DFK-20-0001

Series:	DFK
Packaging:	Bulk
Part Status:	Active
Filter Type:	--
Number of Lines:	2
Current Rating (Max):	1A
DC Resistance (DCR) (Max):	500 mOhm
Voltage Rating - DC:	--
Voltage Rating - AC:	--
Operating Temperature:	-25°C ~ 100°C
Ratings:	--
Approvals:	--
Features:	--
Mounting Type:	Through Hole
Size / Dimension:	0.787" L x 0.787" W (20.00mm x 20.00mm)
Package / Case:	Nonstandard

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DFK-20-0001 Common Mode Chokes are an ideal choice for applications which require high levels of noise suppression. Common mode chokes are typically used in the power supply, analog and digital signals, and high-frequency signal control systems. They are also used in the control circuitry of Ethernet switches.Common Mode Chokes use a combination of electromagnetic and capacitive design elements to reduce ElectroMagnetic Interference (EMI). The basic components of a common mode choke are two or more coils and a capacitor. The windings of the coil are wound in such a way that current is induced in the winding in one direction only. This then creates a electromagnetic field that opposes the current flow, resulting in a large reduction of EMI.To further reduce EMI, a capacitor is often added across the coil windings. The capacitor acts as a filter, blocking or reducing the amount of radiation which is emitted. This combination of coils and capacitors form a common mode chokes, which can be used to reduce EMI in a variety of applications.Common Mode Chokes are often used in Power Supplys, Analog and Digital signals, and High-Frequency signal control systems. In Power Supplys, EMI can cause interference in other nearby circuits, reducing system performance. In systems which require clean Analog and Digital signals, Common Mode Chokes are used to reduce noise and increase accuracy. In High-Frequency control systems, EMI can cause interference with the signal, resulting in erratic operation or failed systems. Common Mode Chokes are used to ensure that the signal is kept safe from external interference. This is especially important in medical devices and RF communication systems, where negative EMI can create life-threatening situations.Common Mode Chokes are also used extensively in Ethernet switches, where they help control the speed and reliability of the signal. This ensures that the signal is transmitted with maximum efficiency, reducing the chances of interference.Common Mode Chokes can be designed with several different properties, depending on the needs of the application. Some of the options available include size, type, inductance, capacitance, maximum current, voltage, temperature, and frequency range. The selection of the most suitable Common Mode Choke for each application will depend on the number of signals, their frequencies, and the type of noise being suppressed.Common Mode Chokes are an effective and reliable way to reduce EMI and provide cleaner, more reliable signals in a variety of applications. They are easy to customize for specific applications, making them a popular choice for a wide range of industries and applications.

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