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Product Detailed Parameters
- Description：CMC 4.2MH 1.9A 2LN TH
- Series：WE-LF
- Mfr：Würth Elektronik
- Package：Tray
- Filter Type：Power Line
- Number of Lines：2
- Current Rating (Max)：1.9A
- DC Resistance (DCR) (Max)：120mOhm
- Voltage Rating - DC：-
- Voltage Rating - AC：250V
- Operating Temperature：-40°C ~ 125°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Through Hole
- Size / Dimension：0.906" L x 0.906" W (23.00mm x 23.00mm)
- Height (Max)：0.571" (14.50mm)
- Package / Case：Horizontal, 4 PC Pin
- Inductance @ Frequency：4.2 mH @ 10 kHz
- Impedance @ Frequency：-
- Qualification：-
- Grade：-
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Overview
The Würth Elektronik 7446722004 is a through-hole common mode filter choke from the WE-LF series. It features an inductance of 4.2 mH per line and a maximum DC resistance of 120 mΩ. The component supports a current rating of 1.9 A and operates within a temperature range of -40 °C to +125 °C. Its physical dimensions are 23 mm in diameter by 14.5 mm in height, designed for PCB mounting.
Feature Summary
- Provides common mode noise suppression for two-line circuits
- Utilizes leaded construction for printed circuit board mounting
- Engineered for operation across extended industrial temperature ranges
Applications
- Power supply input filtering
- Signal line noise reduction
- Electromagnetic interference suppression in electronic assemblies
Procurement Notes
Verify the specific part number against official manufacturer documentation to confirm electrical characteristics and mechanical dimensions. Ensure compatibility with existing design parameters before procurement. Cross-reference datasheets for any updates regarding material composition or compliance standards.
Selection Notes
Select this component based on required inductance values and current handling capabilities. Consider the physical footprint constraints and mounting style requirements of the target application. Evaluate thermal performance needs against the specified operating temperature range.
Part Context
This component belongs to the WE-LF series of common mode chokes manufactured by Würth Elektronik. The series offers various inductance options tailored for different filtering requirements. These components are designed to address electromagnetic compatibility challenges in diverse electronic environments.
Replacement Considerations
Consult official substitution guides for verified alternative part numbers. Ensure any replacement matches the original electrical specifications and physical dimensions to maintain circuit integrity.
