EEV-FK1J4R7R

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Aluminum electrolytic capacitors are broadly used in power electronics applications due to their high capacitance to volume ratio. The EEV-FK1J4R7R is an advanced aluminum electrolytic capacitor that is primarily used in power electronics applications. This capacitor is specially designed to handle large peak currents, operate over wide temperature ranges, and deliver excellent high frequency performance.

Construction and Design

The EEV-FK1J4R7R capacitor is constructed using an anodized aluminum canister and two solid lead-free terminals. It has an aluminized steel sheet as a top wall and a core of oxidized aluminum foil. This capacitor is sealed with electrolytes and its surface is protected by a coating of plastic. Overall, the capacitor is highly compact in size and occupies less space, making it ideal for use in electronic circuits.

Working Principle

Aluminum electrolytic capacitors are devices that store energy in an electric field. The EEV-FK1J4R7R capacitor works on the principle of electrolytic action, which occurs when electricity is passed through a conductor immersed in an electrolyte or a solution that can conduct electricity. This capacitor consists of two aluminum foils that are rolled up and pressed together to create a “cell”. One side of the cell is coated with anodized aluminum oxide, which acts as an insulator. The other side of the cell is then filled with electrolyte, which serves as the medium of transfer for the electric current. When a voltage is applied across the terminals, the electric current passes through the electrolyte and causes a charge to be stored on both the aluminum oxide and the aluminum foil. This charge creates an electric field between the two and results in the formation of a capacitance. The capacitance can be varied by altering the amount of charge stored on the aluminum oxide and the aluminum foil.

Application Field

The EEV-FK1J4R7R capacitor is used in a wide variety of power electronics applications such as motor control, instrumentation, measurement, and power supplies. It is capable of handling large peak currents and is designed to operate over a wide temperature range. It also offers excellent high frequency performance, making it ideal for use in switching power supplies. The capacitor is also used in light ballasts, industrial automation, and process control.

Advantages

The EEV-FK1J4R7R capacitor is an advanced aluminum electrolytic capacitor that offers many advantages over other types of capacitors. Its ability to handle large peak currents makes it ideal for use in power electronics applications. It also has a low ESR, which helps to reduce losses in the circuit. Furthermore, the capacitor is designed to operate over a wide temperature range and offers excellent high frequency performance.

Disadvantages

The main disadvantage of the EEV-FK1J4R7R capacitor is its limited temperature range. It is not suitable for use in extreme temperature environments, such as vehicle applications and environments that experience a wide range of temperatures. Additionally, it is more expensive than other types of capacitors, making it less appealing for some applications.

Conclusion

The EEV-FK1J4R7R is an advanced aluminum electrolytic capacitor that is primarily used in power electronics applications. Its ability to handle large peak currents, operate over wide temperature ranges, and deliver excellent high frequency performance makes it ideal for use in switching power supplies, instrumentation, motor control, and other applications. While it offers many advantages, such as a low ESR and high capacitance, it has one major disadvantage, which is its limited temperature range.

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