SMG16VB221M6X11LL

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Aluminum electrolytic capacitors are widely used energy storage components in the production and operation of electrical and electronic equipment. They are characterized by large capacitance, small size and large withstand voltage. SMG16VB221M6X11LL aluminum electrolytic capacitor belongs to high voltage aluminum electrolytic capacitor. This paper mainly introduces the application field and working principle of SMG16VB221M6X11LL aluminum electrolytic capacitor.

1. Application Field of SMG16VB221M6X11LL Aluminum Electrolytic Capacitor:

SMG16VB221M6X11LL aluminum electrolytic capacitor is a high-voltage capacitor, mainly used in secondary winding of power transformer, power electronic switching device, charging circuit, filtering circuit and resonance circuit. It is mainly used in high voltage inverter, TV transmitter, high voltage motor speed regulating motor, high frequency inverter, high frequency welding machine, high frequency oven, electron tube, harmonic suppression in electricity industry, high frequency power amplifier, microwave communication system, filtering of high voltage input of instrument and various high voltage high frequency power transmission and transformation. Due to its excellent performance, SMG16VB221M6X11LL aluminum electrolytic capacitor can be used in high-grade TV transmitting devices.

2. Working Principle of SMG16VB221M6X11LL Aluminum Electrolytic Capacitor:

SMG16VB221M6X11LL aluminum electrolytic capacitor belongs to the high voltage aluminum electrolytic capacitor. The working principle of aluminum electrolytic capacitor is mainly realized by the thin aluminum oxide film formed on the surface of the aluminum foil electrode, the electrolyte and the compression of the dielectric. The electrode proximity and edge effect lead to a decrease in effective dielectric constant of the capacitor, making the capacitor suitable for use in high-voltage circuits.

The aluminum electrode of the aluminum electrolytic capacitor is coated with an insulating aluminum oxide (Al2O3) film. When the capacitor is installed, a part of the electrolytic solution will penetrate into the capacitor to wet the insulating film of the aluminum electrode similarly. When the capacitor is in operation, the positive and negative electrodes are separated by the insulation film, and the positive and negative ions in the electrolyte move to the two electrodes to form a capacitor. This yields a capacitance value that depends on the thickness and area of the aluminum oxide film.

The aluminum oxide film of the aluminum electrolytic capacitor has high resistance to fatigue. When the capacitor is working, the layer of aluminum oxide film on the electrodes is always in contact with positive and negative ions in the electrolyte, which can effectively balance the voltage between the electrodes, resist the breakdown of the internal insulation, and ensure the reliable insulation between the electrodes of the component. Thus, the aluminum electrolytic capacitor can obtain excellent capacity, low loss and good surge resistance.

In the process of use, the aluminum electrolytic capacitor will gradually age. With the lengthening of the external working time, the electrical capacity of the storage capacitor will gradually decrease, and the leakage current will be gradually increased. Therefore, attention should be paid to monitoring performance during the process of use. When the electrical performance exceeds the specified level, timely replacement shall be made.

In summary, SMG16VB221M6X11LL aluminum electrolytic capacitor is a kind of high voltage aluminum electrolytic capacitor. It is mainly used in high voltage transformer secondary coil, charging circuit, filtering circuit and oscillation circuit. Its main working principle is realized by the formation of thin aluminum oxide film on the surface of aluminum foil electrode, the electrolyte and the compression of the dielectric. It has excellent electrical performance, low loss and good surge resistance, and can be used in high grade TV transmitting devices.

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