744212100

Overview

The Würth Elektronik 744212100 is a surface-mount common mode filter choke from the WE-SL1 series. It features an inductance of 10 µH and a common mode impedance of 1.2 kΩ at 100 kHz. The component supports a maximum DC current of 300 mA with a maximum DC resistance of 240 mΩ. Its physical dimensions are 6.5 mm in length, 3.6 mm in width, and 1.65 mm in height. It operates within a temperature range of -40°C to +105°C.

Feature Summary

• Provides effective attenuation of common mode noise signals for data lines
• Utilizes a compact surface-mount design suitable for space-constrained PCB layouts
• Constructed with materials compliant with RoHS standards

Applications

• High-speed data line filtering in electronic circuits
• EMI suppression for signal integrity maintenance
• Common mode noise reduction in communication interfaces

Procurement Notes

Verify the specific datasheet version for the 744212100 part number to confirm exact electrical tolerances and thermal characteristics. Ensure that the selected packaging format aligns with automated assembly requirements. Cross-reference the manufacturer's official documentation for any recent product change notifications or compliance updates before finalizing procurement decisions.

Selection Notes

Select this component when a low-profile common mode filter is required for high-frequency noise suppression. The 10 µH inductance and 1.2 kΩ impedance provide a specific filtering profile suitable for sensitive data lines. Consider the 300 mA current rating to ensure the component does not saturate under normal operating conditions while maintaining effective filtering performance.

Part Context

This component belongs to the WE-SL1 series of common mode chokes manufactured by Würth Elektronik. The series is designed for surface-mount technology applications requiring efficient EMI filtering. These components are typically used in environments where space is limited and reliable noise suppression is critical for system performance.

Replacement Considerations

Consult the manufacturer's official substitution guide for verified alternative part numbers. Do not assume compatibility based on similar package sizes or general inductance values without verifying impedance curves and current ratings against the original specifications.

FAQ

What is the test frequency for the impedance specification?

The impedance of 1.2 kΩ is specified at a test frequency of 100 kHz.

Does this component support automotive applications?

The provided documentation for the 744212100 does not explicitly list AEC-Q200 qualification, unlike other models in the manufacturer's portfolio such as the 744238102.