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Product Detailed Parameters
- Description：CMC 500UH 400MA 4LN SMD
- Series：WE-SL
- Mfr：Würth Elektronik
- Package：Tape & Reel (TR),Cut Tape (CT)
- Filter Type：Signal Line
- Number of Lines：4
- Current Rating (Max)：400mA
- DC Resistance (DCR) (Max)：-
- Voltage Rating - DC：80V
- Voltage Rating - AC：-
- Operating Temperature：-40°C ~ 125°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Surface Mount
- Size / Dimension：-
- Height (Max)：0.238" (6.05mm)
- Package / Case：Horizontal, 8 Gull Wing
- Inductance @ Frequency：500 µH @ 100 kHz
- Impedance @ Frequency：-
- Qualification：-
- Grade：-
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Overview
The Würth Elektronik 744203 is a WE-SL series surface-mount common mode choke designed for signal line noise suppression. It features four channels with an inductance of 500 µH at 100 kHz and a maximum DC current rating of 400 mA. The component has a maximum impedance of 3 kOhms and operates within a temperature range of -40°C to +125°C. Its compact SMD package measures 12.7 mm x 10.5 mm x 5.75 mm, suitable for automated PCB assembly.
Feature Summary
- Four-channel configuration for multi-line signal filtering
- High inductance value effective for noise suppression
- Automotive-grade reliability qualification
- Surface-mount design for compact board integration
Applications
- Data bus line protection
- Signal integrity enhancement in industrial equipment
- Noise filtering for automotive electronic control units
- Communication interface circuitry
Procurement Notes
Verify the specific ordering suffix to confirm packaging type, such as cut tape or reel, as these affect handling procedures. Ensure the procurement channel provides valid RoHS compliance documentation and original manufacturer traceability records. Cross-reference the full part number against official Wurth Elektronik catalogs to avoid counterfeit components.
Selection Notes
Select this component when multi-line common mode noise reduction is required for low-current signal paths. Evaluate the 400 mA current rating against peak operational loads to prevent saturation. Consider the physical footprint constraints relative to the 12.7 mm x 10.5 mm dimensions during layout planning.
Part Context
This component belongs to the WE-SL series of common mode chokes from Würth Elektronik. The series specializes in surface-mount solutions for electromagnetic interference suppression. The 744203 variant specifically addresses applications requiring four independent filtering channels within a single compact package.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing footprints and electrical specifications before considering alternative manufacturers.
