B32529C0684M289

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Film Capacitors

Film capacitors are a type of capacitor mainly used in power electronic applications where size and reliability are of utmost importance. They are a type of fixed capacitor, meaning that their capacitance does not change with voltage or frequency, and have a wide range of construction and application possibilities. This makes them a common choice for high-voltage and high-power applications.

B32529C0684M289 Application Field and Working Principle

B32529C0684M289 film capacitor is a metallized polyester film capacitor, with low dielectric absorption and high insulation resistance. The capacitance is 0.68uF, the rated voltage is 250V and the operating temperature range is -55°C to +105°C. It is widely used in power electronics applications, such as motor drives and medical devices.

The B32529C0684M289 film capacitor works by creating a capacitive effect through two conducting surfaces (metallized films) separated by an insulating material, called the dielectric. This dielectric is a thin film made of polyester, which allows for higher voltage operation and a better dielectric absorption than other dielectric materials such as ceramic or mica. When a voltage is applied across the two conducting surfaces, an electric field is set up that allows the capacitor to store and release energy over time. The dielectric is designed to minimise the amount of charged particles lost to the surrounding environment.

When the voltage is changed, the capacitance of the capacitor also changes. This is because the amount of energy stored in the capacitor (and thus its capacitance) is proportional to the voltage across the two conducting surfaces. This means that the capacitor is able to store and release energy in proportion to the applied voltage.

In summary, the B32529C0684M289 film capacitor is a metallized polyester film capacitor with a capacitance of 0.68uF, a rated voltage of 250V, and an operating temperature range of -55°C to +105°C. It has a wide range of construction and application possibilities, and is a popular choice for high voltage and high power applications.

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