BFC237882273

Film Capacitors

Film capacitors (or plastic film capacitors, due to the physical form of the dielectric) are a type of capacitor that typically uses PET (polyethylene terephthalate) or PEN (polyethylene naphthalate) as the dielectric. They are frequently used in high-end audio applications, such as the audio crossovers in hi-fi systems; however, they are also used in a wide variety of applications including power supplies, motor controls, and automotive electronics.

The BFC 237882273 is a type of film capacitor that is specifically designed for use in audio crossover applications. It has a voltage rating of up to 250V and a capacitance range from 0.22uF to 0.47uF. The BFC 237882273 offers an extremely low ESR (equivalent series resistance) of only 0.0027 ohms, making it very efficient in terms of power consumption. Additionally, its high temperature capability provides reliable operation in hot environments.

The working principle of the BFC 237882273 is quite simple. When an AC voltage is applied to it, the electrons in the dielectric material are alternately attracted to and repelled by the plates of the capacitor. This displacement of electrons creates an electric field between the plates, resulting in a net charge stored in the capacitor. As the AC voltage increases, more charge is stored in the capacitor, resulting in a higher capacitance.

In audio crossover applications, the BFC 237882273 is typically connected in series with other components (usually inductors) to achieve a specific frequency response. The capacitance of the BFC 237882273 helps to “tune” the frequency response of the crossover network by allowing more low frequencies to pass through at lower frequencies and more high frequencies to pass through at higher frequencies. This allows an audio system to achieve a more balanced overall frequency response for the listener.

The BFC 237882273 is an excellent choice for audio crossover applications due to its low ESR, high temperature tolerance, and wide capacitance range. It can also be used in other applications where high capacitance is needed, such as power supplies, motor controls, and automotive electronics.