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Product Detailed Parameters
- Description：CMC 33UH 300MA 2LN 2 KOHM SMD
- Series：WE-SLM
- Mfr：Würth Elektronik
- Package：Tape & Reel (TR),Cut Tape (CT)
- Filter Type：Power, Signal Line
- Number of Lines：2
- Current Rating (Max)：300mA
- DC Resistance (DCR) (Max)：270mOhm
- Voltage Rating - DC：80V
- Voltage Rating - AC：-
- Operating Temperature：-40°C ~ 125°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Surface Mount
- Size / Dimension：0.236" L x 0.130" W (6.00mm x 3.30mm)
- Height (Max)：0.138" (3.50mm)
- Package / Case：Horizontal, 4 Flat Lead
- Inductance @ Frequency：33 µH @ 100 kHz
- Impedance @ Frequency：2 kOhms @ 50 MHz
- Qualification：-
- Grade：-
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Overview
The Würth Elektronik 744242330 is a WE-SLM series surface-mount common mode choke. It features a 33 µH inductance with a tolerance of -30% to +50%. The component supports a maximum DC current of 300 mA and has a maximum DC resistance of 270 mΩ. Its impedance is 2 kΩ at the test frequency. The device operates within a temperature range of -40°C to +125°C and utilizes a ferrite core. Physical dimensions are 6 mm x 3.3 mm x 3.3 mm.
Feature Summary
- Dual-line filtering capability for common mode noise suppression
- Shielded wire-wound construction using ferrite core material
- Compact surface-mount design suitable for space-constrained PCBs
Applications
- Data line filtering in electronic circuits
- Common mode noise reduction in signal transmission paths
- EMI suppression in compact consumer electronics
Procurement Notes
Verify the specific part number 744242330 against official Wurth Elektronik datasheets to confirm electrical parameters such as 33 µH inductance and 300 mA current rating. Ensure compatibility with your PCB footprint dimensions of 6 x 3.3 x 3.3 mm. Check for RoHS compliance status in the latest manufacturer documentation before finalizing procurement decisions.
Selection Notes
Select this component when dual-channel common mode filtering is required for low-current data lines. The 300 mA saturation limit and 270 mΩ DC resistance define its power handling capabilities. Consider the -30% to +50% inductance tolerance for circuit design margins. The WE-SLM series offers a shielded alternative to unshielded chokes for improved EMI performance in dense layouts.
Part Context
This component belongs to the WE-SLM series from Wurth Elektronik, designed specifically as surface-mount common mode chokes. The series provides shielded solutions for EMI suppression in various electronic applications. The 744242330 variant is characterized by its 33 µH value and compact 1912 metric package size, fitting into standard SMD assembly processes.
Replacement Considerations
Cross-reference with other WE-SLM variants having similar 33 µH inductance and 300 mA ratings. Verify that substitute components match the 6 x 3.3 x 3.3 mm footprint and 270 mΩ DC resistance specifications to ensure mechanical and electrical compatibility.
