BFC2370FC123

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Film Capacitors

Film capacitors, also known as plastic film capacitors, are passive two-terminal electrical components which use an insulating plastic film as the dielectric, and metal electrodes on the two sides of the film to do the charge storage. They are widely used in a variety of applications due to their reliability, compactness and high operating temperature.

BFC2370FC123 is one kind of high quality film capacitors. It is a tubular, polypropylene film capacitor of a polarized or non-polar design for general purpose applications and suitable for a range of AC operations. It has a high rated voltage range of (4V~50V for polarized, 2V~50V for non-polar) and low ESR (Equivalent Series Resistance).

Application

BFC2370FC123 film capacitors can be used in diverse applications that utilize electro-capacitance. With its wide voltage range and low ESR, it can be used as a filter capacitor, power line filter, AC line filter, DC filter, high frequency filter, and so on. Generally, the capacitor is used in tuning and noise suppression, radar and communication equipment, drive and power systems, UPS power supply systems, medical equipment, audio and video equipment.

Working Principle

BFC2370FC123 Film capacitors work in the same way as all capacitors; by storing the electrical charge. When an electrical current is supplied to its two terminals, the capacitor collects electrical charge in the form of excess electrons on one terminal, while the other terminal collects these electrons\' absence, resulting in two opposite charges separated by the dielectric layer of plastic film. This separation of charge results in an electrical field between the two terminals that obstructs any further current flow and so, stores energy. The capacity of this stored energy is termed as capacitance.

To use the capacitor, its two terminals are typically connected parallel to either side of the electrical signal or power supply circuit. As the current runs across the capacitor, the capacitor takes up the differing components of the current signaled across it, effectively supplying a short-term steady electrical signal of current. As the capacitor dissipates energy, the signal becomes increasingly weak, which eventually requires the capacitor to be recharged and a new cycle is then repeat.

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