744834407

Voltage Rating - AC:	250V
Package / Case:	Horizontal, 4 PC Pin
Height (Max):	0.866" (22.00mm)
Size / Dimension:	1.280" L x 1.102" W (32.50mm x 28.00mm)
Mounting Type:	Through Hole
Features:	--
Approvals:	--
Ratings:	--
Operating Temperature:	-40°C ~ 125°C
Series:	WE-CMBH
Voltage Rating - DC:	--
DC Resistance (DCR) (Max):	80 mOhm
Current Rating (Max):	3.5A
Inductance @ Frequency:	7mH @ 10kHz
Number of Lines:	2
Filter Type:	Power Line
Part Status:	Active
Packaging:	Tray

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Common Mode ChokesCommon mode chokes or CMCs are devices used to reduce the level of electromagnetic interference (EMI) and radio frequency interference (RFI) on power circuits. Common mode chokes typically consist of two windings around a ferrite or ferrimagnetic core, providing choke impedance at frequencies ranging from audio and DC up to the UHF region.The ferrite is a special material designed to provide a very resistive path for high frequency signals, thereby preventing them from interfering with power circuits and other sensitive components. Common mode chokes also reduce the level of RFI on power line conductors between components and the introduction of EMI to the system.The 744834407 application field of common mode chokes is wide-ranging. They are used for reducing the level of EMI on heavy-duty industrial motor controls, telecom and control systems, and AC/DC converters. They’re also used to decrease the amount of interference introduced from external sources such as automotive, marine, and radio-based power sources.Common mode chokes also protect electronic circuits against the introduction of EMI from sources such as lightning strikes. Common mode chokes are designed to block EMI signals from entering a system, while still conforming to the system’s electrical safety requirements.The 744834407 application field of common mode chokes also includes data and signal lines, as well as industrial control systems. CMCs are designed to reject EMI signals from interfering with data lines and signals, while still allowing normal operations to continue. CMCs are designed to provide choke impedance at frequencies ranging from audio and DC up to the UHF region, providing a very resistive path for high frequency signals.The working principle of common mode chokes lies in its construction. A pair of windings are wrapped around the ferrite core to form a two-winding inductor, with one winding connected in common to the power system supply lines. The high-frequency currents are effectively curved by the combination of the CMC\'s windings and core material, then the residual current follows the path provided by the inductor. This reduces the amount of interference and prevents it from entering your system.Common mode chokes have a wide range of uses, from controlling EMI on heavy-duty industrial motor controls to reducing interference from external sources. By using a pair of windings around a ferrite core, the CMC effectively blocks EMI and RFI from entering your system, improving the system\'s performance and keeping your sensitive components safe.

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