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Product Detailed Parameters
- Description：CMC 3.3MH 2.25A 2LN SMD
- Series：WE-LF
- Mfr：Würth Elektronik
- Package：Tape & Reel (TR),Cut Tape (CT)
- Filter Type：Power Line
- Number of Lines：2
- Current Rating (Max)：2.25A
- DC Resistance (DCR) (Max)：150mOhm
- Voltage Rating - DC：-
- Voltage Rating - AC：250V
- Operating Temperature：-40°C ~ 125°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Surface Mount
- Size / Dimension：0.917" L x 0.728" W (23.30mm x 18.50mm)
- Height (Max)：0.453" (11.50mm)
- Package / Case：Horizontal, 4 PC Pad
- Inductance @ Frequency：3.3 mH @ 10 kHz
- Impedance @ Frequency：-
- Qualification：-
- Grade：-
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Overview
The Würth Elektronik 7446632003 is a surface-mount common mode choke from the WE-LF series, designed for power line filtering. It features an inductance of 3.3 mH at 10 kHz and supports a maximum DC current of 2.25 A. The component has a maximum DC resistance of 150 mOhms and operates within a temperature range of -40°C to +125°C. It utilizes a horizontal package with four PCB pads and measures 23.30 mm in length, 18.50 mm in width, and 11.50 mm in height.
Feature Summary
- Surface-mount construction for automated assembly
- Shielded design for effective noise suppression
- High saturation current capability for power applications
Applications
- Power line filtering
- Common mode noise suppression
- AC mains input stages
Procurement Notes
Verify the specific part number against official manufacturer documentation to ensure compatibility with design requirements. Confirm that the surface-mount footprint dimensions match the PCB layout. Check for RoHS compliance status as indicated in the latest datasheet. Ensure the operating temperature range meets the environmental conditions of the final application.
Selection Notes
Select this component when a shielded surface-mount common mode choke is required for power lines. The 3.3 mH inductance provides significant attenuation for common mode interference. The 2.25 A current rating suits moderate power applications. Consider the physical dimensions to ensure adequate clearance on the circuit board.
Part Context
This component belongs to the WE-LF series of common mode chokes by Würth Elektronik. The series offers various inductance values and current ratings in surface-mount packages. These components are engineered for reliability in industrial and consumer electronics environments requiring robust EMI suppression.
Replacement Considerations
Check for direct substitutes within the WE-LF series with similar inductance and current ratings. Verify pinout compatibility if replacing with components from other manufacturers. Ensure equivalent shielding effectiveness and thermal performance.
