Operating Temperature:	-55°C ~ 110°C
Features:	--
Ratings:	--
Applications:	High Pulse, DV/DT
Lead Spacing:	--
Termination:	PC Pins
Height - Seated (Max):	--
Size / Dimension:	0.591" Dia x 1.240" L (15.00mm x 31.50mm)
Package / Case:	Axial
Mounting Type:	Through Hole
Series:	MKP1839 HQ
Dielectric Material:	Polypropylene (PP), Metallized
Voltage Rating - DC:	1600V (1.6kV)
Voltage Rating - AC:	450V
Tolerance:	±5%
Capacitance:	0.22µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Film Capacitors

Background

Film capacitors are a type of non-polarized capacitor made of metalized plastic films. Film capacitors offer excellent characteristics compared to other types of capacitors, such as stability, low ESR (Equivalent Series Resistance), low ESL (Equivalent Series Inductance), low Leakage Current, high insulation resistance, and high operating temperature range. Film capacitors are used for various applications such as AC line filtering, high frequency and power electronics.

MKP 1839422134HQR Application Field and Working Principle

The MKP 1839422134HQR is a type of polypropylene metallized film capacitor. It has a capacitance of 18nF, a voltage rating of 400VAC, ripple current rating up to 10mA and a dielectric strength of 1.25kVAC. It is suitable for use in high frequency applications where stability and reliability of the capacitance value with temperature change is required.In a metallized film capacitor, two metal electrodes are deposited on both sides of the dielectric, usually a plastic film. An alternating current is applied across the electrodes, causing electrons to flow from one electrode to the other. This creates a static charge between the two electrodes which is proportional to the applied voltage and the thickness of the film (or the capacitance of the device). The capacitance of the device remains constant, even when the voltage changes over time.In high frequency applications, film capacitors are preferred because they offer outstanding stability with temperature change compared to other types of capacitors. The main advantage of the MKP 1839422134HQR compared to other types of film capacitors is its higher ripple current rating, which makes it well suited for filtering applications in AC line circuits.The MKP 1839422134HQR is mainly used in power electronics, AC line filtering, and high frequency applications such as resonant circuits. It can be used in series or parallel configurations depending on the application. Since film capacitors have a low equivalent series resistance (ESR) value, they can be used in high current applications.

Conclusion

The MKP 1839422134HQR is a type of polypropylene metallized film capacitor capable of handling up to 10mA of ripple current, making it ideal for power electronics, AC line filtering, and high frequency applications such as resonant circuits. It has a capacitance of 18nF, a voltage rating of 400VAC, and a dielectric strength of 1.25kVAC and offers excellent stability and reliability with temperature change compared to other types of capacitors.

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