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Product Detailed Parameters
- Description：CMC 370MA 2LN 90 OHM SMD
- Series：WE-CNSW
- Mfr：Würth Elektronik
- Package：Tape & Reel (TR),Cut Tape (CT)
- Filter Type：Signal Line
- Number of Lines：2
- Current Rating (Max)：370mA
- DC Resistance (DCR) (Max)：300mOhm
- Voltage Rating - DC：50V
- Voltage Rating - AC：-
- Operating Temperature：-40°C ~ 125°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Surface Mount
- Size / Dimension：0.079" L x 0.047" W (2.00mm x 1.20mm)
- Height (Max)：0.055" (1.40mm)
- Package / Case：Horizontal, 4 PC Pad
- Inductance @ Frequency：-
- Impedance @ Frequency：90 Ohms @ 100 MHz
- Qualification：-
- Grade：-
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Overview
The Würth Elektronik 744231091 is a surface-mount common mode line filter from the WE-CNSW series. It features an inductance of 0.131 µH and an impedance of 90 Ohms at 100 MHz. The component supports a maximum DC current of 370 mA with a maximum DC resistance of 0.3 Ohms. Housed in a compact 0805 package measuring 2 mm x 1.2 mm x 1.2 mm, it operates within a temperature range of -40°C to +125°C and holds AEC-Q200 qualification.
Feature Summary
- Provides high common mode suppression capability specifically optimized for high-frequency applications
- Utilizes a compact 0805 surface mount footprint suitable for space-constrained PCB layouts
- Designed as a data line filter with current-compensated functionality
Applications
- High-speed data line noise suppression
- Automotive electronic circuits requiring AEC-Q200 compliance
- Common mode interference filtering in compact SMD designs
Procurement Notes
Verify the specific part number against official Wurth Elektronik documentation to confirm electrical parameters and package dimensions. Ensure compatibility with automated pick-and-place equipment due to the small 0805 form factor. Confirm that the operating temperature range meets the environmental requirements of the final assembly.
Selection Notes
Select this component when high-frequency common mode noise reduction is required in a minimal footprint. The 0.131 µH inductance and 90 Ohm impedance target specific frequency bands. Consider the 370 mA current rating and low DC resistance for signal integrity preservation in sensitive data lines.
Part Context
This component belongs to the WE-CNSW series of SMD common mode chokes. The series offers various case sizes including 0603, 0805, 1205, 1210, and 1812. These filters are engineered for excellent performance in suppressing electromagnetic interference on data lines while maintaining a low profile.
Replacement Considerations
Cross-reference with other WE-CNSW variants such as 744235110 or 744238252 if different inductance or current ratings are needed. Verify that substitute parts maintain the same 0805 package dimensions and AEC-Q200 qualification status.
