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Product Detailed Parameters
- Description：CMC 10MH 500MA 2LN SMD
- Series：WE-UCF
- Mfr：Würth Elektronik
- Package：Tape & Reel (TR),Cut Tape (CT)
- Filter Type：Signal Line
- Number of Lines：2
- Current Rating (Max)：500mA
- DC Resistance (DCR) (Max)：920mOhm
- Voltage Rating - DC：80V
- Voltage Rating - AC：-
- Operating Temperature：-40°C ~ 125°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Surface Mount
- Size / Dimension：0.571" L x 0.492" W (14.50mm x 12.50mm)
- Height (Max)：0.307" (7.80mm)
- Package / Case：Horizontal, 4 Flat Lead
- Inductance @ Frequency：10 mH @ 10 kHz
- Impedance @ Frequency：-
- Qualification：-
- Grade：-
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Overview
The Würth Elektronik 744290103 is a WE-UCF series common mode choke designed for signal, data lines, and power supplies. It features an inductance of 10 mH with a ±30% tolerance at a test frequency of 10 kHz. The component supports a maximum DC current of 500 mA and has a maximum DC resistance of 0.92 Ohms. Physical dimensions are 14 mm length, 12.5 mm width, and 7.8 mm height. It operates within a temperature range of -40°C to +125°C.
Feature Summary
- Universally applicable design for signal, data lines, and power supply filtering
- SMD sectional construction for surface mount PCB integration
- Unshielded configuration suitable for general EMI suppression
Applications
- Signal line filtering
- Data line noise suppression
- Power supply EMI reduction
Procurement Notes
Verify the specific part number against official manufacturer documentation to confirm electrical parameters such as inductance and current ratings. Ensure compatibility with your PCB footprint and thermal requirements. Cross-reference datasheets from authorized distributors to validate RoHS compliance and package details before finalizing procurement decisions.
Selection Notes
Select this component when designing circuits requiring common mode noise suppression for both low-voltage signal paths and power rails. Consider the 500 mA current rating and 0.92 Ohm resistance for voltage drop calculations. Evaluate the unshielded nature regarding potential magnetic interference with nearby sensitive components during layout.
Part Context
This component belongs to the WE-UCF series from Würth Elektronik, which specializes in common mode chokes for versatile electronic applications. The series offers SMD solutions for various inductance values, providing designers with standardized options for EMI mitigation in compact form factors across industrial and consumer electronics.
Replacement Considerations
Check for direct substitutes within the WE-UCF series that match the 10 mH inductance and 500 mA current specifications. Verify pinout compatibility and physical dimensions if replacing on existing boards. Consult manufacturer cross-reference lists for validated alternatives.
