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Product Detailed Parameters
- Description：CMC 17UH 4.5A 2LN 1.5KOHM SMD
- Series：WE-CMDC
- Mfr：Würth Elektronik
- Package：Tape & Reel (TR),Cut Tape (CT)
- Filter Type：Power, Signal Line
- Number of Lines：2
- Current Rating (Max)：4.5A
- DC Resistance (DCR) (Max)：21mOhm
- Voltage Rating - DC：80V
- Voltage Rating - AC：1000V (1kV)
- Operating Temperature：-40°C ~ 125°C
- Ratings：AEC-Q200
- Approval Agency：-
- Features：-
- Mounting Type：Surface Mount
- Size / Dimension：0.472" L x 0.433" W (12.00mm x 11.00mm)
- Height (Max)：0.236" (6.00mm)
- Package / Case：Horizontal, 4 PC Pad
- Inductance @ Frequency：17 µH @ 100 kHz
- Impedance @ Frequency：1.5 kOhms @ 100 MHz
- Qualification：-
- Grade：-
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Overview
The Würth Elektronik 744237152 is a surface-mount common mode filter from the WE-CMDC series, designed for data line applications. It features an inductance of 17 µH at 100 kHz and supports a DC current rating of 4.5 A. The component exhibits a DC resistance (DCR) of 21 mΩ and provides a common mode impedance of 1.5 kΩ at 100 MHz. It is certified to AEC-Q200 standards and operates within a temperature range of -40°C to +85°C. The physical dimensions are 12 mm in length, 11 mm in width, and 6 mm in height.
Feature Summary
- AEC-Q200 qualified for automotive reliability requirements
- Optimized for high-frequency data line noise suppression
- Compact surface-mount footprint for space-constrained designs
Applications
- Automotive infotainment systems
- Vehicle data bus interfaces
- High-speed digital signal protection
Procurement Notes
Verify the specific suffix codes against the official datasheet to ensure correct packaging and tolerance specifications. Confirm that the AEC-Q200 certification aligns with target automotive application requirements. Cross-reference the impedance curve at 100 MHz to validate noise suppression performance for the specific frequency band. Ensure the 4.5 A current rating meets the operational load conditions without saturation.
Selection Notes
Select this component when designing for automotive data lines requiring robust common mode noise rejection. The 17 µH inductance offers a balance between filtering efficiency and signal integrity for moderate-speed buses. Consider the 21 mΩ DCR for power loss calculations in high-current paths. The surface-mount package facilitates automated assembly processes while maintaining a low profile suitable for modern electronic enclosures.
Part Context
This part belongs to the WE-CMDC series, which specializes in common mode chokes for data transmission lines. Unlike general-purpose filters, these components are engineered to handle differential signals while attenuating common mode interference. The series includes various inductance values tailored for different bus speeds and current requirements in automotive and industrial environments.
Replacement Considerations
Consult the manufacturer's cross-reference guide for verified substitutes. Ensure any alternative maintains the 17 µH inductance and 4.5 A current rating. Verify that replacement parts also hold AEC-Q200 certification if used in automotive contexts. Check dimensional compatibility for PCB layout reuse.
