420BXW33MEFC14.5X20

Aluminum electrolytic capacitors are devices composed of two aluminum foils separated by a dielectric paper impregnated with an electrolytic solution. The 5 digit part number “420BXW33MEFC14.5X20” of this type of capacitor indicates important characteristics such as its capacitance value (in µF), its DC working voltage (V), its temperature characteristics, its size, along with other parameters. In this article we will discuss the application field and working principle of “420BXW33MEFC14.5X20” aluminum electrolytic capacitors.

Application Field

Aluminum electrolytic capacitors can be found in a variety of industrial and consumer electronics applications. These applications include filtering, bypassing, decoupling, motor driving, signal coupling, timing and power supply systems, etc. “420BXW33MEFC14.5X20” aluminum electrolytic capacitors are designed to meet stringent international standards. With an operating temperature range of -40°C to +90°C, and a voltage rating of 14.5 Vdc, these capacitors are suitable for use in a wide range of industrial and consumer electronics applications.

The commonly found applications of aluminum electrolytic capacitors are power and filtering applications that require relatively low capacitance values. Hence, aluminum electrolytic capacitors are usually found in audio and video equipment, microwave technology, automotive, communications equipment, aircraft, and space electronics.

Working Principle

The working principle of aluminum electrolytic capacitors can be understood by studying their construction and operation. Aluminum electrolytic capacitors are composed of two electrodes (or conductive plates) and a dielectric material. When a voltage is applied across the electrodes, a current flows from one electrode to the other, creating an electrical field between them. This field distorts the dielectric material, which absorbs and stores energy. This energy is then released on demand when the capacitor is no longer receiving power.

The two aluminum foils “420BXW33MEFC14.5X20” are separated by a dielectric paper that is impregnated with an electrolytic solution. This solution creates a barrier between the two electrodes, preventing them from coming in contact. As the voltage is applied across the capacitor, the aluminum foils expand, creating a larger surface area in which the electric field can move. This increases the capacitance of the device. The capacitance of the capacitor is directly proportional to both the size of the surface area of the foils and the thickness of the dielectric material.

The voltage rating of the “420BXW33MEFC14.5X20” aluminum electrolytic capacitor is 14.5V and its operating temperature range is -40°C to +90°C. The capacitance value of the device is 33µF. It is an axial capacitor, which means that it has two leads on either side of its body and an insulation sleeving to prevent shorting of the capacitor’s terminals.

Conclusion

The “420BXW33MEFC14.5X20” aluminum electrolytic capacitor is a device with an axial construction and an operating temperature range of -40°C to +90°C. Its capacitance value is 33µF and its voltage rating is 14.5 Vdc. It is used in a wide range of industrial and consumer electronics applications, including filtering, bypassing, decoupling, motor driving, signal coupling, timing and power supply systems. The working principle of the capacitor is based on the electric field created between two aluminum foils when a voltage is applied across them.

Aluminum electrolytic capacitors are essential components in many electronics applications, and the “420BXW33MEFC14.5X20” is a high-quality device that provides reliable operation even under extreme temperature conditions.