744842742

Overview

The Würth Elektronik 744842742 is a WE-CMB Power Type S common mode choke featuring a nickel zinc ferrite core. It provides an inductance of 42 µH at 100 kHz with a maximum DC resistance of 9 mΩ and a current rating of 6.5 A. The component operates within a temperature range of -40°C to +125°C and utilizes through-hole mounting.

Feature Summary

• Broadband screening capability due to low capacitance winding technique
• Compact design achieving high current handling in small sizes
• High suppression of asymmetric interferences at low frequencies

Applications

• Power line filtering for electronic equipment
• Suppression of common mode noise in power supplies
• EMI reduction in industrial control systems

Procurement Notes

Verify the specific datasheet version for the 744842742 part number to confirm exact electrical tolerances and mechanical dimensions. Ensure that the through-hole package style matches the target PCB layout requirements before finalizing procurement decisions.

Selection Notes

Select this component when broadband interference suppression is required in power applications. The 6.5 A current rating and low DC resistance make it suitable for high-power density designs where space constraints limit the use of larger chokes.

Part Context

This component belongs to the WE-CMB series, which specializes in common mode chokes for power lines. The series is designed to handle significant currents while maintaining compact physical profiles, addressing the need for efficient EMI filtering in modern electronic assemblies.

Replacement Considerations

Consult official Wurth Elektronik documentation for verified substitute part numbers within the WE-CMB series or other compatible common mode choke families that meet identical electrical and mechanical specifications.