ESK477M6R3AE3AA

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Aluminum Electrolytic Capacitors

The ESK477M6R3AE3AA is an aluminum electrolytic capacitor. It is a fixed capacitor whose capacitance value cannot be adjusted, and is non-polarized meaning it can be connected either way round in an circuit. Capacitors are widely used in electronic circuits to block DC signals, and as filters for AC signals.

Application Field

Aluminum electrolytic capacitors are widely used in a number of different applications, including power supplies, AC motor control, and audio-frequency electric-field communication. In power supplies, the capacitors are used to minimize AC ripple noise, so the DC output is clean and stable. In AC motor control systems, they are used to control motor speed, as AC signals can be adjusted to speed up or slow down the motor. Finally, in audio-frequency electric-field communication, electrolytic capacitors are used to control the resonance frequency of an oscillator, allowing signals to be transmitted at the desired frequency.

Working Principle

An aluminum electrolytic capacitor is composed of two aluminum foils coated with an oxide layer, along with an electrolyte. When connected to a voltage source, the electric field created by the voltage causes electrons to be attracted to one of the aluminum foils, forming an electric charge. This creates a capacitance, which is defined as the ratio of the charge on one plate of the capacitor to the voltage applied to the other plate.

The capacitance of the already charged capacitor can be adjusted by changing the applied voltage. However, increasing the voltage also increases the electric current, which increases the rate at which oxygen is generated by the electrolyte. Eventually, the electrolyte will be depleted, causing the capacitance to decrease, meaning the capacitor must be replaced.

Aluminum electrolytic capacitors are used in a wide variety of applications, from power supplies to AC motor control, due to their ability to store and adjust electric current. The ESK477M6R3AE3AA is a non-polarized capacitor that can be connected either way round and offer reliable performance for any application.

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