DFKF-28-0005

Series:	DFKF
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Filter Type:	--
Number of Lines:	2
Current Rating (Max):	4A
DC Resistance (DCR) (Max):	28 mOhm
Voltage Rating - DC:	--
Voltage Rating - AC:	440V
Operating Temperature:	-25°C ~ 100°C
Ratings:	--
Approvals:	--
Features:	--
Mounting Type:	Through Hole
Size / Dimension:	1.114" L x 1.079" W (28.30mm x 27.40mm)
Package / Case:	Radial - 4 Leads

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Common Mode ChokesCommon mode chokes are inductive devices designed to enable signals to pass, while blocking common mode noise caused by external sources. Common mode choke, like DFKF-28-0005, is specifically designed to reduce the electromagnetic interference conducted along power and signal lines. It is an ideal choice for applications where intrinsic safety, signal integrity, and EMI are required.The DFKF-28-0005 model is a three-hole common mode choke, offering wide range of performance for interference suppression applications. This device can effectively reduce the propagation of interference and provides excellent filtering performance in conditions with higher common mode voltages. Its physics-based design ensures maximum EMI suppression.The DFKF-28-0005 common mode choke is typically used as a filter on power lines to reduce common mode noise current. Its design enables the mechanical integration of the windings in one body, thus enhancing their performance. It can also be used as part of a larger EMI filter in order to reduce conducted noise on system outputs, protecting other devices from interference.The common mode choke consists of two conductive coils wound in opposite directions around a ferrite core. When a signal is passing through the coils in the same direction, this signal will be attenuated. The choke is very effective in attenuating common mode signals, since the inductance of the coils depends on the number of turns and the core material. The ferrite core material used for the DFKF-28-0005 model is particularly effective in sinking away noise current while allowing the carrying signal to pass unimpeded. The device inherently provides maximum EMI suppression due to its inherent properties. By controlling the number of turns or the copper foil trace pattern used in its production, the attenuation of the device can be controlled and matched with the frequency range and size of the core material.As its main application, the DFKF-28-0005 is used primarily in bus power supply and signal lines, where it can suppress conducted interferences from external sources. It is also applicable for data and communication lines, such as VoIP, wifi, and Zigbee, and in noise control applications for common mode power and signal lines.In summary, the DFKF-28-0005 common mode choke is a device used for suppressing electromagnetic interference. It is frequently installed in power and signal lines where it can effectively reduce the propagation of interference, providing excellent filtering performance for applications requiring intrinsic safety, signal integrity, and EMI.

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