MAL205014473E3

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors, or simply electrolytic capacitors (abbreviated e-cap) are capacitors which use an electrolyte to achieve a larger capacitance than other capacitor types. They are particularly useful in relatively high-current and low-frequency electrical circuits, and very widely used. They are found in electric power supplies, computers, TVs, and many other electronic items. This article will discuss the application field and working principle of the popular model MAL205014473E3.

Application Field

The MAL205014473E3 is an excellent choice for applications that demand high ripple current of up to a maximum of 1900 mA. Depending on its properties, the aluminum electrolytic capacitor has a range of applications – from power projection source to memory chip circuits. Its high capacitance-voltage ratio makes it a great choice for large bulky circuits as it requires less components while still able to handle higher working voltages, as high as 50V.

But that isn\'t all; as with all other electrolytic capacitors, the aluminum electrolytic capacitor also has a high temperature tolerance, and can work safely at temperatures as low as -55oC.

Working Principle

An aluminum electrolytic capacitor contains two pieces of aluminum foil, which acts as the terminals of the capacitor. The two pieces are separated by an electrolytic paper, on which a layer of oxide film is formed. The oxide layer acts as the dielectric layer, which increases the capacitance. The terminals of the aluminum electrolytic capacitor are connected to the external circuit by two lead wires. When a voltage is applied across the electrolytic paper, a current is generated between the two pieces of aluminum foil.

The current generated between the two aluminum pieces forms an electric field, which is responsible for generating the capacitance. This capacitance is the total charge that can be stored in the capacitor, and it increases as the voltage across the capacitor increases. The larger the voltage, the greater the capacitance, and the higher the current that can be stored.

The MAL205014473E3 also benefits from self-healing properties, thanks to the electrolytic paper it employs as a dielectric. The electrolytic paper can handle more over voltage in the case of a short circuit, and its self-healing property ensures that the capacitor can recover itself when the voltage across it is reduced.

Conclusion

In conclusion, aluminum electrolytic capacitors such as the MAL205014473E3 are excellent choices for power supplies, computer memory chips, and other high current and low frequency electrical circuits. Their wide capacitance-voltage ratio and self-healing property make them preferable to other capacitor types, as they require fewer components while still providing reliable performance. Furthermore, they are great for large bulky circuits, thanks to their high temperature tolerance and ability to work in harsh environmental conditions.

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