947D571K102BHMSN

ESR (Equivalent Series Resistance):	2 mOhms
Features:	--
Ratings:	--
Applications:	DC Link, DC Filtering
Lead Spacing:	1.772" (45.00mm)
Termination:	Screw Terminals
Height - Seated (Max):	5.394" (137.00mm)
Size / Dimension:	3.543" Dia (90.00mm)
Package / Case:	Radial, Can
Mounting Type:	Chassis Mount
Operating Temperature:	-45°C ~ 85°C
Series:	947D
Dielectric Material:	Polypropylene (PP), Metallized
Voltage Rating - DC:	1000V (1kV)
Voltage Rating - AC:	230V
Tolerance:	±10%
Capacitance:	570µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Film Capacitors

Film capacitors are essential passive electronic components used in various applications, ranging from bypass/decoupling capacitors for power supplies, to antenna matching or AC line filtering. The 947D571K102BHMSN is a specific type of film capacitor, and its application field and working principle will be discussed in this article.

Construction

The 947D571K102BHMSN film capacitor is a plastic film capacitor that uses a flexible polypropylene film as the dielectric. The construction of such capacitors is relatively simple, consisting of two layers of conductive material, separated by the dielectric. These two conducting layers are usually made of aluminum, but also can be made of copper, which gives them some improved electrical and thermal properties. The dielectric is usually between the two layers of metal film, but it can be placed above or below the metal layers as well.

Application Field

Film capacitors, including the 947D571K102BHMSN type, are used in a variety of different applications. The most common applications for these capacitors include power supply and filtering in AC line applications, bypass and decoupling in DC power applications, and antenna matching in communications applications.In AC line applications, film capacitors are used for power supply and filtering. The capacitors act as a filter to eliminate high-frequency interference from the power supply and improve the signal-to-noise ratio. This improves the performance of the system, and also reduces the risk of interference with other equipment. In DC power applications, film capacitors serve the role of bypass and decoupling. A bypass capacitor is used to shunt high frequency signals away from sensitive components to reduce electrical noise and interference, while a decoupling capacitor is used to reduce voltage fluctuations in the supply line.In communications applications, film capacitors can be used as antenna matching components. Radio waves travel differently in different materials, and antenna matching capacitors are used to modify the impedance of the antenna so that it can pick up the desired frequency range.

Working Principle

Film capacitors store energy using the electrostatic principle. When a voltage is applied to the capacitor, an electric field is created that stores the energy until it is released. The conductive layers of the film capacitor are usually surrounded by a metal shield or insulation, which helps to protect it from external electrical noise.When a voltage is applied to the film capacitor, an electric field is created between the two conductive layers. This electric field creates an attractive force which draws opposite charges towards each other. This attraction results in an accumulation of charge on the capacitor, which is known as storing the energy. In order to release the energy stored on the capacitor, the voltage is reversed and the charges repel each other. This repulsion releases the energy in the form of an electric current.

Conclusion

The 947D571K102BHMSN is a type of film capacitor with a wide range of applications. The construction of the capacitor is relatively simple, consisting of two layers of conductive material, with a dielectric between them. These capacitors can be used in AC line applications, DC power applications, and communications applications. The working principle of the capacitor is based on the electrostatic principle, where energy is stored and released in the form of an electric current when a voltage is applied.

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