400MXC100MEFCSN22X30

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Aluminum Electrolytic Capacitors: 400MXC100MEFCSN22X30 application field and working principle

Aluminum electrolytic capacitors, also known as electrolytic capacitors, are one of the most commonly used components in the electronics industry. Among them, the 400MXC100MEFCSN22X30 model is mainly used in the applications related to high performance, such as television and digital audio equipment, computer and telecommunications boards, instrumentation and meters. Their working principle is based on the phenomenon of an asymmetric rectification at the oxides of aluminum. Its can store energy between two electrodes in the form of electric field.

A 400MXC100MEFCSN22X30 aluminum electrolytic capacitor consists of a casing made of aluminum foil, a separator saturated with an electrolyte solution and two electrodes, namely the cathode, which is a solid aluminum, and the anode, which is coated with an oxide layer. The separator, electrolyte solution and foil create a three-tier sandwich structure. When an alternating current is applied to the capacitor, the oxide layer on the electrodes forms a barrier that only allows the current to flow in one direction. This phenomenon is known as asymmetric rectification.

The size of the 400MXC100MEFCSN22X30 aluminum electrolytic capacitor depends on the amount of energy that it can store. Generally speaking, a larger size will store more energy. The capacitance is usually in the form of microfarad (μF) and is expressed as UF, such as 100μF. The capacitance determines the effectiveness of the capacitor in responding to high frequency signals, as larger values provide more dampening effect.

The working principle of aluminum electrolytic capacitors lies in the electrochemical reaction between the electrodes. When a voltage is applied, ions from the electrolyte move towards the corresponding electrode to create an electric double layer at each electrode-electrolyte interface. When the voltage is removed, the electric double layer is split into its component ions, which are then recombined in the electrolyte. This process, combined with the porous layer of oxide, stores energy in the electric field between the two electrodes.

The 400MXC100MEFCSN22X30 aluminum electrolytic capacitor is widely used in high performance applications such as television and digital audio equipment, computer and telecommunications boards, instrumentation and meters,etc. Its advantages include low cost, high capacitance and tolerance, good temperature characteristics, a wide range of operating temperatures, and low current leakage. Its main disadvantage is its susceptibility to failure in very high voltage circumstances. Therefore, these capacitors must be handled with care and appropriate insulation must be used to prevent possible failures.

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