474PPA850K

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Film Capacitors

Film capacitors, also known as film dielectric capacitors or plastic film capacitors, are components with two conducting electrodes separated by a dielectric material. This type of capacitor is constructed of multiple layers of dielectric film, along with metallic material electrodes, which are generally wound together to form a cylindrical shape. The most common type of film capacitor is the polyester capacitor, also known as "layer-dielectric" or plastic film capacitors. The 474PPA850K is one such type, and has a wide range of applications and varied working principles.

The 474PPA850K is a single-layer capacitive film capacitor which is used for basic electrical energy storage in a wide range of applications including audio, automotive, telecommunications, and industrial applications. It has a temperature range of -40°C to +85°C and is UL recognized under the UL Recognized Component Program. The capacitance value is between 2.8 to 2.2 and can be used in applications ranging from coupling, decoupling, snubber, and energy storage.

The working principle of the 474PPA850K film capacitor is based on a very simple concept. When current flows through a film capacitor, the positive charges on one side of the dielectric move towards the other side of the dielectric, which is negatively charged. This motion creates a static electric field, which stores energy in the capacitor. When the field is large enough and the voltage across the film reaches a level high enough, the capacitor will start to discharge through the conductor, thus releasing the stored energy.

The 474PPA850K film capacitor is very effective in coupling, decoupling, snubber, and other energy storage applications due to its ability to store large amounts of energy quickly and discharging it equally as fast. Coupling capacitors are used to isolate two or more circuits, allowing one to respond to a signal while the other is unaffected. Decoupling capacitors are used to prevent noise generated by one circuit from entering another circuit. Snubber capacitors help reduce voltage spikes that may be generated in power supplies by dampening the voltage with the capacitor.

The 474PPA850K is a versatile capacitive film capacitor that can be used in a variety of applications, and it has a wide temperature range, working voltage range, and capacitance value range. With its ability to store energy quickly and release it equally fast, the 474PPA850K is an ideal choice for coupling, decoupling, snubber, and other energy storage applications.

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