Film Capacitors

BFC247935753 is a type of a film capacitor. It has thin layers of plastic film, wound up tightly to form a cylinder. This tightly wrapped film provides the electric insulation. The outer film is then wrapped with a paper material for insulation, and finally, metal caps and a metal tube for physical strength.

Application Field

Film capacitors are preferred over other types of capacitors for many industrial applications. They have a wide range of temperature grades and dielectric strength. They also have low DF (dissipation factor) over a wide range of temperature and frequency. Film capacitors typically have better temperature stability and can withstand high voltages. The high dielectric strength allows them to be used in high voltage circuits. This makes them a great choice for a wide range of industrial applications, ranging from power supplies to motor drives.

In addition to their industrial applications, film capacitors are also used in consumer electronics. Some of the applications include air conditioning and computer peripherals. They are also used in medical and automotive electronics. Their low DF makes them ideal for low-noise applications. Finally, they are often used in audio applications as they have high power handling and low distortion.

Working Principle

Just like other types of capacitors, film capacitors operate on the principle of electrostatic field. When a current is passed through the capacitor, electric charges are stored in the thin layers of the film which creates an electrostatic field. This field creates an electrical potential between the two plates which is equal to the potential of the applied current. As the voltage across the capacitor is equal to the applied voltage, the capacitor acts as a storage device for the voltage.

The working principle of a film capacitor remains the same as that of other types of capacitors. However, due to the thin layers of the film, the capacitance of the film capacitor is much higher than that of the other types. This makes it ideal for many industrial applications, as it can store more energy in smaller packages.