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Product Detailed Parameters
- Description：CMC 3.3MH 4A 2LN TH
- Series：WE-LF
- Mfr：Würth Elektronik
- Package：Tray
- Filter Type：Power Line
- Number of Lines：2
- Current Rating (Max)：4A
- DC Resistance (DCR) (Max)：65mOhm
- Voltage Rating - DC：-
- Voltage Rating - AC：250V
- Operating Temperature：-40°C ~ 125°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Through Hole
- Size / Dimension：1.280" L x 0.846" W (32.50mm x 21.50mm)
- Height (Max)：1.398" (35.50mm)
- Package / Case：Vertical, 4 PC Pin
- Inductance @ Frequency：3.3 mH @ 10 kHz
- Impedance @ Frequency：-
- Qualification：-
- Grade：-
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Overview
The Würth Elektronik 7446424003 is a WE-LF Type XV common mode choke designed for power line applications. It features an inductance of 2 x 3.3 mH and supports a maximum DC current of 4A. The component has a DC resistance of 0.065 Ohms per line and operates at temperatures up to +125°C. It utilizes a through-hole mounting type with vertical orientation and four PC pins, ensuring reliable integration into electronic circuits requiring EMI suppression.
Feature Summary
- Designed to suppress common mode noise and improve EMI performance in two-line power systems
- Utilizes through-hole mounting technology for secure mechanical attachment
- Constructed to withstand high operating temperatures up to +125°C
Applications
- Power line EMI filtering
- Common mode noise suppression in electronic devices
- Two-line power system protection
Procurement Notes
Verify the specific datasheet version from Würth Elektronik or authorized distributors to confirm mechanical dimensions and thermal characteristics. Ensure the through-hole footprint matches the PCB design requirements. Cross-reference the part number 7446424003 with official manufacturer catalogs to validate availability and technical specifications before procurement.
Selection Notes
Select this component when designing circuits that require robust common mode noise reduction for power lines. Consider the 4A current rating and 3.3 mH inductance values to ensure compatibility with the target application's electrical demands. Verify that the through-hole package fits the manufacturing process and spatial constraints of the final assembly.
Part Context
This component belongs to the WE-LF Type XV series of common mode chokes from Würth Elektronik. These components are engineered for general-purpose EMI suppression tasks. The series offers various inductance and current ratings to suit different power line requirements while maintaining consistent quality and reliability standards across the product line.
Replacement Considerations
Consult official Wurth Elektronik documentation for confirmed substitute part numbers within the WE-LF series. Ensure any replacement maintains equivalent inductance, current rating, and physical dimensions to guarantee functional compatibility without redesigning the host circuit.
