MKT1820447634

Series:	MKT1820
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Capacitance:	0.47µF
Tolerance:	±5%
Voltage Rating - AC:	220V
Voltage Rating - DC:	630V
Dielectric Material:	Polyester, Metallized
Operating Temperature:	-55°C ~ 125°C
Mounting Type:	Through Hole
Package / Case:	Radial
Size / Dimension:	1.220" L x 0.433" W (31.00mm x 11.00mm)
Height - Seated (Max):	0.827" (21.00mm)
Termination:	PC Pins
Lead Spacing:	1.083" (27.50mm)
Applications:	DC Link, DC Filtering
Ratings:	--
Features:	--

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Introduction

MKT1820447634 is a kind of film capacitor. It is a kind of plastic film capacitor with low dielectric loss and high insulation resistance. It is also called MKP capacitor for short. This type of capacitor has a wide application field in electronic circuits and is widely used in a variety of circuits. The working principle of this type of capacitor is relatively simple.

Application Field

MKT1820447634 can be widely used in many electronic circuits, such as coupling circuit, bypass circuit, DC/AC blocking circuit, timing circuit, AC circuit, signal circuit, etc. The main application fields include computer, communication, industrial control, home appliance, instrument, lighting and other related fields. It is used in many high-frequency switch rectifying circuits, with its low loss, high insulation and low capacitance deviation. It is also used in filter circuits, such as low-pass filter, high-pass filter, band-pass filter and other complex filter circuits. It is suitable for those circuits that require quick response and large capacitance.

Working Principle

The working principle of the MKT1820447634 is the same as other film capacitors. It consists of two layers of metalized polypropylene film that are separated by an insulating layer. The two sheets of metalized plastic film act as two plates that are separated by an insulating layer. The two plates have opposite electric charge, and when a voltage is applied to the external leads of the capacitor, an electric field is established between the two plates. This electric field forms an electric dipole and produces an electric displacement between the two plates. The capacitance of the capacitor is determined by the area of the plates and the thickness of the insulating layer, which is called the dielectric constant. The capacitance will change according to the applied voltage.

Advantages

The main advantage of the MKT1820447634 is its low cost and high reliability. The materials used are lightweight and easy to store. Compared to electrolytic capacitors, MKT1820447634 has low dielectric losses and has a very low ESR. Its small size also makes it easy to design complex circuits. It is also resistant to vibration, temperature and humidity. MKT1820447634 is also insensitive to the insulating layer when polarity is reversed. This makes it suitable for high-frequency circuits.

Disadvantages

The MKT1820447634 has some disadvantages. Its capacitance is influenced by the applied voltage, temperature and age of the capacitor, so its performance is not stable. Also, it is sensitive to the applied frequency. When the frequency is high, the dielectric losses and leakage current will increase and the capacitance will decrease. It is also relatively difficult to test by standard instruments due to its high insulation resistance.

Conclusion

MKT1820447634 is an important type of film capacitor with wide application field in electronic circuits. Its advantages include low cost, high reliability, low dielectric losses, small size and high insulation resistance. However, its capacitance is unstable, sensitive to frequency and hard to test. In conclusion, MKT1820447634 is suitable for those circuits that require quick response and large capacitance.

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