472MWR630K

Operating Temperature:	-40°C ~ 105°C
Features:	Low ESR
Ratings:	--
Applications:	General Purpose
Lead Spacing:	--
Termination:	PC Pins
Height - Seated (Max):	--
Size / Dimension:	0.217" Dia x 0.453" L (5.50mm x 11.50mm)
Package / Case:	Axial
Mounting Type:	Through Hole
Series:	MWR
Dielectric Material:	Polyester, Metallized
Voltage Rating - DC:	630V
Voltage Rating - AC:	220V
Tolerance:	±10%
Capacitance:	4700pF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction to Film Capacitors

Film capacitors, also known as film dielectric capacitors, are passive components that are mainly composed of metal foil electrodes and plastic film dielectric. Film capacitors offer superior electrical characteristics and long lifespan compared to ceramic capacitors, electrolytic capacitors and paper capacitors, making them the preferred capacitor in various applications. In addition, film capacitors are also highly reliable and provide excellent tolerance to moisture and temperature fluctuations.

472MWR630K Application Field and Working Principle

The 472MWR630K is a polypropylene film capacitor with a capacitance of 0.47pF and a low ESR of 6.3mOhm. This capacitor is suitable for use in high voltage DC-link circuits. It offers a high no-load current and good tolerance to moisture and temperature fluctuations, making it a popular choice for use in switching power supplies and DC-DC converters.The 472MWR630K operates on the principle of electrostatic field. The capacitor has two metal foil electrodes separated by an insulating plastic film dielectric. When an applied voltage is applied across the electrodes, an electric field is generated within the dielectric material, which causes an electric current to flow from one electrode to the other. As a result, charge accumulates at the two electrodes, causing a potential difference between them and storage of energy in the form of an electric field. The stored energy is released when the current is reversed or the applied voltage is removed.In addition to possessing superior electrical characteristics and long lifespan compared to other capacitors, the 472MWR630K is also highly reliable and provides excellent tolerance to temperature and frequency variations. This makes it a suitable choice for use in high-voltage switching power supplies, DC-DC converters, and pulse generators.

Conclusion

The 472MWR630K is a polypropylene film capacitor that can be used in high-voltage applications due to its high no-load current and excellent tolerance to temperature and frequency variations. It operates on the principle of electrostatic field and offers a wide range of capabilities, making it a popular choice for use in switching power supplies and DC-DC converters.

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