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Product Detailed Parameters
- Description：CMC 1MH 3A 2LN TH
- Series：WE-CMB
- Mfr：Würth Elektronik
- Package：Bulk
- Filter Type：Power Line
- Number of Lines：2
- Current Rating (Max)：3A
- DC Resistance (DCR) (Max)：35mOhm
- Voltage Rating - DC：-
- Voltage Rating - AC：250V
- Operating Temperature：-40°C ~ 125°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Through Hole
- Size / Dimension：0.689" L x 0.512" W (17.50mm x 13.00mm)
- Height (Max)：0.866" (22.00mm)
- Package / Case：Vertical, 4 PC Pin
- Inductance @ Frequency：1 mH @ 10 kHz
- Impedance @ Frequency：-
- Qualification：-
- Grade：-
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Overview
The Würth Elektronik 744822301 is a WE-CMB series common mode choke designed for power line filtering. It features a manganese zinc core with an inductance of 1 mH and a maximum DC resistance of 35 mOhms. The component supports a rated DC current of 3 A and withstands up to 250 V AC. Operating within a temperature range of -40°C to +125°C, it utilizes a surface mount package.
Feature Summary
- Utilizes manganese zinc core material for effective noise suppression
- Designed for high current power line applications
- Surface mount construction for automated assembly
Applications
- Power supply input filtering
- DC-DC converter EMI suppression
- Industrial equipment power lines
Procurement Notes
Verify the specific datasheet version for the 744822301 to confirm exact physical dimensions and terminal configurations before PCB layout finalization. Ensure that the selected mounting method aligns with the thermal requirements of the 3 A current rating. Cross-reference the impedance characteristics against the target noise frequency spectrum to validate performance suitability for the intended circuit design.
Selection Notes
Select this component when a 1 mH inductance value is required for common mode noise attenuation in power circuits. The 3 A current rating makes it suitable for moderate power applications where low DC resistance is critical for efficiency. Consider the operating temperature range and package size constraints relative to the available board space and thermal management strategy.
Part Context
This part belongs to the WE-CMB series from Würth Elektronik, which specializes in common mode chokes for power electronics. The series is characterized by its use of manganese zinc ferrite cores, offering high permeability for effective interference suppression in demanding industrial and consumer environments.
Replacement Considerations
Consult official manufacturer substitution lists for verified equivalents. Generic cross-references may not match the specific magnetic properties or current handling capabilities.
