B32682A7222J000

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Film Capacitors

Film capacitors are traditionally used in a wide variety of industrial, aviation, military and consumer applications, including power supplies, medical instruments, radio and television receivers, audio equipment and other applications where high performance and reliability are needed. This paper discusses the application field and working principle of a particular type of film capacitor, B32682A7222J000.

Uses of B32682A7222J000

The B32682A7222J000 is a high-voltage polypropylene film capacitor with a rated voltage of up to 2.2kV. It is often used in high voltage applications such as AC power supplies, lighting ballasts, HID lamps and DC power supplies, as well as in other high frequency circuits. Its non-inductive winding and capacitance characteristics make it suitable for EMI/RFI filters and loudspeaker crossovers. Additionally, its fast response and lowDCL characteristics are beneficial for DC-DC converters and brushless motors.

Principle of Operation

The B32682A7222J000 is an electrostatic capacitor, meaning it stores electrical energy by forming an electrical field between two materials with different electrical properties. This field is generated by the printing of electrodes onto a film substrate. The electrodes are connected to the capacitor’s lead terminals, while the film substrate provides the dielectric material between them. The thickness of the dielectric film determines the capacitor’s capacitance.

When an alternating current (AC) is applied to a capacitor, the positive and negative peaks of the AC voltage cause the capacitor’s voltage to repeatedly and rapidly charge and discharge. This is known as a charging cycle. The rate at which this charging cycle takes place is determined by the capacitance of the capacitor. The faster the charging cycle, the higher the frequency of the AC signal and the greater the amount of energy stored by the capacitor.

The B32682A7222J000 provides a correspondingly high frequency response, making it well suited for applications such as EMI/RFI filters. Its low-DCL characteristics make it great for DC-DC converters, where fast response times and low DC levels are critical.

Conclusion

The B32682A7222J000 is a high-voltage film capacitor with a rated voltage of up to 2.2kV. Its non-inductive winding and capacitance characteristics make it suitable for EMI/RFI filters, loudspeaker crossovers, DC-DC converters and brushless motors. It works by using printing electrodes onto a film substrate, which creates an electrostatic field. This field is responsible for the rapid charging and discharging of the capacitor, which in turn determines its frequency response, making it great for high-frequency AC and DC applications.

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