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Product Detailed Parameters
- Description：CMC 100UH 1A 2LN 40 KOHM SMD
- Series：WE-SCC
- Mfr：Würth Elektronik
- Package：Tape & Reel (TR),Cut Tape (CT)
- Filter Type：Signal Line
- Number of Lines：2
- Current Rating (Max)：1A
- DC Resistance (DCR) (Max)：280mOhm
- Voltage Rating - DC：80V
- Voltage Rating - AC：-
- Operating Temperature：-40°C ~ 125°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Surface Mount
- Size / Dimension：0.492" L x 0.492" W (12.50mm x 12.50mm)
- Height (Max)：0.413" (10.50mm)
- Package / Case：Horizontal, 4 PC Pad
- Inductance @ Frequency：100 µH @ 100 kHz
- Impedance @ Frequency：40 kOhms @ 4 MHz
- Qualification：-
- Grade：-
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Overview
The Würth Elektronik 744284101 is a surface-mount common mode choke from the WE-SCC series, designed for signal line filtering. It features two lines with an inductance of 100 µH at 100 kHz and offers an impedance of 40 kOhms at 4 MHz. The component supports a maximum DC current of 1A and has a maximum DC resistance (DCR) of 280 milliohms. Rated for 80V DC, it operates within a temperature range of -40°C to 125°C. The package dimensions are 12.50mm x 12.50mm x 10.50mm.
Feature Summary
- Provides effective common mode noise suppression for differential signal lines
- Utilizes a Stromkompensierter design for high efficiency in SMD applications
- Supports operation in demanding thermal environments up to 125°C
Applications
- Signal line filtering in electronic circuits
- Common mode noise reduction in data transmission interfaces
- EMI suppression in compact surface mount assemblies
Procurement Notes
Verify the specific ordering suffix to ensure compatibility with required packaging formats such as tape and reel or cut tape. Confirm that the 1A current rating and 280 milliohm DCR meet the circuit requirements. Check RoHS3 compliance status if restricted substances are a concern. Ensure the 12.50mm footprint fits the PCB layout constraints.
Selection Notes
Select this component when a 100 µH inductance and 1A current handling capability are required for common mode noise suppression. The 40 kOhm impedance at 4 MHz makes it suitable for higher frequency interference. Consider the 10.50mm height for vertical clearance. Compare against lower current alternatives if power consumption is a primary constraint.
Part Context
This part belongs to the WE-SCC series of Stromkompensierter SMD Line Filters by Würth Elektronik. These components are engineered for compact designs requiring reliable signal integrity. The series is characterized by its ability to handle significant currents while maintaining low DC resistance, making it distinct from general-purpose chokes.
Replacement Considerations
Check for direct substitutes within the WE-SCC series that match the 100 µH inductance and 1A current rating. Verify pinout compatibility and physical dimensions before substitution. Ensure the replacement maintains the 40 kOhm impedance specification at 4 MHz for equivalent noise performance.
