MLS491M200EA0C

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Aluminum electrolytic capacitors are widely used due to their reliable electrical performance, wide operating temperature range, and long life. The MLS491M200EA0C is a popular aluminum electrolytic capacitor manufactured by Vishay Intertechnology, capable of operating over a wide range of voltages, temperatures and frequencies. In this article, we shall discuss its application field and working principle.

Application

The MLS491M200EA0C is an aluminum electrolytic capacitor primarily used for power supplies and other applications requiring relatively high current pulses and/or voltage-control components in consumer electronic devices, lighting fixtures, as well as in industrial equipment and lighting systems. Additionally, these capacitors can be used in automated switching systems and surge suppression equipment.

The MLS491M200EA0C is a polarized capacitor, meaning that it is designed such that the current can only flow in one direction (the anode). This feature is useful in some power supplies and circuits where polarity must be preserved. Furthermore, the aluminum electrolytic capacitors have low ESR (Equivalent Series Resistance), which allow for exceptional DC filtering, high-ripple current capabilities, and low levels of harmonic distortion.

Working Principle

The working principle of the MLS491M200EA0C aluminum electrolytic capacitor is based on the Faraday’s Law of electrolysis. An electrolytic capacitor is a two-terminal electrical component used to store electric energy. It consists of two metal plates separated by a thin insulating dielectric material and an electrolyte, which is the medium that provides the conductive path between the two metal plates known as electrodes. The electrolyte is a conductive paste that enables a current to pass through when a voltage is applied across the terminals.

When a voltage is applied across the two electrodes of the electrodes, the positively charged ions travel towards the negative or cathode electrode, and the negatively charged ions travel towards the positive or anode electrode. The ions react with the electrode surfaces and create a thin oxide layer thereupon. This layer acts as a dielectric material between the two charged electrodes and serves to store electrical energy when the voltage is removed. This process, known as polarization, increases the capacitance of the electrolytic capacitor.

The MLS491M200EA0C is a type of non-polarized aluminum electrolytic capacitor, differing from the polar type capacitors in terms of its design. The device does not have a dielectric oxide layer, which allows a greater range in terms of voltage, current, and temperature. As such, the device can be used in various different power supplies, high-voltage applications and other circuits where the capacitance may be needed to be changed over time.

Conclusion

The Vishay MLS491M200EA0C aluminum electrolytic capacitor is a non-polarized capacitor suitable for a wide range of applications, such as power supplies, surge protection and voltage control in industrial applications. The working principle of the device is based on Faraday’s Law of electroylisis, which states that when a voltage is applied across two metal plates, the positively-charged ions travel towards the negative electrode and negatively charged ions travel towards the positive electrode. This reaction creates a thin oxide layer on the surface of the electrodes, allowing the device to store electrical energy when the voltage is removed.

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