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Film Capacitors

BFC247990182 application field and working principle

Film capacitors are non-inductive and non-polarized capacitors with higher stability and reliability and are most suitable for higher frequency and pulse applications. The BFC247990182 is a film capacitor that is used in a variety of applications. The following will introduce its specific application field and working principle.

Application Field

BFC247990182 is suitable for general-purpose use. For example, it can be used for electrochemical double layer capacitance of power supply equipments, motor start and frequency conversion power supply, electronic circuit filter, power filter and etc. In addition, it can also be used for the equipments with high dielectric loss such as automotive and industrial equipments, television, etc. Furthermore, it can be used in special occasions, such as damping, inverter, filter, signal processing and etc, which needs ultra low ESR film capacitors.

Working Principle

The working principle of the BFC247990182 is based on the so-called electrets, which are a kind of dielectric material with polarization. Basically, when voltage is applied to the capacitor, an internal electric field is generated, causing the electrons to flow. With the electrons\' flow, electric polarization occurs, creating an electric field within the capacitor. The molecules of the dielectric material are then rearranged under the influence of the electric field, which further increases the electric field. This causes more electrons to flow, creating a greater electric field. The electrons inside the capacitor continue to flow until the electric field is strong enough to resist the dielectric breakup.

This process of electrons moving through the capacitor creates an electric charge on each plate, creating a capacitance- the amount of electric charge stored for a given voltage. Capacitance is measured in Farads. The higher the capacitance, the more charge stored for a given voltage.

Conclusion

The BFC247990182 is a film capacitor that is suitable for general-purpose use, including applications such as power supplies, motor start and frequency conversion power supply, electronic circuit filter, power filter and etc. Its working principle is based on dielectric polarization, as electric field causes electrons to flow, rearranging the molecules of the dielectric material and further increasing the electric field, creating capacitance.

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