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Product Detailed Parameters
- Description：CMC 100UH 300MA 2LN 4 KOHM SMD
- Series：WE-SLM
- Mfr：Würth Elektronik
- Package：Tape & Reel (TR),Cut Tape (CT)
- Filter Type：Signal Line
- Number of Lines：2
- Current Rating (Max)：300mA
- DC Resistance (DCR) (Max)：580mOhm
- 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：100 µH @ 100 kHz
- Impedance @ Frequency：4 kOhms @ 9 MHz
- Qualification：-
- Grade：-
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Overview
The Würth Elektronik 744242101 is a surface-mount common mode choke from the WE-SLM series. It features an inductance of 100 µH per line and an impedance of 4000 ohms at 100 kHz. The component supports a maximum DC current of 300 mA and has a maximum DC resistance of 600 mΩ. Its physical dimensions are 6 mm in length, 3.3 mm in width, and 3.3 mm in height. It operates within a temperature range of -40°C to +125°C.
Feature Summary
- High current capability for SMD applications
- Reflow solder profile compatibility
- Dual-line configuration for common mode filtering
Applications
- DC-DC converter input/output filtering
- Power supply noise suppression
- EMI reduction in compact electronic devices
Procurement Notes
Verify the specific package variant and tolerance requirements against the official datasheet before ordering. Confirm that the 300 mA current rating aligns with the application's peak load conditions. Ensure the PCB footprint matches the 6x3.3x3.3 mm dimensions specified by Würth Elektronik to guarantee proper mechanical fit and electrical performance.
Selection Notes
Select this component when high current handling is required in a small surface-mount form factor. The 100 µH inductance provides effective attenuation for common mode noise. Consider the 4000 ohm impedance at 100 kHz for EMI compliance needs. The wide operating temperature range ensures reliability in varied thermal environments.
Part Context
This part belongs to the WE-SLM series of surface-mount common mode chokes designed for power line filtering. The series emphasizes high current capacity and compact sizing, making it suitable for modern electronics where space is limited. It complements other Würth inductor families like WE-TFC and WE-LPSA for comprehensive power integrity solutions.
Replacement Considerations
Check for direct substitutes within the WE-SLM series with different inductance or current ratings. Verify pinout compatibility if replacing with components from other manufacturers. Ensure the replacement maintains the same impedance characteristics and thermal performance limits.
