MKP385339040JCI2B0

Operating Temperature:	-55°C ~ 110°C
Features:	--
Ratings:	--
Applications:	DC Link, DC Filtering; High Frequency, Switching; High Pulse, DV/DT
Lead Spacing:	0.295" (7.50mm)
Termination:	PC Pins
Height - Seated (Max):	0.413" (10.50mm)
Size / Dimension:	0.394" L x 0.197" W (10.00mm x 5.00mm)
Package / Case:	Radial
Mounting Type:	Through Hole
Series:	MKP385
Dielectric Material:	Polypropylene (PP), Metallized
Voltage Rating - DC:	400V
Voltage Rating - AC:	200V
Tolerance:	±5%
Capacitance:	0.039µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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What are Film Capacitors?

Film capacitors, also known as plastic film capacitors, are capacitors that use Thin Film Dielectric in their construction. This is a thin sheet of material that is highly insulating that is applied to an insulating film substrate. The thin film of dielectric and the substrate are then rolled up and then impregnated with a liquid insulating material, forming the finished film capacitor, which is quite small and very low in cost. There are two basic types of film capacitors: the polyester film capacitor which is a two-layer device and the polypropylene which is usually a three-layer device.

MKP385339040JCI2B0 Application Field and Working Principle

The MKP385339040JCI2B0 Film Capacitor is a four-layer device made of polypropylene film for use in frequency power supply, like frequency converters, power systems, motor controls, and HVDC systems. They feature a very low ESR (Equivalent Series Resistance) and ESL (Equivalent Series Inductance). The MKP385339040JCI2B0 Film Capacitor combines the advantages of plastic film dielectrics with a relatively high insulation resistance and working voltage. The working voltage of this capacitor is 400V and the current load is very high. This capacitor also features low loss at high frequencies due to its high reverse voltage breakdown characteristics. In terms of working principle, the MKP385339040JCI2B0 Film Capacitor works similarly to other film capacitors. An alternating electric field causes a dielectric material within the capacitor to accumulate electric charge. The stored energy in the dielectric material provides an effect known as capacitance, and this stored energy can then be used to supply an electrical charge to other electrical circuits. The MKP385339040JCI2B0 Film Capacitor is most commonly used in applications that require high frequency power supplies, such as frequency converters. The capacitor is especially well-suited for high power U/F frequency converter power supplies due to its low ESR and ESL, allowing for better control and more efficient power conversion from AC to DC.

Conclusion

The MKP385339040JCI2B0 Film Capacitor is a reliable and cost-effective device for a variety of applications where high power, high frequency power supply is required, such as frequency converters, power systems, motor controls, and HVDC systems. The capacitor combines the advantages of plastic film dielectrics with a relatively high insulation resistance and working voltage, and its low ESR and ESL make it ideal for high power U/F frequency converter power supply applications. The working principle of this capacitor is similar to that of other film capacitors, allowing them to store an electrical charge and provide power when needed.

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