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The Würth Elektronik 7448640397 is a current-compensated common mode choke from the WE-FC series, designed for power line filtering and EMI suppression. It features an inductance of 3.9 mH at 10 kHz, a maximum DC resistance of 0.26 ohms, and a rated DC current of 1.3 A. The component operates within a temperature range of -40°C to +125°C and utilizes through-hole mounting.
Verify the specific datasheet version for the 7448640397 part number to confirm exact electrical tolerances and mechanical dimensions. Ensure compatibility with existing PCB footprints and thermal management requirements before finalizing procurement decisions.
Select this component when high current handling up to 1.3 A is required alongside significant common mode attenuation. The low DC resistance minimizes power loss, while the wide temperature range ensures reliability in demanding environments compared to standard chokes.
This part belongs to the WE-FC series of common mode chokes by Würth Elektronik. These components are engineered for robust performance in industrial and consumer electronics, offering a balance of high inductance and low DC resistance for efficient power line noise mitigation.
No public confirmed substitute part numbers are available in the provided documentation. Verify pinout and inductance values carefully if considering alternative manufacturers.
The inductance is 3.9 mH measured at 10 kHz.
The maximum DC current rating is 1.3 A.