MKP386M540085JT6

ESR (Equivalent Series Resistance):	3.5 mOhms
Features:	Low ESR
Ratings:	--
Applications:	Snubber
Lead Spacing:	0.433" (11.00mm)
Termination:	Screw Terminals
Height - Seated (Max):	1.811" (46.00mm)
Size / Dimension:	1.732" L x 1.181" W (44.00mm x 30.00mm)
Package / Case:	Rectangular Box
Mounting Type:	Chassis Mount
Operating Temperature:	-55°C ~ 105°C
Series:	MKP386M
Dielectric Material:	Polypropylene (PP), Metallized
Voltage Rating - DC:	850V
Voltage Rating - AC:	450V
Tolerance:	±5%
Capacitance:	4µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Film Capacitors

A film capacitor, also known as a plastic film capacitor, is a capacitor consisting of a thin film of plastic as the dielectric material. It usually has large capacitance values, good temperature and frequency stability, long life, low cost, and excellent heat resistance. Film capacitors are found in various types, each with its own distinct characteristics and applications. The MKP386M540085JT6 is one of the most popular and widely used types.

MKP386M540085JT6 Application Field

The MKP386M540085JT6 is a polyester film capacitor, which is mainly used in small signal and electronic equipment. It is suitable for DC and low-frequency AC use in general electronic equipment and power input circuits. It is also suitable for a wide range of uses with its excellent performance such as heat resistance, capacitance stability, and low leakage current, making it a reliable choice for applications where it is necessary to provide high accuracy in measurement, control, and signal processing.In addition, the MKP386M540085JT6 is also widely used for various types of power modules, inverters, and converters, which require superior thermal conductivity and high accuracy in current measurement and operation. It is also included as an important component in many DC/AC motor drives and motor controllers. Furthermore, its low dissipation factor and outstanding dielectric absorption characteristics make it especially suitable for switching applications, such as the control of transformers or switch mode power supplies.

MKP386M540085JT6 Working Principle

The MKP386M540085JT6 consists of an electrolytic capacitor in which one layer of film functions as the dielectric and the other, incorporated in the structure of the capacitor, divides the capacitor into several sections. The way the copper-coated polyester film is formed and the particular type of electrolyte used determines the electrical resistance, the capacitance value and the voltage across the capacitor. When a voltage is applied to the capacitor, an electric field is produced to compress the film and generate an electrical charge. The charge is stored in the capacitor as static energy (potential--no current is flowing). When the voltage is cut off, the electrical charge slowly dissipates due to a significant capacitance leakage. The voltage across the capacitor cannot exceed the designed maximum voltage rating, and the risk of explosion or heat generation due to short-circuit is relatively low. The capacitance value of the MKP386M540085JT6 is determined by the type of film, the dimensions of the electrode, the overall structure of the capacitor, and the type of electrolyte used. The capacitance value is measured in farads (F), microfarads (uF), nanofarads (nF), and pico-farads (pF), and is given at specific frequencies. In terms of temperature stability, the MKP386M540085JT6 exhibits an increased stability and reliability for temperatures between -25°C and 85°C. As for leakage current, due to the polyester film having high resistance, the leakage current is extremely low at < 0.20mA. All in all, the MKP386M540085JT6 is suitable for various electronic and electrical applications due to its extremely low leakage current, excellent temperature stability, and high capacitance stability. These characteristics, along with its low cost, make it the perfect choice for various applications, particularly those involving motor control and DC switching.

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