BFC233621155

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Film Capacitors

The BFC233621155 is a type of metallized film capacitor that has its origins in a vast family of energy storage components that have evolved and been developed over the course of more than a century. Film capacitors are the earliest form of passive components, having been used in electrical and electronic equipment since the late 19th century.

Film capacitors are primarily used in applications where a component capable of storing charge with high electrical insulation and improved temperature cycling performance is required. The BFC233621155 film capacitors comprise a plastic film element, along with metal electrodes and a terminal lead, thus giving rise to a family of passive components known for their robustness and reliability.

Application Fields

Due to their robustness and reliability, the BFC233621155 capacitors are often used in virtually all types of passive electronic components, such as switch degreasers and power suppliers, as well as medical and industrial applications. In all these applications, the film capacitors provide high electrical insulation, temperature cycling performance and low electrical leakage current.

In addition, the BFC233621155 film capacitors are often used in power quality improvement applications, such as power factor correction, harmonic damping and transient response improvement. The capacitors are also suitable for use in motor drives, where they help to reduce inrush current by instantaneously storing the required energy and discharging it gradually as needed by the motor.

In addition, film capacitors are often employed in noise suppression applications, such as audio and video signal noise reduction, as well as AC and DC power noise filtering. The capacitors are also suitable for use in low noise amplifier, communication and signal conditioning circuits, as well as power conversion stages.

Working Principle

BFC233621155 capacitors are based on a metallized polypropylene film. The core of the capacitor is composed of two layers of the same dielectric material, with metallized electrodes on both sides. The metalised electrodes comprises a thin strip of metal that is vapour-deposited onto the dielectric material. The metal strip serves as the terminals for connecting the capacitor to the external circuit.

When a voltage is applied to the capacitor, a capacitance is established between the two metallised electrodes. The capacitance is established by electrons in the metal layer, which are attracted to each other, generating an electric field. The electric field stores energy, which can be discharged when the voltage across the capacitor is reversed.

The metallized polypropylene film acts as an insulation barrier, preventing current leakage and providing protection from electrical interference. It also provides superior temperature cycling performance and electrical insulation, which is especially important in power quality improvement, motor drive and noise suppression applications.

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