T491B105K035AT4053

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T491B105K035AT4053 Application Field and Working Principle

T491B105K035AT4053, also known as Tantalum Capacitors, are a type of electrolytic capacitor that feature a tantalum pellet as an anode, coated with an insulating oxide layer as a dielectric, and a liquid or solid electrolyte, typically gel, as a cathode. They are ideal for use in decoupling and filtering applications, due to their low ESR, small size and reasonable cost, as well as their high volumetric efficiency.

Application Field

T491B105K035AT4053 Tantalum Capacitors are commonly used in a wide range of applications, from consumer electronics to aerospace. Common applications include power supplies, audio-video devices, hand-held devices, medical devices, automotive electronics, and other general-purpose electronics.

In power supplies and audio-video devices, T491B105K035AT4053 Tantalum Capacitors are used for their low ESR, for focusing and shaping energy in the wave form and for providing low-noise audio power. In hand-held devices and medical devices, they are ideal for their small size, as well as their high volumetric efficiency. In automotive electronics, they are used due to their reliability and high temperature characteristics. And in other general-purpose electronics applications, they are used due to their reasonable cost.

Working Principle

T491B105K035AT4053 Tantalum Capacitors are polarized capacitors, which means they must be connected in the correct direction when used in circuits. Electrons flow in the opposite direction of the positive current in the anode, and the electrolyte acts as a mediator for the electrons to move from the anode to the cathode. The charged ions which are ions with a charge (positive or negative) are attracted to the electrodes, forming a layer of static charge, which is called a dielectric layer. This dielectric layer keeps the charge stored in the capacitors.

When a voltage is applied to the capacitor, a stored charge is built up on the dielectric. This stored charge can be used to supply an extra current on demand. As with all capacitors, this stored charge can only be held for a certain amount of time until it is discharged. When the voltage is removed, the stored charge is lost, and the capacitor will need to be recharged.

T491B105K035AT4053 Tantalum Capacitors are ideal for decoupling and filtering applications due to their low ESR and high volumetric efficiency. Their low ESR allows them to focus and shape energy in the wave form, providing low-noise audio power. They also have reasonable cost, making them a suitable choice for general-purpose electronics applications.

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