MAL212364339

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors, referred to as electrolytic capacitors, use a comparatively large sheet of aluminum for the capacitor plates, foil stamped with a pattern, which increases the amount of active surface on the plates. An electrolyte, usually a form of liquid acid, saturates the paper and forms a porous dielectric within the metal sheet, which creates a thicker and more effective dielectric. The result is generally a capacitor with a much higher-than-average capacitance rating and a significantly greater working voltage than most other capacitors.

MAL212364339 Application Field and Working Principle

MAL212364339 is an aluminum electrolytic capacitor from the well-known components manufacturer Murata. Its application fields are in the power circuits, backlight circuits, and switching power supplies. This product comes with an ultra-small body size(1.2mm×1.7mm) and large capacitance ratings, and is perfect for small space applications.

The working principle of this product is based on a two-electrode system. Four anode terminals are created by punching two thin aluminum foils, which are then put in an electrolyte together. The other part of the system is formed by a paper dielectric with a topcoat. The topcoat forms a barrier between the two electrodes and prevents leakage.

The two aluminum electrodes become polarized by the external voltage, and couples the electric field to the electrolyte. This phenomenon builds up two charges, one positive and one negative. When an external electrical field is applied to the circuit, the polarization of the molecules in the electrolyte reverses, and creates the capacitance. This phenomenon is what makes aluminum electrolytic capacitors useful for applications, such as power conversion, motor control, and switching power supplies.

Conclusion

The MAL212364339 is an aluminum electrolytic capacitor from Murata, which offers an ultra-small body size and a higher capacitance rating than most other capacitors of this type. It is ideal for applications in power circuits, backlight circuits and switching power supplies. The working principle of this product is based on a two-electrode system where two aluminum foils are filled with electrolyte, while a paper dielectric with a topcoat forms the other part of the system. The electric field created by the external voltage polarizes the molecules in the electrolyte and generates the capacitance, which provides the necessary current for applications such as power conversion, motor control, and switching power supplies.

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