EEV-FK1V220R

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Aluminum electrolytic capacitors are widely used in electronic products due to their good stability, small size and low cost. The EEV-FK1V220R is a popular type of aluminum electrolytic capacitor, and its application field and working principle are described in detail below.

Application Field of EEV-FK1V220R

The EEV-FK1V220R is essentially a type of polarized aluminum electrolytic capacitor with a non-solid electrolyte. This type of capacitor is typically used in general electronic circuits, such as power supplies, amplifiers, signal mutation, and frequency control. As the output surge current of EEV-FK1V220R is significantly greater than most other capacitor types, it is often used in place of multiple resistors to create a low-pass filter. The EEV-FK1V220R is also used as a smoothing capacitor in refined power supplies, as it can handle higher currents and stabilize the output voltage. The EEV-FK1V220R is available in various temperatures, ranging from -25° C to +85° C.

Working Principle of EEV-FK1V220R

EEV-FK1V220R is composed of two metal foils that are insulated with a dielectric layer. One of these foils is treated with an oxide coating of metal. When a DC voltage is applied, electrons are attracted to the oxide from the anode and form a thin layer of oxide on its surface. This thin layer is called an electrical double layer and acts as a barrier that reduces the resistance across the capacitor. The second foil is connected to the negative terminal and acts as the cathode, thus forming the polarized aluminum electrolytic capacitor. The dielectric layer that insulates the two foils allows the capacitor to have a large capacitance value in a small package.

The EEV-FK1V220R is able to store and release electrical energy in a controlled manner. When the applied voltage reaches its rated values, a current builds up in the capacitor, turning the entire capacitor into an inductor. This additional inductor current induces a magnetic field that increases the self-inductance of the capacitor and decreases its effective capacitance. This helps to reduce the risk of the capacitor failing, as the excessive current is prevented from passing through it.

As the voltage approaches its peak value, more electrons from the anode oxide layer move into the cathode. When the maximum possible amount of electrons has reached the cathode, the capacitor is considered to be fully charged. After the voltage drops below the peak value, the electrons will return to the anode oxide layer and the process will repeat itself, allowing the capacitor to repeatedly release and store electrical energy.

In conclusion, the EEV-FK1V220R is a popular type of polarized aluminum electrolytic capacitor that is widely used in general electronic circuits. Its application field includes power supplies, amplifiers, signal mutation, and frequency control. The working principle of the EEV-FK1V220R involves the movement of electrons between the anode and cathode resulting in the storage and release of electrical energy.

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