744229

Overview

The Würth Elektronik 744229 is a surface-mount common mode line filter from the WE-SL2 series. It features a bifilar winding structure with an inductance of 2 x 6500 μH and a maximum impedance of 18400 Ω. The component supports a rated current (IR) of 400 mA and has a DC resistance (RDC) of 0.95 Ω. Designed for reflow soldering, it operates within a temperature range of -40°C to +125°C.

Feature Summary

• Bifilar winding construction for effective common mode noise suppression
• Surface mount design compatible with standard reflow solder profiles
• Ferrite core material optimized for high impedance performance

Applications

• Suppression of electromagnetic interference in signal lines
• Common mode noise filtering in compact electronic assemblies
• Protection of sensitive circuits against conducted disturbances

Procurement Notes

Verify the specific part number 744229 against official Wurth Elektronik documentation to confirm electrical parameters such as inductance and current ratings. Ensure compatibility with your board's thermal management and space constraints before procurement.

Selection Notes

Select this component when high inductance values are required in a small surface-mount footprint. The bifilar design offers superior common mode rejection compared to standard chokes. Verify that the 400 mA current rating meets the operational requirements of the target circuit.

Part Context

This component belongs to the WE-SL2 series of surface mount common mode filters. The series is characterized by its bifilar winding technology, which provides high inductance density. It is designed for applications requiring robust noise suppression in limited space.

Replacement Considerations

Consult official Wurth Elektronik resources for verified substitute part numbers. Do not assume cross-compatibility with other manufacturers' components without verifying electrical specifications and physical dimensions.