B32021A3472K289 Capacitors

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Film capacitors are widely used in electrical and electronic products, acting as key components that provide a variety of functions in a system, such as energy storage, power conversion and filtering. Film capacitors, sometimes called plastic film capacitors, offer some advantages over electrolytic and ceramic capacitors, including: High insulation resistance, good temperature and voltage stability, no piezoelectric effect, low equivalent series resistance and long life. B32021A3472K289 is a type of film capacitor, and its application field and working principle will be discussed below.

The B32021A3472K289 operates in the temperature range between -25°C to 85°C, and can handle up to 5A of current. It is made of polypropylene film, and features a non-inductive axial-leaded construction, which makes it well-suited for high-frequency applications. It is also highly stable, with low ESR and low inductance. Its internal structure ensures minimal power loss, and its flame-retardant coating ensures excellent electrical insulation performance and environmental protection.

B32021A3472K289 can be widely used in consumer electronics, such as digital cameras, DVD players and game consoles. It is also suitable for power line communication, AV equipment, medical equipment, LEDs, power conversion and more. Thanks to its good insulation resistance, wide temperature range and good moisture resistance, B32021A3472K289 is also used in harsh environments such as industrial control and automotive applications.

The working principle of B32021A3472K289 is similar to other types of film capacitors: when an alternating current is applied across the capacitor, the polypropylene dielectric layers sandwiched between the parallel electrodes become electrically charged, resulting in interlayer electrostatic attraction and repulsion. This creates an electrical field around the capacitor, allowing it to store energy. When the capacitor is charged, the current flowing through it decreases, resulting in lower energy consumption.

In conclusion, B32021A3472K289 is a type of film capacitor that is well-suited for high-frequency applications and can withstand harsh environments. Its wide temperature range and good insulation resistance make it suitable for a variety of applications. In addition, its working principle involves storing energy using interlayer electrostatic attraction and repulsion.

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