T86E476K020ESAL

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Tantalum capacitors are small, polarized capacitors characterised by their very high capacitance, low equivalent series resistance and small size. These properties make them perfect for use in power supplies filtering, motor control and other similar applications. The T86E476K020ESAL is one such capacitor, used in a broad range of concepts, and understanding the specifics of the device is important before using it in your next application.

The T86E476K020ESAL is a tantalum capacitor with a linear truncated shape and a capacity rating of 4.7μF ±10%. It has a maximum operating temperature of 85°C, a voltage rating of 25Vdc and a low equivalent series resistance (ESR) of 3mΩ (maximum). It also offers 1000-hour endurance at 70°C and 10,000-hour endurance at 85°C.

In terms of application fields, the T86E476K020ESAL is well-suited for switching power supplies, DC-DC converters, general purpose voltage regulators, SMPS (switch mode power supply) filtering, motor control, low-frequency AC filtering and consumer-level regulators. This makes it a versatile choice of capacitor for a range of projects and circuits, as it offers reasonable capacitance, voltage and endurance in a very small form factor.

The T86E476K020ESAL works on the same principal as all other capacitors; an electric charge is stored on one plate in the device, while the other plate remains uncharged. When external voltage is applied, a current flows between the plates, creating an electric field and storing energy in the capacitor. This charge can then be released by switching off the external voltage, allowing a current to flow in the opposite direction, and the stored energy to be released (in this case, as current).

The construction of the T86E476K020ESAL is made up of an anode, which is a conductive metallic plate (in this device, usually made from tantalum), a cathode (the other plate) which is an oxidized layer of the material used in the anode, a spacer (usually a piece of plastic) and a dielectric (also usually a piece of plastic). When a voltage is applied by external means, the anode and cathode plates are charged up and the dielectric medium prevents current from flowing, and thus retains the energy until released.

The T86E476K020ESAL is designed to offer a versatile choice of capacitor for a range of applications, offering reasonable capacity, voltage and temperature ranges, as well as relatively low ESR. Understanding the construction and principle of the device is important for getting the most out of the capacitor in any given application.

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