DFKH-31-0005

Series:	DFKH
Packaging:	Bulk
Part Status:	Active
Filter Type:	--
Number of Lines:	2
Current Rating (Max):	2A
DC Resistance (DCR) (Max):	150 mOhm
Voltage Rating - DC:	--
Voltage Rating - AC:	440V
Operating Temperature:	-25°C ~ 100°C
Ratings:	--
Approvals:	--
Features:	--
Mounting Type:	Through Hole
Size / Dimension:	1.240" L x 0.728" W (31.50mm x 18.50mm)
Package / Case:	Radial - 4 Leads

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Common Mode Chokes

Common Mode Chokes (CMCs) are a type of inductor used in the electronic components industry for suppressing high-frequency common mode noise. They are primarily used in power supplies, as electronic circuits, such as digital electronics and personal computers, often suffer from the electro-magnetic interference (EMI) caused by high-frequency current. CMCs are also used in other electronic devices, including motors, telecommunication systems and air conditioning applications.The DFKH-31-0005 is an example of a CMC. It is designed to suppress common mode current over frequency ranges of 30 to 1000 MHz, providing an attenuation of up to 40 dB at 1 GHz. It is constructed as a ferrite core, which is a part of an inductor. The DFKH-31-0005 is available in a 14 pin DIP package, making it suitable for multiple uses.The primary application of the DFKH-31-0005 is for suppressing high-frequency common mode noise in the power supply. Common mode noise is created in power supplies when unwanted current flows between two connected points, usually between a power source or supply and a load. Common mode noise is also found in other electronic devices. The DFKH-31-0005 is designed to reduce this unwanted high-frequency common mode current, thus providing cleaner power to the connected electronic device.The working principle of the DFKH-31-0005 is based on the concept of magnetic coupling. This type of inductor is designed to couple two electromagnetic fields and transfer energy from one field to the other, while at the same time suppressing the flow of current between the two fields. The inductor does this by transforming an alternating electrical current into an alternating magnetic field. This magnetic field then induces a magnetic field in the surrounding circuits, which creates an opposition to the flow of unwanted current and as a result suppresses it.In addition to reducing common mode current in the power supply, the DFKH-31-0005 can also be used in other electronic devices, such as antennas and motors. In these devices, the inductor is used to reduce the amount of noise created by the EMI caused by high-frequency currents. This makes the device run more efficiently and reduces the amount of interference that can be received from other electronic devices.In conclusion, the DFKH-31-0005 is a type of inductor used to suppress high-frequency common mode noise in power supplies and other electronic devices. It is constructed as a ferrite core and is available in a 14 pin DIP package. Its primary application is for reducing common mode current, but it can also be used in antennas and motors to reduce noise caused by EMI. The DFKH-31-0005 works by transferring energy between two electromagnetic fields and suppressing the flow of current between them.

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