MAL202126221E3

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Aluminum Electrolytic Capacitors

The MAL202126221E3 is one type of aluminum electrolytic capacitor. It is a cylindrical two-pin component that is commonly used in electronic circuits, particularly in power supplies.

Aluminum electrolytic capacitors are a type of electrochemical capacitor. They are made up of two metallic electrodes, separated by an electrolyte, usually an oxide film. The oxide serves as an insulating layer, while the two electrodes act as conductors. This structure allows them to store electrical energy when connected to a voltage source.

The MAL202126221E3 consists of an aluminum foil anode, an insulating paper sleeve, and an aluminum foil cathode. The anode and cathode are etched with a thin electrolyte layer, which acts as the dielectric. The two electrodes are connected together by a crimp or soldering. This connection creates a very low internal resistance, giving the capacitor its high capacitance.

The MAL202126221E3 has a capacitance of 2.2uF, a voltage rating of 25V, and is rated for a maximum temperature of 55 degrees Celsius. The capacitor is perfect for applications that need a high capacitance in a small package. It is also used in consumer electronics, medical equipment, and industrial automation.

The primary application for the MAL202126221E3 is power supply filtering in consumer electronics. It is used to filter out high frequency noise and reduce ripple in the power supply, thus improving reliability and performance. The capacitor can also be used in DC-DC converters, AC-DC converters, switch mode power supplies, and any other application requiring transient current or power inversion.

The working principle of an aluminum electrolytic capacitor is simple. When a voltage is applied across the two electrodes, the electric field creates an ionic current which flows through the electrolyte. This current causes a positive charge to accumulate on one side of the capacitor, and a negative charge on the other. This creates an electrostatic field between the electrodes, which acts as the dielectric. This field stores the charge, which can later be released when the electric field is removed.

The MAL202126221E3 is an important part of today’s electronic circuits. Its high capacitance, small size and low cost make it a versatile and reliable choice for voltage filtering and power inversion applications.

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