Operating Temperature:	-55°C ~ 125°C
Features:	--
Ratings:	--
Applications:	DC Link, DC Filtering
Lead Spacing:	0.591" (15.00mm)
Termination:	PC Pins
Height - Seated (Max):	0.571" (14.50mm)
Size / Dimension:	0.709" L x 0.335" W (18.00mm x 8.50mm)
Package / Case:	Radial
Mounting Type:	Through Hole
Series:	MKT1820
Dielectric Material:	Polyester, Metallized
Voltage Rating - DC:	400V
Voltage Rating - AC:	200V
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

MKT1820447406 Application Field and Working Principle

Film capacitors are one of the most widely used types of capacitors in the world. The MKT1820447406 is especially valuable for its low impedence value and high self-healing ability. In this article, we will discuss the application fields of MKT1820447406 and its working principle.

Application Field

The MKT1820447406 capacitor is ideal for high-frequency electronic equipment. Long-term stability and resonant performance make it the ideal choice for controlling oscillation in television antennas, stabilizing power supplies, and improving network response. Its low ESR also makes it an ideal energy loss solution for high-frequency conversion components. The MKT1820447406 capacitor can also be used in plate capacity, switching power supply, and radiation interference. With strong self-healing capacity and dielectric property, it also provides low-noise filtering and helps reduce the interference of RF and ringing signals. The MKT1820447406 is especially valuable in applications with high power density requirements such as automotive electronics, communications equipment, and professional audio equipment.

Working Principle

Film capacitors are constructed with a dielectric that is physically inserted between two conductors. This type of capacitor features two metallic foils that act as the electrodes and a thin plastic film that serves as the dielectric separating the two opposite poles. The thin film dielectric ensures low leakage current while providing high capacitance. When a voltage difference is applied across the electrodes, a field builds up in the dielectric material. This field causes a separation of charge and creates a region of opposing charges, one with positive charges and one with negative charges. This difference in charges is what forms the capacitance.In the MKT1820447406 capacitor, the dielectric is a polyester film, which has a variety of advantages. This film has a high stability under environmental conditions like temperature and humidity, which means the capacitor can maintain its capacitive value even after prolonged use. In addition, the polyester film is extremely thin which also helps to reduce the ESR and allows higher switching frequencies.

Conclusion

The MKT1820447406 capacitor is an ideal choice for high-frequency applications due to its low impedance value and high self-healing ability. It is constructed using a polyester film dielectric which ensures low leakage current and high capacitance, while also providing high stability in changing environments. The MKT1820447406 is ideal for controlling oscillation in television antennas, stabilizing power supplies, and improving network response.

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