MKP385410125JI02W0

Operating Temperature:	-55°C ~ 110°C
Features:	--
Ratings:	--
Applications:	DC Link, DC Filtering; High Frequency, Switching; High Pulse, DV/DT
Lead Spacing:	0.886" (22.50mm)
Termination:	PC Pins
Height - Seated (Max):	0.709" (18.00mm)
Size / Dimension:	1.024" L x 0.335" W (26.00mm x 8.50mm)
Package / Case:	Radial
Mounting Type:	Through Hole
Series:	MKP385
Dielectric Material:	Polypropylene (PP), Metallized
Voltage Rating - DC:	1250V (1.25kV)
Voltage Rating - AC:	450V
Tolerance:	±5%
Capacitance:	0.1µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Film capacitors are passive electrical components that use two conductors separated by an insulating material, referred to as a dielectric. These two conductors are then wrapped in a thin sheet of plastic, hence the term "film capacitors." The MKP385410125JI02W0 is a type of film capacitor whose application field and working principle are described in this article.The MKP385410125JI02W0 is a two-layer polypropylene film capacitor with a high insulation resistance and a high pulse loadability. It is designed principally as a replacement for metalized paper capacitors in signal processing circuits and power supplies where high voltage, low ESR, and high ripple current capability are required. Because of its voltage robustness and superior temperature stability, it is often used as a voltage-insensitive bypass for DC-DC converters. The capacitance values for the MKP385410125JI02W0 range from 0.033µF to 330µF, reaching up to 200V.When it comes to its working principle, the film capacitor is composed of two conductive electrodes separated by an insulating layer, also known as a dielectric. The dielectric material used in the MKP385410125JI02W0 is a thin layer of polypropylene film. As current passes through the capacitor, it creates an electrical field between the two electrodes. This field stores the electric charge, creating a capacitance which, in turn, stores energy and The resulting capacitance can be calculated by the formula C = ε*A/d where C is the capacitance, ε is a material constant, A is the area between the plates, and d is the distance between the two electrodes. In addition, the MKP385410125JI02W0 also features a self-healing property, which enables it to repair minor dielectric damage. In this phenomenon, called dashpotting or local corrosion, electrons on the surface of the polypropylene dielectric layer migrate to form a conductive film, thus effectively repairing the dielectric material and restoring functionality.In conclusion, the MKP385410125JI02W0 is a two layer polypropylene film capacitor with a high insulation resistance and a high pulse loadability, making it suitable for use in supply circuits and signal processing circuits where high voltage, low ESR, and high ripple current capability are required. Its capacitance values range from 0.033µF to 330µF, reaching up to 200V. Furthermore, it also features a self-healing property, which enables it to repair minor dielectric damage.

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