacitance, that can be stored on the plates is determined by the thickness of the dielectric and the area of the plates. As the thickness of the dielectric increases, the capacitance also increases.

When connected to a power source or other electronic component, electrons can be drawn from the dielectric and stored on one of the plates. The amount of energy stored is determined by the surface area and thickness of the dielectric, meaning that the amount of energy stored in a capacitor goes up with an increase in the capacitance. This stored energy can then be released in the form of an electric current when the capacitor is connected to a DC load.

The T491D226M020AT7111 has been designed with superior surge tolerance and insulation resistance. This means that it can handle short-term blasts of high-voltage surges, which may occur in AC/DC applications, such as large power switches, amplifiers and motor drives. The superior insulation resistance also means that it can handle very high levels of humidity and other environmental factors, making it well suited for use in a wide range of applications.

The T491D226M020AT7111 is also highly reliable and operates over a wide range of temperatures. It is a cost-effective device, and is designed to withstand even the harshest conditions, ensuring long service life. As such, it is an ideal choice for high volume production, due to its consistency and low cost.

In summary, the T491D226M020AT7111 is a surface-mount tantalum capacitor, designed for DC applications, such as power supplies, mobile phones, and computer devices. It offers excellent surge voltage tolerance and insulation resistance, making it well suited to a wide range of applications. It is highly reliable and cost-effective, making it an ideal choice for high-volume production.

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