25YXF1000MEFCG412.5X20 Capacitors

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are widely used in various electronic and electrical devices due to their low cost and high capacitance. The 25YXF1000MEFCG412.5X20 is an aluminum electrolytic capacitor produced by a Chinese manufacturer, which is capable of withstanding high voltage, high temperature and high pulse current loads.

With a volumetric and weight rating about 25YXF1000MEFCG412.5X20, this type of capacitor has a maximum frequency of 18kHz, a current rating of 17A, a voltage breakdown of 600V and up, a maximum operating temperature of +105°C and an insulation resistance at 0Vdc of 10,000MΩ. This capacitor also has a capacitance of 1µF and a temperature coefficient of -8mv/°C.

The 25YXF1000MEFCG412.5X20 capacitor is used in the various applications, such as AC/DC power supplies, UPS systems, DC/DC converters, energy-saving lighting, lighting systems, motor controls and PP products. To understand the application field and working principle of 25YXF1000MEFCG412.5X20, we first need to understand what an aluminium electrolytic capacitor is.

An aluminium electrolytic capacitor is a polarized capacitor, composed of two electrodes separated by an electrolytic medium. The positive electrode, called the anode, consists of aluminium foil with an oxide layer, acting as a dielectric, and the negative electrode, called the cathode, consists of a metal or carbon film. A voltage is applied to the anode, and it draws an electrolyte on its oxide surface. As a result, an electric double layer is formed at the interface of the electrolyte and the oxide surface. When a reverse voltage is applied to the capacitor, the electric double layer is destroyed, allowing current to flow in the opposite direction.

The 25YXF1000MEFCG412.5X20 has a large capacitance and low equivalent series resistance, making it an ideal choice for high voltage, high temperature, and high pulse current applications. It has a high impulse and ripple current handling capacity, making it suitable for use in power supplies, converters, and motor controls, for instance. It is also resistant to corrosion and has a long service life.

The working principle of this type of capacitor is relatively simple. The applied voltage causes a current to flow in the capacitor, which then produces a magnetic field. This magnetic field then induces an opposing current in the capacitor, thus producing the effect of capacitance. This capacitance is further enhanced by the presence of the dielectric.

In conclusion, the 25YXF1000MEFCG412.5X20 is an aluminum electrolytic capacitor used in various electronic and electrical devices. It is a polarized capacitor that is capable of withstanding high voltage, high temperature and high pulse current loads and is suitable for use in AC/DC power supplies, UPS systems, and DC/DC converters. Its working principle is relatively simple; when an applied voltage causes a current to flow, a magnetic field is produced, and the presence of the dielectric further intensifies the effect of capacitance.

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