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Film Capacitors

BFC233826153 Application field and Working Principle

Capacitors are electrical components that temporarily store electrical energy, also known as lagging power. There are many different types of capacitors, such as ceramic and aluminum electrolytic capacitors. Among them, the film capacitor (sometimes referred to as film dielectric) is a kind of dielectric with excellent performance, which is widely used in various electronic devices. One such example is the BFC233826153 film capacitor.

This type of capacitor is generally divided into two sub-types: bimetallic film capacitor and polyester film capacitor. The BFC233826153 belongs to the latter type, which has the following features:

• Excellent temperature characteristics: The working temperature range is -40℃ to +100℃.
• Excellent stability: The soaking stability of BFC233826153 is better than 10% (JS type), and dielectric loss is very small at the same temperature.
• High electric strength: The breakdown electric field is generally above 15kV/mm.

In addition, this type of film capacitor has a flame-retardant feature and is used as an ideal component in the event of a high-temperature and high-voltage environment, making it very popular for use in the electronic industry. It is widely used in motor starters, frequency converters, motor drive systems, and lightning protection systems.

The working principle of the BFC233826153 is relatively simple. The core material is made of mylar film, with aluminum foil as electrode, and a thin layer of plastic as an electrolyte, which forms an electric double layer. When a voltage is applied to the capacitor, an electric field is generated between the two electrodes and the insulation film, which leads to the distribution of the charges on the two electrodes and the insulation film. At this time, the capacitance value is generated on the capacitor and as the voltage continues to increase, the charge on the two electrodes continues to increase, thus further increasing the capacitance value.

In conclusion, the BFC233826153 film capacitor has excellent temperature and stability characteristics, good electric strength, and flame-retardant features. It is widely used in motor starters, frequency converters, motor drive systems, and lightning protection systems. Its working principle is quite simple, and it involves the application of voltage to form an electric field that leads to the distribution of charges on the two electrodes and the insulation film, which creates the capacitance sites on the capacitor.

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