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Product Detailed Parameters
- Description：CMC 19A 2LN 52 OHM SMD
- Series：WE-CMS
- Mfr：Würth Elektronik
- Package：Tape & Reel (TR),Cut Tape (CT)
- Filter Type：Power, Signal Line
- Number of Lines：2
- Current Rating (Max)：19A
- DC Resistance (DCR) (Max)：3mOhm
- Voltage Rating - DC：-
- Voltage Rating - AC：-
- Operating Temperature：-40°C ~ 125°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Surface Mount
- Size / Dimension：0.335" L x 0.220" W (8.50mm x 5.60mm)
- Height (Max)：0.126" (3.20mm)
- Package / Case：0302 (0805 Metric)
- Inductance @ Frequency：-
- Impedance @ Frequency：52 Ohms @ 100 MHz
- Qualification：-
- Grade：-
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Overview
The Würth Elektronik 7427521 is a surface-mount common mode choke belonging to the WE-CMS series. It features two lines with an impedance of 52 Ohms at 100 MHz and a rated current of 19 A. The component has a maximum DC resistance of 3 milliohms. Its physical dimensions are 8.50 mm in length, 5.60 mm in width, and a maximum height of 3.20 mm. It operates within a temperature range of -40°C to +125°C.
Feature Summary
- Provides effective suppression of common mode noise for power and signal lines
- Features low DC resistance to minimize insertion loss
- Supports high current handling capability up to 19 A
Applications
- Power supply line filtering
- Signal line noise suppression
- Automotive electronics applications requiring AEC-Q200 compliance
Procurement Notes
Verify the specific ordering suffix to confirm packaging type, such as tape and reel or cut tape. Confirm RoHS compliance status through official documentation. Ensure the selected variant matches the required impedance and current ratings for the target circuit design before finalizing procurement.
Selection Notes
Select this component when high current capacity and low DC resistance are critical for maintaining signal integrity. The compact SMD package suits space-constrained designs. Verify that the operating temperature range meets environmental requirements and that the impedance profile aligns with the targeted noise frequency spectrum.
Part Context
This part belongs to the WE-CMS series of common mode chokes from Würth Elektronik. These components are designed for surface mount technology and offer robust performance in suppressing electromagnetic interference. The series supports various current ratings and impedance values to accommodate diverse electronic filtering needs.
Replacement Considerations
Consult official manufacturer substitution guides for verified alternatives. Cross-reference impedance, current rating, and physical dimensions to ensure compatibility without modifying the existing board layout or circuit performance characteristics.
FAQ
Is the 7427521 suitable for automotive applications?
Yes, the component is specified as AEC-Q200 qualified, making it suitable for automotive electronics applications.
What is the maximum operating temperature for this choke?
The maximum operating temperature for the 7427521 is +125°C.
