B32521C3683K289

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Film Capacitors

Film capacitors are a type of capacitor using thin plastic films as dielectric. Generally, film capacitors are constructed by winding two electrodes onto plastic films, then isolating the winding section with a resin insulator place over the winding. They usually last longer and offer better performance than other types of capacitors due to their large capacitance.

The B32521C3683K289 capacitor is a film capacitor made with polypropylene and polyethylene film as its dielectric. It has a working temperature range of -55℃ to +125℃ and a high dielectric strength of 3KV between its terminals. Its capacitance tolerance is ±5%, making it suitable for applications that need precision component.

Due to its high performance and reliability, B32521C3683K289 is often used in high voltage circuits. For example, it is frequently used in power factor correction (PFC) circuits in switch mode power supply (SMPS). It is also used in medical electronics equipment and automotive systems due to its temperature range, making it a reliable component for harsh environments.

The B32521C3683K289 capacitor has a wide range of applications. It can be used for filtering to reduce ripple in non-switched DC power supplies, as well as in radio frequency (RF) applications. It can also be used in studio and stage applications as well as musical instrument amplifiers as a power supply decoupling capacitor to reduce any background noise.

The working principle of a film capacitor is quite simple: two electrodes are wound onto the plastic film. When the electrodes are connected to a power source, an electric current flows through the capacitors, creating an electric field between the two electrodes. This electric field is generated by the displacement of the electric charge in the dielectric, which is polarized in a way that creates an electric field across it. This electric field stores energy, allowing the film capacitor to act as a storage device for electric potential.

The main advantage of the B32521C3683K289 is its high capacitance tolerance, ensuring reliable performance even when the capacitance variation is large. Additionally, the low ESR value – equivalent series resistance – ensures that the capacitor operates efficiently with minimal power loss in a wide temperature range. This makes it suitable for both AC and DC circuits.

In conclusion, the B32521C3683K289 film capacitor is an effective and reliable component for applications such as power factor correction and filtering in high voltage circuits. Its high capacitance tolerance, wide temperature range, and low ESR value make it suitable for a variety of applications.

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