MKP1840447166

Operating Temperature:	-55°C ~ 100°C
Features:	--
Ratings:	--
Applications:	DC Link, DC Filtering; High Pulse, DV/DT
Lead Spacing:	0.591" (15.00mm)
Termination:	PC Pins
Height - Seated (Max):	0.532" (13.50mm)
Size / Dimension:	0.689" L x 0.276" W (17.50mm x 7.00mm)
Package / Case:	Radial
Mounting Type:	Through Hole
Series:	MKP1840
Dielectric Material:	Polypropylene (PP), Metallized
Voltage Rating - DC:	--
Voltage Rating - AC:	--
Tolerance:	±20%
Capacitance:	0.47µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Film Capacitors

Film capacitors, which go by many other names, such as plastic capacitors, polyester capacitors, Mylar capacitors, or MMAE capacitors, are a type of capacitor which uses a thin film of plasticsemiconductive polymer as the dielectric layer. The MKP1840447166 is a type of film capacitor, specifically designed for voltage suppression in high-power switching converters and supply systems and is often used in lieu of electrolytic capacitors for the purpose. It stands out from other capacitors due to its superior energy density, low ESR, high rated operational voltage, easily adjustable impedance, and quick recovery time.

Application Field

Due to the MKP1840447166’s energy density, low ESR, high rated operational voltage, and adjustable impedance, this type of capacitor can be used in a wide variety of applications, especially for converters and supply systems. Firstly, in DC-DC converters, the capacitor helps balance load voltage ripple over voltage cycles by reducing the stressed voltage within the system. Secondly, in AC-DC converters, the capacitor is used to reduce high peaks and excess voltage every half-cycle. Thirdly, for AC-DC rectifiers, the capacitor allows for the re-adjustment of peak ripple voltages to a positively regulated voltage. Additionally, the MKP1840447166 can also be used in voltage limiter circuits, snubbers, and even avionics systems.

Working Principle

The MKP1840447166 features a polypropylene dielectric layer which is sandwiched between two aluminium foil electrodes. The two electrodes serve as an electrical conductor for the capacitor which creates a deposit between the two layers of foil. This creates an electric field which means energy can be temporarily stored. This is how the capacitor works – it stores energy until it is ultimately discharged. When current flows across the capacitor via the two electrodes, a voltage gradient builds up, and this is what suppresses/lowers voltage ripple. The capacitance of the MKP1840447166 is easily adjustable as it depends on the available space between the two electrodes. The size of this space can be tweaked and modified to meet the needs of the specific application, which is something electrolytic capacitors can’t do.In addition, thanks to its high dielectric strength, the MKP1840447166 is able to tolerate high voltages without taking any damage. This high-performing capacitor is also designed to quickly recover after quick impulsive transients. This means it is suitable for applications which require high reliability and a very low failure rate. The MKP1840447166 is an advanced plastic capacitor whose ability to handle quick impulsive transients, adjustable impedance, high dielectric strength, and low ESR makes it an ideal choice for stabilizing voltage in applications where high power is used. This type of capacitor is, therefore, a go-to solution for converters, rectifiers, voltage limiters, and snubbers, where voltage stability is of utmost importance.

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