7446622003

Overview

The Würth Elektronik 7446622003 is a two-line through-hole common mode choke from the WE-LF series, designed for power line filtering. It features an inductance of 3.3 mH and a DC current rating of 1.5 A. The component has a maximum DC resistance of 0.15 Ω and operates within a temperature range of -40°C to +125°C. Physical dimensions include a diameter of 18 mm and a height of 13 mm. It holds UL and IEC approvals.

Feature Summary

• Provides effective common mode noise suppression for two-line power circuits
• Constructed with robust materials suitable for high-temperature environments up to 125°C
• Certified to UL and IEC safety standards for global compliance

Applications

• Power line filtering in electronic equipment
• Noise suppression in data line filters
• EMI reduction in industrial control systems

Procurement Notes

Verify the specific datasheet version and approval status (UL/IEC) directly with the manufacturer or authorized distributors before finalizing designs. Ensure that the through-hole mounting requirements and physical footprint dimensions align with the target PCB layout constraints. Confirm that the 1.5 A current rating meets the operational demands of the intended circuit under all expected thermal conditions.

Selection Notes

Select this component when designing circuits requiring significant common mode noise attenuation on two-line power inputs. The 3.3 mH inductance offers substantial impedance at lower frequencies, making it suitable for general EMI suppression tasks. Consider the 1.5 A current rating to ensure adequate headroom for peak loads without saturation. The through-hole package provides mechanical stability for applications subject to vibration.

Part Context

This part belongs to the WE-LF series of common mode chokes from Würth Elektronik. The series focuses on providing reliable filtering solutions for various electronic applications. Components in this family are characterized by their standardized pin configurations and consistent performance metrics across different inductance values, facilitating easier design integration and supply chain management.

Replacement Considerations

Consult official Wurth Elektronik documentation for verified substitute part numbers within the WE-LF series or other compatible families. Ensure any replacement matches the critical parameters of 3.3 mH inductance, 1.5 A current rating, and 0.15 Ω DC resistance. Verify that alternative components maintain the same through-hole package dimensions and safety certifications.