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Aluminum Electrolytic Capacitors

Introduction

An aluminum electrolytic capacitor is a polarized capacitor consisting of two aluminum foils with a porous insulating spacer impregnated with an electrolyte and a paper wrap. One foil is etched to form a series of parallel strips, the other foil is solid and acts as the counter electrode. The electrolyte breaks down when a suitable voltage is applied to form a thin oxide film on the surface of the anode foil (strip) and small droplet is form on the surface of the counter electrode.

381LQ152M160J452 application field and working principle

The aluminum electrolytic capacitor381LQ152M160J452 is a kind of high-voltage and polymer aluminum electrolytic capacitor, suitable for power frequency circuits, high-frequency resonant circuits, motor start compensation, DC-link current smoothing and other occasions. Its voltage range is 0、1000V, temperature range is -55～105℃, capacitance range is 0.01μF～10000μF.

This high-voltageable aluminum electrolytic capacitor381LQ152M160J452 has a working principle as follows: after the low-pressure DC voltage is applied to the capacitor, the electrolyte decomposes and generates electrolysis. The anodic aluminum foil is reacted and a layer of solid electrolyte film is formed on its surface. The structure of the solid electrolyte film can be seen as an insulator. The oxide layer is equivalent to the insulation spacer between the two steel plates of the ordinary capacitor. If a high voltage is applied, the oxide layer is destructed and the capacitor is damaged.

381LQ152M160J452′s application includes power frequency circuits, high-frequency resonant circuits, motor start up compensation, DC-link current smoothing,comparison power supply and pulse circuits. For example, in power frequency circuit,381LQ152M160J452 can protect printed circuit board component circuits from the influence of transient voltage surge.

Conclusion

The aluminum electrolytic capacitor 381LQ152M160J452 is an ideal capacitor because it has a wide voltage range and capacitance range. The oxide layer generated by electrolyte decomposition is an insulator. The381LQ152M160J452 has the best temperature coefficient, voltage coefficient, endurance, long life and wide application in power frequency, high frequency resonant circuits, motor start-up compensation, DC-link current smoothing and other occasions.

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