BQ024G0473K

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Film capacitors, also known as Polyester/Polycarbonate type capacitors, have been widely used in various applications due to their excellent features and capabilities. The BQ024G0473K is a film capacitor designed for the power electronics market. It is a small but powerful capacitor, providing excellent performance, reliability and long service life.

From the outside, the BQ024G0473K is a small round component with a cylindrical body and two metalized metal electrodes. This capacitor has a maximum capacitance value of 470nF (0.47μF) with a working voltage of 21V at a temperature range of -40? to +85?C. It has a value tolerance of ±5%, and a very low internal resistance. This capacitor also features an electrostatic shield, which is used to reduce the leakage current caused by the negative influence of humid environment.

The application fields of BQ024G0473K are as follows:

• Power suplies
• Regulated power supplies
• Electronic converters
• DC/DC power supplies
• Motor electronic controllers

Apart from these applications, it can also be used in the industrial automation, communication & control, audio/video systems, measuring instruments, automotive and mobile applications.

Let’s take a look at the working principle of film capacitors. The working principle of film capacitors is based on the process of electrostatic charge transfer, also known as charge injection or electrical discharge. When a film capacitor is connected to a potential of voltage, electrical charges start to move from one terminal to the other, creating an electric field in between. This electric field generates an electric polarisation, thus resulting in a capacitance value. The thickness of the film layer, the electric field strength and the dielectric property of the material affect the capacitance value of the film capacitor.

In the BQ024G0473K, a polyester layer is used as the dielectric, with high insulation resistance and low dielectric loss. When the capacitor is exposed to high temperatures, these properties are not affected, which ensures high reliability and longevity of the part. This capacitor is also heat resistant, humidity resistant and vibration resistant, making it ideal for industrial-grade applications.

To sum up, the BQ024G0473K is a small but powerful film capacitor designed specifically for the power electronics market. It has a low internal resistance, excellent performance, and high reliability. Furthermore, it is heat, vibration and humidity resistant, making it also suitable for industrial-grade applications. The BQ024G0473K can be used in power suplies, regulated power supplies, electronic converters, DC/DC power supplies, motor electronic controllers, industrial automation, communication & control, audio/video systems, measuring instruments, automotive and mobile applications.

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