420MXG180MEFC20X45

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are electronic components, mostly in the form of cylindrical or rectangular structures, with two electrical connections. They are widely used in power sources, signal processing, and communication circuits as essential components in many kinds of electrical and electronic products.

The 420MXG180MEFC20X45 aluminum electrolytic capacitor is an axial-lead aluminum electrolytic capacitor with a voltage rating of 420 VDC and a capacitance of 180µF ±20%. It is suitable for use in AC line-filtering applications and can be used in applications such as power supplies, circuit protection, and motor starters.

Application Field

The 420MXG180MEFC20X45 aluminum electrolytic capacitor is mainly used for AC line-filtering applications. Common applications include:

• Power supplies: used in power supply circuits to enhance performance and stability.
• Circuit protection: used to reduce the effect of voltage and current changes on the circuit.
• Motor starters: used to ensure the smooth and safe operation of motors.
• Other: can also be used in high-power electronic products for cooling and noise reduction.

Working Principle

The 420MXG180MEFC20X45 aluminum electrolytic capacitor works by forming an electric double layer on the surface of a thin oxide layer grown on the anode electrode. When an electric field is applied, positive ions and negative ions accumulate on the surface of the anode and cathode, respectively, forming a separated double electrical layer and forming a capacitor.

The capacitance of the aluminum electrolytic capacitor is determined by the area of the electrode plate, the distance between the two plates, and the type and nature of the electrostatic insulating medium. The larger the area of the electrode plate, the shorter the distance between the two plates, and the better the electrostatic insulating medium, the higher the capacitance of the capacitor.

The aluminum electrolytic capacitor has a larger volume, higher capacity, and low cost compared with other capacitors, so it is widely used in various electronic circuits.

Conclusion

The 420MXG180MEFC20X45 aluminum electrolytic capacitor is an axial lead aluminum electrolytic capacitor with a voltage rating of 420 VDC and a capacitance of 180µF ±20%. It is mainly used for AC line-filtering applications such as power supplies, circuit protection, motor starters, and other high-power electronic products for cooling and noise reduction. It works by forming an electric double layer on the surface of a thin oxide layer grown on the anode electrode, and its capacitance is determined by the area of the electrode plate, the distance between the two plates, and the type and nature of the electrostatic insulating medium.

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