942C20S22K-F

ESR (Equivalent Series Resistance):	20 mOhms
Features:	--
Ratings:	--
Applications:	High Pulse, DV/DT
Lead Spacing:	--
Termination:	PC Pins
Height - Seated (Max):	--
Size / Dimension:	0.650" Dia x 1.339" L (16.50mm x 34.00mm)
Package / Case:	Axial
Mounting Type:	Through Hole
Operating Temperature:	-55°C ~ 105°C
Series:	942C
Dielectric Material:	Polypropylene (PP), Metallized
Voltage Rating - DC:	2000V (2kV)
Voltage Rating - AC:	500V
Tolerance:	±10%
Capacitance:	0.022µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Film Capacitors

Film capacitors are one of many types of capacitors that can be found in electronics and circuits. These devices are manufactured with a thin dielectric film as the insulator between the two electrical plates of the capacitor. They are used in a variety of applications including the filtering of noise, impedance matching, compensation of current gain, and the decoupling of DC signals. 942C20S22K-F is one such film capacitor, and this paper aims to discuss the application field and working principle of this device.

Application Field

Film capacitors are often used in low frequency applications such as power supplies and filters, due to their low ESL and ESR characteristics. 942C20S22K-F is a film capacitor specifically designed for use in Class X2 applications, such as those found in power quality filters for AC mains. The device can help reduce parasitic frequencies ranging from 150kHz to 500kHz, and is rated for a maximum voltage of 275VAC and a temperature range of -40℃ to +105℃.Another application for the 942C20S22K-F is as a MOV (metal oxide varistor) protection device. This type of capacitor is used in circuits to help protect components from damage due to sudden surge in current. The device is also suitable for use in medical devices and equipment, thanks to its low EMI signature signature and ESD immunity.

Working Principle

Film capacitors, such as the 942C20S22K-F, consist of two conductive plates separated by an insulating material (dielectric) film. The construction of these devices is such that a small electrical charge (voltage) is stored in between the two plates. An electrical current will flow through the plates when a voltage is applied to them, and the amount of electricity stored depends on the amount of voltage applied.The 942C20S22K-F is constructed from a thin dielectric film that provides excellent insulation. This film also helps reduce parasitic frequencies and provides a greater level of electrical stability. The capacitor is designed with a high volumetric efficiency and a high temperature tolerance, making it suitable for a wide range of applications.

Conclusion

The 942C20S22K-F film capacitor is an excellent choice for applications such as power quality filters, MOV protection, medical equipment, and more. The thin dielectric film of this device helps reduce parasitic frequencies, while its construction allows for a high volumetric efficiency and a wide temperature tolerance. By understanding the applications and working principles of the 942C20S22K-F, users can better utilize film capacitors for their projects and applications.

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