MKP383439040JII2B0

Operating Temperature:	-55°C ~ 105°C
Features:	--
Ratings:	--
Applications:	High Pulse, DV/DT
Lead Spacing:	0.886" (22.50mm)
Termination:	PC Pins
Height - Seated (Max):	0.768" (19.50mm)
Size / Dimension:	1.024" L x 0.394" W (26.00mm x 10.00mm)
Package / Case:	Radial
Mounting Type:	Through Hole
Series:	MMKP383
Dielectric Material:	Polypropylene (PP), Metallized
Voltage Rating - DC:	400V
Voltage Rating - AC:	200V
Tolerance:	±5%
Capacitance:	0.39µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction

Film capacitors are used in a wide range of applications, from power electronics, medical equipment, aerospace and defense systems, and consumer electronics. The MKP383439040JII2B0 has become increasingly popular among these industries for its superior performance characteristics and solid construction. In this article, we will discuss the application field and working principle of the MKP383439040JII2B0 film capacitor.

Application Fields

The MKP383439040JII2B0 is designed for high operating temperatures, targeting the power electronics market. Particularly, it is used in applications for traction drives, power converters, UPS power supplies, solar inverters, welding power supplies, as well as other specialized applications such as lighting, telecommunications, and AC drives. It is also capable of supporting frequencies up to 1 MHz as well as providing excellent pulse handling capabilities and very low ESR.

Working Principle

The internal construction of the MKP383439040JII2B0 consists of several layers of metalized polypropylene film which are separated by polyester film dielectric layers. The metalized layer consists of a metal coating on the surface of the polypropylene film which conduct electricity across the capacitor. The dielectric layers ensure that the charge across the capacitor remains constant regardless of changes in external field conditions. This arrangement also allows for high capacitance values to be obtained without taking up additional space.When voltage is applied to the MKP383439040JII2B0, an electric field is created between the metalized layers, resulting in an electric dipole moment. This electric dipole moment forms a portion of the total capacitance. The capacitance of the MKP383439040JII2B0 also depends on the permittivity of the material, as well as its size and construction. The MKP383439040JII2B0 also produces less heat when compared to its other film capacitor counterparts, making it ideal for applications where space and temperature are an issue. This is due to the fact that the MKP383439040JII2B0 is constructed with a special material which offers better thermal stability in order to keep power dissipation to a minimum.

Conclusion

The MKP383439040JII2B0 film capacitor is an ideal choice for applications that require high operating temperatures, high frequencies, and low ESR. It can be used in power electronics, medical equipment, aerospace and defense systems, and consumer electronics applications. Thanks to its construction of several layers of metalized polypropylene and dielectric films, the MKP383439040JII2B0 provides an excellent electrical performance, and generates less heat when compared to other film capacitors.

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