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Film capacitors: BFC238651104 application field and working principle

A film capacitor (also known as plastic/polyester capacitor) can be referred to as an electrical component used to store electrical energy in an electric field. It is an electrostatic energy storage device with metal electrodes. Film capacitors are widely used in a variety of applications, ranging from power supply to control circuits and instrumentation.

What is BFC238651104?

BFC238651104 is a type of film capacitor used in power electronic conversion. It is a polyester capacitor with a capacitance ranging from 0.47μF~250μF. It is designed with a screw on the terminal for easy installation and broad temperature range of -40℃ ~ +105℃. The capacitor has excellent heat radiation, low ESR, high insulation resistance, and high temperature resistance, making it an ideal choice for various applications including power supplies and medicine control circuits or instrumentation.

Applications

BFC238651104 is suitable for use in power electronic conversion which requires broad temperature range and excellent heat radiation. In addition, its excellent electrical characteristics make it ideal for use in circuits with high frequency and power, such as medical measurements and control. Also, it is suitable for use in the automotive industry, particularly in power supply, as well as in household appliances.

Working Principle

The BFC238651104 is based on the principle of electrolytic double layer capacitance. The capacitor consists of two electrodes, one metal plate and a dielectric layer. The metal plate is composed of two layers of polymer film and it acts as a capacitive electrode. The dielectric layer acts as an electrically insulating material between the two metal plates. The two metal plates of the capacitor hold charges which generate a voltage difference and thus create an electric field inside it. When an external circuit is connected to the capacitor, the electric field produced by the charges stored in the capacitor will be used to store energy.

Advantages

The BFC238651104 offers a range of advantages compared to other types of capacitors. It has a very low Equivalent Series Resistance (ESR) value, which results in low power loss. Its wide temperature range makes it suitable for use in various high temperature applications. Moreover, it is highly durable and reliable, with an excellent insulation resistance. Finally, its screw ensures easy installation.

Disadvantages

The BFC238651104 may suffer from self-heating, especially in high power conversion circuits. In addition, its low capacitance value limits its use in certain applications.

Conclusion

The BFC238651104 is a type of polyester capacitor that is commonly used for power electronic conversion. It is highly reliable, with a wide temperature range, low ESR rating, high insulation resistance, and excellent heat radiation. Its advantages over other types of capacitors make it suitable for various applications, such as medical instruments, power supplies, and the automotive industry. It is important to note that the capacitor suffers from self-heating, especially in high power conversion circuits.

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