MKT1817322256D

Operating Temperature:	-55°C ~ 105°C
Features:	--
Ratings:	--
Applications:	General Purpose
Lead Spacing:	0.197" (5.00mm)
Termination:	PC Pins
Height - Seated (Max):	0.315" (8.00mm)
Size / Dimension:	0.283" L x 0.138" W (7.20mm x 3.50mm)
Package / Case:	Radial
Mounting Type:	Through Hole
Series:	MKT1817
Dielectric Material:	Polyester, Metallized
Voltage Rating - DC:	250V
Voltage Rating - AC:	160V
Tolerance:	±20%
Capacitance:	0.022µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction:
The MKT1817322256D is a film capacitor, or also known as a metalized film capacitor, which is a device for storing energy in the form of an electric field causing a flow of electricity. Film capacitors are used in a broad range of applications in the electronics industry, from capacitive power supplies to acting as a protective device for switching circuits. This article will discuss the general applications and working principle of the MKT1817322256D capacitor.Construction:
The MKT1817322256D film capacitor is a two-terminal device composed of several metalized plastic films stacked together in an alternating pattern. Each layer of the film is coated with a thin metal layer such as aluminum, copper, or zinc, which serves as the electrodes of the capacitor. The metalized film insulation is usually chosen based on the desired capacitance and dielectric properties.Application:
Film capacitors, such as the MKT1817322256D, are mainly used in power supplies and other higher voltage applications. They are preferred over ceramic capacitors due to their superior stability and power handling capabilities, as well as their greater accuracy in frequency response. They are mostly used for filtering and blocking DC between two components, for decoupling and for power factor correction in power supplies. They are also used in automatic motor starters, in audio applications such as loudspeakers, and in other industrial applications.Working Principle:
Film capacitors work by inducing an electric field between the two metalized layers of plastic film, creating an electric charge on each electrode. When a voltage is applied across the capacitor, current then flows through the metalized film, the higher the voltage, the more electricity is stored. The charge builds up to a maximum capacity, which is determined by the capacitance of the capacitor. This principle works the same way in reverse when the capacitor is discharged and the electric field dissipates.Conclusion:
The MKT1817322256D is a film capacitor designed for use in applications requiring accurate frequency response, power handling and stability. Its working principle works by inducing an electric field between two metalized layers of plastic film, creating an electric charge storage device. It is mainly used for filtering, blocking DC, decoupling and power factor correction, as well as other applications such as audio and industrial systems.

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