SFS48S18L288K-F

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Film capacitors, also known as plastic film capacitors, are made of metal foil, impregnation or plastic film. It is used in a wide variety of electrical and electronic circuits because of its many superior properties to other capacitor types. SFS48S18L288K-F is one type of such film capacitors and its application field and working principle will be discussed in the following parts.

Construction

The construction of the SFS48S18L288K-F film capacitor consists of two metal foils, the polyester film acting as dielectric, and the external plastic coating. The metal foils act as the capacitor’s plates, while the plastic coating ensures that these plates are insulated from each other. The polyester film acts as a dielectric—this is a material with a low electrical conductivity that is placed between the two charged plates of the capacitor.

Application Field

The SFS48S18L288K-F film capacitor is primarily used in AC circuits, as its polyester dielectric material has very high levels of dielectric absorption and pulse handling qualities. They are used to store electric energy at different frequencies, meaning they are very useful in regulating and controlling signal levels in audio and power amplifiers. In addition, they are commonly used as filters, to remove low frequency or high frequency noise from the circuit. They are also known to be incredibly reliable and are used in precision measurement applications.

Working Principle

A film capacitor works using the principle of capacitance. Capacitance is the ability to store electrical charge and is measured in farads (F). A film capacitor consists of two metal foils that are separated by a dielectric insulator. When an AC voltage is applied to the capacitor’s plates, an electric field is formed between the plates. This field stores electric charge, creating a capacitance that stores energy.

The SFS48S18L288K-F film capacitor has a capacitance of 288 pF, meaning it can store a large amount of electrical energy. Additionally, since the capacitor has a very high dielectric absorption ratio, it can store even higher levels of energy for longer. This makes it an efficient and reliable capacitor, perfect for use in AC applications.

Conclusion

The SFS48S18L288K-F film capacitor is an excellent choice for a variety of electrical applications because of its excellent dielectric absorption ratio and pulse handling properties. It is used in AC circuits to store electric charge, as well as filter out unwanted frequencies. Its 288 pF capacitance is also a great advantage, since it allows it to store a larger amount of electric charge.

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