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Product Detailed Parameters
- Description：WE-CMB COMMON MODE POWER LINE CH
- Series：WE-CMB
- Mfr：Würth Elektronik
- Package：Bulk
- Filter Type：Power Line
- Number of Lines：2
- Current Rating (Max)：4A
- DC Resistance (DCR) (Max)：50mOhm
- Voltage Rating - DC：-
- Voltage Rating - AC：250V
- Operating Temperature：-25°C ~ 125°C
- Ratings：-
- Approval Agency：ENEC, VDE
- Features：-
- Mounting Type：Through Hole
- Size / Dimension：1.083" L x 0.728" W (27.50mm x 18.50mm)
- Height (Max)：1.299" (33.00mm)
- Package / Case：Vertical, 4 PC Pin
- Inductance @ Frequency：5 mH @ 10 kHz
- Impedance @ Frequency：-
- Qualification：-
- Grade：-
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Overview
The Würth Elektronik 744824405 is a WE-CMB series common mode power line choke designed for high-current applications. It features an inductance of 5 mH and supports a maximum DC current rating of 4 A. The component exhibits a maximum DC resistance of 0.05 ohms, ensuring low insertion loss. It operates within a temperature range of -40°C to +125°C and utilizes surface mount technology for PCB integration.
Feature Summary
- Provides effective common mode noise suppression for power lines
- Engineered for high DC current handling capabilities
- Constructed with shielded design to minimize electromagnetic interference
Applications
- Power supply input filtering
- Industrial equipment EMI suppression
- Consumer electronics power stages
Procurement Notes
Verify the specific package dimensions and pin configuration against the official datasheet before finalizing layout. Confirm that the thermal management requirements align with the specified operating temperature range of -40°C to +125°C. Ensure the selected mounting method supports the mechanical stress limits defined by the manufacturer for reliable long-term performance.
Selection Notes
Select this component when a 5 mH inductance value is required for common mode noise reduction in circuits carrying up to 4 A. The low DC resistance of 0.05 ohms makes it suitable for efficiency-sensitive designs. Consider the physical footprint and lead-free compliance if environmental regulations apply to the end product assembly process.
Part Context
This part belongs to the WE-CMB series from Würth Elektronik, which specializes in common mode chokes for power line applications. The series is characterized by its robust construction and suitability for industrial and commercial environments requiring reliable EMI filtering solutions.
Replacement Considerations
Cross-reference with other WE-CMB variants or equivalent common mode chokes from different manufacturers only if they match the 5 mH inductance, 4 A current rating, and 0.05 ohm DCR specifications exactly.
