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Product Detailed Parameters
- Description：CMC 51UH 1A 2LN 5.5 KOHM SMD
- Series：WE-SL2
- Mfr：Würth Elektronik
- Package：Tape & Reel (TR),Cut Tape (CT)
- Filter Type：Power, Signal Line
- Number of Lines：2
- Current Rating (Max)：1A
- DC Resistance (DCR) (Max)：160mOhm
- Voltage Rating - DC：80V
- Voltage Rating - AC：-
- Operating Temperature：-40°C ~ 125°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Surface Mount
- Size / Dimension：0.362" L x 0.236" W (9.20mm x 6.00mm)
- Height (Max)：0.209" (5.30mm)
- Package / Case：Horizontal, 4 PC Pad
- Inductance @ Frequency：51 µH @ 1 kHz
- Impedance @ Frequency：5.5 kOhms @ 10 MHz
- Qualification：-
- Grade：-
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Overview
The Würth Elektronik 744227 is a surface-mount common mode choke from the WE-SL2 series, designed for power and signal line filtering. It features an inductance of 51 µH at 1 kHz and offers an impedance of 5.5 kΩ at 10 MHz. The component supports a maximum DC current of 1 A with a low DC resistance of 0.16 Ω. Rated for 80 V DC, it operates within a temperature range of -40 °C to +125 °C. The package dimensions are 9.2 mm x 6 mm x 5 mm, and it complies with AEC-Q200 automotive standards.
Feature Summary
- Utilizes bifilar winding construction on NiZn and MnZn ring cores for effective common mode noise suppression.
- Complies with AEC-Q200 automotive qualification standards for reliability in vehicle applications.
- Provides high impedance characteristics suitable for EMI suppression in power and signal lines.
Applications
- Automotive electronics systems requiring AEC-Q200 compliance
- Power supply input filtering
- Signal line noise suppression
Procurement Notes
Verify the specific ordering suffix to confirm packaging type, such as tape and reel or cut tape, as these affect handling procedures. Ensure the voltage rating of 80 V DC aligns with circuit requirements. Confirm RoHS and REACH compliance status if environmental regulations apply to the final assembly. Cross-reference the manufacturer part number 744227 with official Wurth Elektronik documentation to validate specifications before procurement.
Selection Notes
Select this component when a 51 µH inductance and 1 A current rating are required for common mode noise reduction. The 9.2 mm x 6 mm footprint suits space-constrained surface mount designs. Consider the 0.16 Ω DCR for efficiency calculations in power paths. The wide operating temperature range supports harsh environment deployments. Verify that the 5.5 kΩ impedance at 10 MHz meets the target EMI suppression frequencies.
Part Context
This component belongs to the WE-SL2 series of common mode line filters manufactured by Würth Elektronik. The series is characterized by its bifilar winding technology and suitability for both power and signal line applications. The 744227 variant specifically targets applications requiring robust noise filtering with automotive-grade reliability certifications.
Replacement Considerations
No public confirmed substitute part numbers are available in the provided source material.
FAQ
What is the impedance value of the 744227 at 10 MHz?
The impedance is 5.5 kΩ at 10 MHz.
Does the 744227 meet automotive standards?
Yes, the component complies with the AEC-Q200 automotive standard.
