MAL215812122E3

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Aluminum electrolytic capacitors (ALC), also commonly known as electrolytic capacitors, are electrical devices that store electrical energy in a form of electrostatic capability. They are made up of two or more conductive plates separated by an insulating material, usually an oxide film. The electrodes are electrically conductive and have a polarity, which is indicated by a positive sign.

The MAL215812122E3 is an aluminum electrolytic capacitors. It has a voltage rating of 10V, a capacitance of 47uF, and a tolerance of ±20%. Its current failure rating is 0.03A and its reactance is 45mΩ. It is moisture-proof and non-polar. The MAL215812122E3 features a long life, low leakage, and superior ripple ratings over other aluminum electrolytics.

Their main application fields are decoupling capacitors (for noise reduction), energy storage/hold-up capacitors (for power backup), and smoothing/filtering capacitors (for noise interference reduction). The MAL215812122E3 is suitable for these same applications, where its voltage, capacitance, and tolerance values are useful. It is especially characterized by its low leakage current and superior ripple rating, which makes it well-suited for use in decoupling, energy storage, and smoothing/filtering applications in high performance circuits.

The working principle of aluminum electrolytic capacitors is similar to other capacitors. A capacitor is an electrical component that stores charge in an electric field. That is, it accumulates electrons on one plate or conductive object, and separates them from the other plate or conductive object. This process creates an electric field between the two plates, allowing for the storage of electrical energy. In aluminum electrolytic capacitors, the electrical energy is stored on two aluminum foils that are separated by an electrolyte, usually an oxide film.

The electrolyte films have a polarized molecular structure; positive ions repelled by the negative electrode, the negative ions repelled by the positive electrode. This polarized structure allows current to flow through the conductive plates of the capacitor, forming a “capacitor unit” – a “closed loop” of electric current. When a voltage is applied to the capacitor, the conductive plates accumulate electrons, which accumulate on the foil opposite the applied voltage and build up a charge across the capacitor unit. As current accumulates on the capacitor plates, an electrostatic field forms between the two plates, and energy is stored in the form of an electrostatic charge.

The current leakage of aluminum electrolytic capacitors is a concern, and manufacturers have developed new films to reduce leakage. The MAL215812122E3 features lower leakage than other aluminum electrolytic capacitors, making it particularly suitable for high power and ripple current applications. Its superior ripple rating also gives it an advantage in noise reduction applications.

In conclusion, the MAL215812122E3 aluminum electrolytic capacitor is a reliable and effective device for energy storage and noise reduction. It has a number of useful characteristics, including low ripple ratings, low leakage current, long life, and higher voltage ratings. The working principle of aluminum electrolytic capacitors is that it allows current to flow through two conductive plates, creating an electrostatic field for energy storage. It is suitable for decoupling capacitors, energy storage/hold-up capacitors, and smoothing/filtering capacitors.

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