890334026020

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Film Capacitors

Film capacitors, also known as plastic film capacitors, are non-polarized capacitors with an insulation film as the dielectric. They are typically used in circuits where high stability and low dissipation factors are required. The type of film used determines the dielectric constants, which in turn determine the operating characteristics of the film capacitor.

There are many types of film capacitors available on the market, including ceramic, capacitor, electrolytic, and tantalum. Each type of film capacitor has its own unique properties, which dictate how it should be used. For example, ceramic capacitors typically provide a very high capacitance, as well as a very low dissipation factor, making them ideal for high-frequency applications. Electrolytic capacitors, on the other hand, are typically used in low-current applications due to their high self-inductance and poor temperature coefficient.

890334026020 Application Field and Working Principle

The 890334026020 film capacitor has a working temperature range of -40°C to +80°C and a capacitance of 4.7µF. It is a non-polar film capacitor, meaning that it can be connected with either side of its lead (the anode and the cathode) facing either upward or downward. The 890334026020 is typically used in applications that require a very low dissipation factor and high stability.

The working principle of the 890334026020 is based on the capacitance created by two parallel conductive surfaces, separated by a dielectric layer (in this case, the insulation film). When a voltage is applied to the capacitor, an electrical field is generated in the dielectric, creating a charge separation which produces a current. This current is then stored within the capacitor until the voltage is removed, at which point the capacitor discharges the current.

The 890334026020 is commonly used in communication and control circuits, as well as in audio and video equipment. It is also used in circuits that require a very stable voltage. In addition, it can be used in switching and power equipment, where low-leakage current and high-ripple current performance are required.

Overall, the 890334026020 is a popular solution for many applications due to its low dissipation factor, high stability, and wide temperature range. Its compact size also makes it an excellent choice for applications with limited space.

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