MAL210218102E3

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• Aluminum Electrolytic Capacitors
• MAL210218102E3 application field and working principle

The MAL210218102E3 aluminum electrolytic capacitor is a high-quality electrolytic capacitor, a commonly used discrete component in the electronics industry. It is made of an aluminum foil sheet as the cathode combined with a special electrolyte solution as the anode, creating a convenient and compact package to store a large amount of electrical energy. This type of capacitor is ideal for use in industrial, military and aerospace applications. It is used in power supplies, audio output stages, and other applications that require high levels or capacitance or extremely high temperature resistance.

The working principle of MAL210218102E3 aluminum electrolytic capacitor is based on electron migration. In the capacitor, the aluminum foil acts as the positive electrode and the electrolyte acts as the negative electrode, creating an electric field to enable electron migration from the aluminum foil to the electrolyte. This migration of electrons is completed through an ion-migration process, where the electric field makes the ions within the electrolyte to move continuously. In between the two electrodes, a charge balance is created, forming a capacitor cell. When a voltage is applied to the aluminum foil, the electrons in the electrolyte are attracted to the foil and the positive ions in the electrolyte are pushed away from the foil. This creates a layer of negative charge on the surface of the aluminum foil.

The capacitance of the MAL210218102E3 is determined by the area of the aluminum foil and the thickness of the electrolyte. The capacitance will increase as the thickness of the aluminum foil increases and the dielectric constant of the electrolyte increases. Additionally, this type of capacitor has an extremely high working temperature range, which is perfect for industrial applications. It has a rated temperature range of -55 °C to +125 °C, making it one of the few capacitors that can operate in such extreme temperature conditions.

The MAL210218102E3 aluminum electrolytic capacitor has a long life expectancy, offering 2,200 hours at 125 °C. It also features high ripple current capability and low ESR (Equivalent Series Resistance), providing high stability and reliable performance. Due to its high temperature range and high ripple current capability, the MAL210218102E3 is an excellent choice for high power applications such as DC/DC converters, inverters, and chargers. It is also suitable for high ripple noise decoupling requirements in critical analog and digital low voltage applications.

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