7446821027

Overview

The Würth Elektronik 7446821027 is a WE-LF Type LH common mode choke designed for power line filtering. It features an inductance of 27 mH and supports a maximum DC current rating of 1 A. The component exhibits a maximum DC resistance of 0.64 Ohms. It operates within a temperature range from -40°C to +125°C. This shielded SMD device utilizes wire-wound technology with ferrite core construction, ensuring effective noise suppression in compact electronic assemblies.

Feature Summary

• Provides high common mode noise attenuation for sensitive power lines
• Utilizes sector winding wire-wound construction for stability
• Offers robust thermal performance across extended industrial temperature ranges

Applications

• Power supply input filtering
• Data line noise suppression
• EMI reduction in consumer electronics

Procurement Notes

Verify the manufacturer part number 7446821027 against official Wurth Elektronik documentation to confirm specifications. Ensure compatibility with PCB footprint dimensions and soldering profiles. Cross-reference electrical ratings such as inductance and current handling with system requirements before integration.

Selection Notes

Select this component when high inductance values are required for low-frequency common mode noise suppression. Consider the 1 A current rating and 0.64 Ohm resistance limits relative to circuit load. Evaluate the 0603 or similar small form factor constraints against available board space.

Part Context

This component belongs to the WE-LF series of wire-wound surface mount inductors from Würth Elektronik. The series focuses on providing reliable shielding and stable inductance characteristics for automotive and industrial applications requiring compact EMI filter solutions.

Replacement Considerations

Consult official Wurth Elektronik substitution guides for verified alternatives. Generic equivalents may not match the specific sector winding geometry or ferrite material properties required for identical noise performance.