7448031501

Overview

The Würth Elektronik 7448031501 is a WE-CMBNC series common mode power line choke utilizing nanocrystalline core technology. It features a 2 mH inductance with a tolerance of -30% to +50%. The component supports a maximum DC current of 15 A and exhibits a maximum DC resistance of 3.3 mΩ. Designed for through-hole PCB mounting, it operates within a temperature range of -40°C to +125°C. The unit has a cylindrical form factor with a 23 mm diameter and 7.5 mm lead pitch.

Feature Summary

• Utilizes nanocrystalline material for high magnetic performance
• Designed for single-phase EMI filtering applications
• Supports high saturation current capabilities

Applications

• Single-phase AC power line filtering
• EMI suppression in industrial equipment
• Power supply input stages

Procurement Notes

Verify the specific datasheet version (v1 or v2) provided by the supplier, as documentation variations exist. Confirm that the 3.3 mΩ DCR specification aligns with your circuit requirements, noting that some sources cite 3.2 mΩ. Ensure the -30% to +50% inductance tolerance is acceptable for your design margins before finalizing the order.

Selection Notes

Select this component when high current handling up to 15 A is required alongside effective common mode noise attenuation. The nanocrystalline core offers advantages over traditional ferrites in terms of permeability and saturation characteristics. Consider the through-hole package constraints and the 23 mm physical footprint during PCB layout planning.

Part Context

This part belongs to the WE-CMBNC family of common mode chokes from Würth Elektronik. The series is characterized by the use of nanocrystalline cores, distinguishing it from standard ferrite-based chokes. These components are engineered for robust performance in demanding power line environments, offering reliable EMI suppression for single-phase systems.

Replacement Considerations

No public confirmed substitute part numbers are available in the source data.