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Product Detailed Parameters
- Description：CMC 9UH 3.5A 2LN 800 OHM SMD
- Series：WE-SL5
- Mfr：Würth Elektronik
- Package：Tape & Reel (TR),Cut Tape (CT)
- Filter Type：Power, Signal Line
- Number of Lines：2
- Current Rating (Max)：3.5A
- DC Resistance (DCR) (Max)：11mOhm
- Voltage Rating - DC：80V
- Voltage Rating - AC：-
- Operating Temperature：-40°C ~ 125°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Surface Mount
- Size / Dimension：0.374" L x 0.327" W (9.50mm x 8.30mm)
- Height (Max)：0.209" (5.30mm)
- Package / Case：Horizontal, 4 PC Pad
- Inductance @ Frequency：9 µH @ 100 kHz
- Impedance @ Frequency：800 Ohms @ 120 MHz
- Qualification：-
- Grade：-
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Overview
The Würth Elektronik 744273801 is a surface-mount common mode line filter from the WE-SL5 HC series. It features an inductance of 9 µH at 100 kHz and supports a maximum DC current of 3.5 A. The component exhibits a maximum DC resistance of 11 mΩ and provides an impedance of 800 Ω at 120 MHz. Designed for power and signal lines, it utilizes a ferrite core with sectional winding construction. The device operates within a temperature range of -40°C to +125°C and measures 9.5 mm x 8.3 mm x 5.3 mm.
Feature Summary
- Sectional winding construction for effective electromagnetic noise suppression
- Low-profile surface-mount design suitable for space-constrained applications
- High current handling capability with low DC resistance
Applications
- Power supply input filtering
- Signal line noise suppression
- Electromagnetic interference reduction in electronic circuits
Procurement Notes
Verify the complete part number including suffix digits to ensure correct inductance and current ratings. Confirm RoHS compliance and specific packaging options such as tape and reel or cut tape during ordering. Check for any recent product change notices regarding housing materials or dimensions before finalizing procurement plans.
Selection Notes
Select this component when high current capacity and low profile are required for common mode noise suppression. The 9 µH inductance and 800 Ω impedance at 120 MHz make it suitable for broadband noise attenuation. Ensure the operating environment stays within the specified -40°C to +125°C temperature range for reliable performance.
Part Context
This component belongs to the WE-SL5 HC series of surface-mount common mode chokes. The series is characterized by high current ratings and compact dimensions. The 744273801 variant specifically offers 9 µH inductance and 3.5 A current handling, distinguishing it from other variants in the family with different electrical specifications.
Replacement Considerations
Cross-reference with other WE-SL5 HC variants for similar form factors but verify inductance and current ratings match requirements. Ensure substitute components support the same 120 MHz impedance characteristics and operate within the same temperature limits.
