PVC16215

Film capacitors, also known as film dielectric capacitors, are passive components that store electrical energy and are used in a variety of applications. PVC16215 is a film capacitor made by many manufacturers, and it is especially suitable for high-frequency applications. This article will discuss the application fields and working principles of PVC16215 film capacitors.

Applications

PVC16215 film capacitors are commonly used in electrical circuits along with resistors, inductors and other components to block direct current (DC) while passing alternating current (AC) signals. They help create a tuned circuit, as their values act as a low-pass filter and can reduce spurious noise or interference of AC power.

PVC16215 film capacitors are also used to reduce the start up time of large electric motors, obtain the correct phase shift in oscillators, and decouple signals. Additionally, they can be used for bypassing, blocking, and coupling applications.

Because PVC16215 film capacitors have a low equivalent series resistance and small temperature drift, they are widely used in RF communication circuits. Furthermore, due to their high insulation performance, film capacitors are often used as motor and generator insulation, and feedback and snubber circuits.

Working Principle

At its most basic level, a film capacitor consists two conductive plates that are separated by a dielectric material.

Current flow is the result of an electric field between the capacitor plates. This electric field is sustained by an external source, such as a voltage supply, and the accumulation of opposite charges on either side of the plates. The electric field supports the current flow until the capacitor charge is equal to the voltage supply.

A large difference between the charges cause more electric field and results in higher current flow. On the other hand, a small difference results in less electric field and the current flow is reduced.

In film capacitors, the dielectric material between the plates is a film or coating made from polyester or polypropylene material. This material is also known as Mylar. The film allows the charge carriers to pass through it and influences the capacitor’s ability to store and release energy.

The plates can be made from foil, metallized film or conductive surfaces. The areas between the plates must be separated with insulation material to reduce the risk of electrical shorts. Typically, the capacitance of a film capacitor increases with an increase in the number of plates and the dielectric.

Conclusion

PVC16215 film capacitors are versatile components that are capable of storing electrical energy. They are commonly used in electrical circuits and RF communications for blocking direct current while passing alternating current signals. They have a dielectric material between the plates that allow the charge carriers to pass through it, and they are made from polyester or polypropylene material. The number of plates and the dielectric material also affects the capacitance.