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Film Capacitors

Film capacitors, also known as plastic film capacitors, are non-polarized electrical components that contain a single layer of paper or plastic material with an inner electrostatic field and dielectric. The dielectric is typically polyethylene terephthalate (PET) or polyester, though other materials such as polypropylene (PP), polycarbonate (PC), and polytetrafluoroethylene (PTFE) are used in some applications. Film capacitors are typically used in various industrial, commercial, and consumer applications.

BFC238304204 Application Field and Working Principle

The BFC238304204 is an industrial-grade film capacitor that offers low leakage current and high ripple resistance. It is a 500VAC type capacitor with a temperature rating of -40°C to +85°C. The BFC238304204 is used for protection circuits, decoupling, and secondary smoothing in a wide range of industrial applications including motors, lighting, medical, and automotive.

The BFC238304204 film capacitor utilizes a plastic film dielectric with a polyester base, providing a high level of insulation and reliability. The capacitor also features a coil to improve the self-healing property of the device and increase its capacitance stability. As the name suggests, the BFC238304204 features a flat, 2.8mm diameter construction. This makes it well suited for applications with limited mounting space.

The BFC238304204 film capacitor works on the principle of electrostatic induction. In this type of capacitor, an electrostatic field is created between two conductive surfaces by applying an electric field. The electric field causes the two metal plates to be attracted towards each other. As the intensity of the electric field increases, the electric field between the two metal plates increases, resulting in a higher capacitance value. This is how the BFC238304204’s capacitance varies with voltage.

The BFC238304204 capacitor has a rated capacitance of 5.35uF. When the applied voltage is below 500VAC, the capacitance remains constant. Above that voltage, the capacitance begins to decrease. The BFC238304204 also offers a low ESR (Equivalent Series Resistance) of 0.01 Ohms. This makes it an excellent choice for noise suppression applications.

In conclusion, the BFC238304204 is a versatile, high-performance industrial film capacitor. Its unique self-healing feature makes it especially well suited for applications that require a high level of reliability. With its flat 2.8mm diameter construction, the BFC238304204 is perfect for installations with limited mounting space. Its ability to withstand temperatures ranging from -40°C to +85°C, makes it ideal for applications across a variety of industries.

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