EEV-FK1A222Q

Aluminum electrolytic capacitors are among the most widely used capacitors in the world. They are used in everything from consumer electronics to heavy machinery and industrial applications. The EEV-FK1A222Q is an aluminum electrolytic capacitor designed for use in a variety of applications. This article will discuss the characteristics of this capacitor, its application field and working principle.

Characteristics

The EEV-FK1A222Q is a polarized, voltage-dependent capacitor with a range of 5 to 35 volts. It is a 0.22uf aluminum electrolytic capacitor with a rated ripple current of 2.2A DC. It also has a maximum operating temperature of 105°C and an 85°C rated temperature. This capacitor is suitable for an operating frequency ranging from 10 to 100 kHz. It has a capacitance tolerance of ±20%, and the rated dissipation factor (D.F.) is 0.30 @ 1kHz.

Application Field

The EEV-FK1A222Q capacitor is often used in pulsed high voltage, audio, and power supply circuits. It also finds application in magnetic field measurement applications, such as TV cameras, MRI systems and scientific instruments. The capacitor is also suitable for snubber and filter circuits, liquid level control systems, and power factor correction. Additionally, they are used in control systems, ballast applications, and switching power supplies.

Working Principle

The capacitor works in a similar way to other capacitors. Inside the capacitor, there is a layer of aluminium oxide film that serves as the dielectric. This oxide film is created when the aluminium foil and the electrolyte are combined. When a voltage is applied to the capacitor, the oxide film reduces or attenuates the current that is flowing to the capacitor. This allows the capacitor to perform its function as a filter which blocks current from passing through.

As the voltage increases, the oxide film becomes thinner and thinner, compromising the capacitor\'s ability to filter out current. This is why the EEV-FK1A222Q capacitors have a maximum operating voltage of 35V, beyond which the dielectric could become damaged. Furthermore, the capacitor also has an internal resistance, which is usually very small. This resistance helps to control the current and prevents it from exceeding the rated ripple current of 2.2A.

Conclusion

The EEV-FK1A222Q aluminum electrolytic capacitor is a versatile component suitable for a variety of applications. It has a range of 5 to 35 volts, a capacitance of 0.22uf and a maximum operating temperature of 105°C. This capacitor has a wide range of uses, from consumer electronics to medical equipment and power factors correction, due to its ability to filter out current while still permitting voltage to pass through. The working principle behind this capacitor involves the use of an aluminium oxide film as the dielectric, which is created when the aluminium foil and electrolyte are combined. This dielectric attenuates the current and allows the capacitor to perform its filtering function.