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Film Capacitors

A film capacitor, also known as a plastic film capacitor, is a type of capacitor that consists of a metalized polyester film as the dielectric. It has plenty of advantages over ceramic and paper/wax capacitors, with more optimal electrical properties, high energy density, low loss, small size and reliable performance. Film capacitors can be pellet-type with radial leads, more common snap-in type with high capacitance and high ripple current ratings, and axial-lead styles.

CB017D0222JBA Application Field and Working Principle

The CB017D0222JBA is a polypropylene (PP) film capacitor with its wider transmission frequency range, suitable for high-end audio industry and other high-reliability electronic equipment. With a dielectric strength of 875V AC, its capacitance range is from 0.22uF to 1.2uF and its rated voltage range is from 450V AC up to 630V AC. This particular film capacitor also has a long life span of up to 500 hours and its Capacitance Tolerance is +/-5%. It is a non-inductance capacitor and very ha​​rdly affects the circuit waveform.

The working principle of the CB017D0222JBA is relatively simple. When a voltage is applied across the parallel plates, an electric field is forced between them. This electric field causes electrons on one plate to be attracted to the other. The electrons accumulate on the plate across the capacitor, thus creating the necessary charge separation. As electrons accumulate, the voltage increase causes their repulsion which eventually prevent further accumulation of the electron. This creates a static electric field between the plates of the capacitors.

The electric field contained in the capacitor influences anything in the nearby environment, including other capacitors. This effect is known as coupling, and it is one of the reasons for the CB017D0222JBA\'s wide bandwidth. Coupling also means that this particular film capacitor can reduce noise and filtering the unwanted signals, making it the ideal choice for high-end audio applications. Furthermore, the CB017D0222JBA can also function as a voltage regulator, which helps to maintain a constant output voltage across a broad range of input voltage.

Finally, owing to its superior performance, the CB017D0222JBA lasts much longer than many other film capacitors, making it more reliable and cost-effective. The CB017D0222JBA is an ideal choice for applications demanding high performance and reliability.

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