MKP385527125JPM4T0

Operating Temperature:	-55°C ~ 110°C
Features:	--
Ratings:	--
Applications:	DC Link, DC Filtering; High Frequency, Switching; High Pulse, DV/DT
Lead Spacing:	1.476" (37.50mm)
Termination:	PC Pins
Height - Seated (Max):	1.772" (45.00mm)
Size / Dimension:	1.654" L x 1.181" W (42.00mm x 30.00mm)
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:	2.7µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tray

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Film CapacitorsFilm capacitors or plastic film capacitors, sometimes called polymer film capacitors, are electrical components used to store electrical energy and a kind of passive electronic components with the features of small size, light weight, high volume resistivity, low dielectric loss, good insulation, high stability and safety. Among them, MKP385527125JPM4T0 is one of the most widely used in the current market.ApplicationMKP385527125JPM4T0, a standard-rated metallized polyester film capacitor, belongs to the largest class of film capacitors. It has excellent properties of high dielectric strength, high insulation resistance and long working life. It is widely used in a variety of power supply circuits, such as blocking, coupling and bypassing circuits, in fields of LED lighting, fuse overload protection, side channel vibration testing, high voltage measurement, motor precharge, power supply rectification and many more.Working PrincipleThe working principle of MKP385527125JPM4T0 is that a dielectric material is sandwiched between two electrodes, with the dielectric stacked between a conductive plate and a metal foil. The dielectric, the two electrodes, and the metal foil together form a single unit. When an alternating current is applied to the capacitor, the electric charges accumulate on the electrode, producing an electric field. The electric charges move alternatively between the two electrodes, generating electrical energy in the process.The electrode can be further composed of different materials, such as metal films or paper. The capacitance of such film capacitors can be very high, and can also be adjusted to a more exact value. This is done by stacking multiple layers of film capacitors together, or by using different dielectric materials. The metal used to produce the electrodes often affects the capacitance of the capacitor as well, due to the high electrical conductivity of the material.ConclusionMKP385527125JPM4T0, a metallized polyester film capacitor, is a type of high-precision film capacitor which offers excellent properties such as high dielectric strength, high insulation resistance, and long working life. It has wide usages in the power supply circuits, such as blocking, coupling and bypassing circuits, and is suitable for fields of LED lighting, fuse overload protection, side channel vibration testing, high voltage measurement, motor precharge, and power supply rectification. The working principle of such capacitor is based on the electric charges accumulation on the electrodes and the alternating movement of electric charges between them.

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