7446222003

Overview

The Würth Elektronik 7446222003 is a through-hole common mode choke from the WE-LF Type MV series, designed for mains power line filtering. It features an inductance of 3.3 mH at 10 kHz and supports a maximum current rating of 2 A with a DC resistance of 75 mOhms. The component operates within a temperature range of -40°C to +125°C and carries a 250 V AC voltage rating. Its vertical package includes four PC pins, measuring 23.50 mm in length, 16.00 mm in width, and up to 25.50 mm in height.

Feature Summary

• Provides effective common mode noise suppression for two-line power circuits
• Constructed with a robust vertical through-hole mounting configuration
• Engineered for high-temperature stability across industrial ranges

Applications

• Mains power line EMI filtering
• Power supply input stages
• Industrial equipment noise reduction

Procurement Notes

Verify the specific datasheet version for the 7446222003, as manufacturer documentation may contain corrections or updates regarding electrical tolerances and physical dimensions. Confirm that the 75 mOhm DC resistance aligns with your circuit requirements before finalizing procurement decisions.

Selection Notes

Select this component when designing circuits requiring 3.3 mH inductance for common mode interference suppression on 250 V AC lines. Ensure the PCB layout accommodates the vertical 4-pin footprint and verify that the 2 A current rating meets the load demands without exceeding thermal limits.

Part Context

This part belongs to the WE-LF Type MV series, which specializes in common mode chokes for mains applications. The series offers various inductance values tailored for different power line filtering needs, providing reliable performance in demanding electronic environments.

Replacement Considerations

Check for direct substitutes within the WE-LF series that match the 3.3 mH inductance and 2 A current rating. Verify pin compatibility and dimensional constraints before considering alternative manufacturers.