BFC238332823

Film Capacitors: BFC238332823 Application Field and Working Principle

Film capacitors, sometimes known as plastic film capacitors, are electronics components composed of electrodes and a dielectric. They are available in many different forms and physically appear as discs, squares, and cylinders. They are distinct from paper, mica, ceramic, and electrolytic capacitors. Film capacitors have many of the same characteristics as these other kinds of capacitors, such as storing electrical energy, blocking DC voltage, and passing AC current, but they offer advantages such as temperature stability, low inductive and/or internal resistance, dielectric absorption, and high ripple or high-frequency currents.

BFC238332823 Application Field

The BFC238332823 capacitor from Amgis is a film capacitor that is ideal for use in high-load applications such as lighting, ballast, power supplies, filter capacitors, and motor and disc drives. Due to its construction, it is resistant to heavy shock and vibration, and has an operating temperature range from -25 to 85 Degrees C, with a relative humidity range of 5 to 95%. Additional features include low inductance, long service life, and high ripple current capability.

Working Principle

The BFC238332823 film capacitor is constructed of two layers of a polyethylene terephthalate (PET) laminate film sandwiched together. Each layer has a metallic coating of either aluminum or zinc to form electrodes, which are separated by an insulator, or dielectric. When a voltage is applied across the electrodes, electrons that are present in the aluminum coating are attracted to the zinc coating. As long as the voltage is applied, the electrons remain attracted to the opposite coating, creating a field of potential energy between the two electrodes. This field stores the electrical energy, which is released when the voltage is removed. As current passes through the capacitor, the stored electrical energy is discharged and then recharged with new electrical energy.

Whether in lighting components, power supplies, or motors, film capacitors offer a wide range of benefits, including temperature stability, low inductive and/or internal resistance, dielectric absorption, and high ripple or high-frequency currents. The BFC238332823 capacitor offers many of these benefits, in addition to high load capabilities, long service life, and superior shock resistance.