BFC237390002

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Film Capacitors

Film capacitors, also known as capacitor film, are the passive components nearest to the ideal capacitor. Film capacitors mainly use film as the dielectric material, aluminum foil or copper foil as a pole, which is wrapped and wound into a cylindrical shape, and a terminal is seized on each side. Generally, a plastic bottom is made at the bottom of the capacitor to protect the aluminum foil and the lead formed by the lead wire and the plastic to form a complete product.

BFC237390002 Application Field and Working Principle

The BFC237390002 film capacitor is a generic part in the production and commercialization of film capacitors. It has extremely wide applications, especially suitable for AC coupling, interference filtering and bypass applications. Its operating voltage can reach up to 250VAC, tested with 1K/minute at -40C to 85C. In addition, the general temperature characteristic range of this capacitor is B (<-30% / +80%) and P (+22% / -56%).

The working principle of the BFC237390002 film capacitor is related to condenser physics. The capacitive effect is between two conductive layers. When a voltage is applied, an electric field is generated between the two layers. This electric field is dependent on the distance, area and dielectric constant of the two layers. The dielectric constant of the material is determined by the material itself, such as paper, which is a common dielectric material used in capacitors and has a dielectric constant of about 3.5. The larger the dielectric constant, the thicker the material and the higher the capacity.

Since the BFC237390002 film capacitor is especially suitable for AC coupling, interference filtering and bypass applications, this capacitor has the ability to store electric energy, which is the basic property of the capacitor. Capacitors are used as the main circuit component to filter, clean noise and such. Capacitors allow impedance between multiple terminal points as well as frequencies. And because of its many application fields and sleek design, this film capacitor has unmatched versatility and durability.

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