PA4040.001NL

Common Mode Chokes Overview

The PA4040.001NL is a through-hole integrated common mode and differential mode choke manufactured by Pulse Electronics. It features an EE20 core with NPB material, designed for power line filtering in two-line configurations. Key electrical parameters include an inductance of 4500 µH (minimum), a maximum DC resistance of 245 mOhms, and a rated DC current of 1 A. The component operates within a temperature range of -40°C to +125°C and exhibits a self-resonant frequency of 500 kHz. Its physical dimensions are 31.00 mm in length, 24.89 mm in width, and a maximum height of 16.50 mm, utilizing a vertical four-pin package.

Common Mode Chokes Feature Summary

• Integrates both common mode and differential mode chokes into a single component
• Utilizes EE20 core geometry with NPB magnetic material
• Designed for through-hole PCB mounting applications

Common Mode Chokes Applications

• Power line filtering
• Integrated EMI suppression circuits

Common Mode Chokes Procurement Notes

Verify the specific datasheet version when sourcing, as manufacturer documentation may contain updates to mechanical tolerances or material specifications. Confirm that the 4500 µH minimum inductance requirement aligns with your circuit design constraints. Ensure the through-hole footprint matches your PCB layout, specifically checking the 31.00 mm x 24.89 mm dimensions and 16.50 mm height clearance. Cross-reference the 245 mOhm maximum DCR limit against your thermal management calculations for continuous 1 A operation.

Common Mode Chokes Selection Notes

Select this component when space-constrained designs require combined common and differential mode noise attenuation without using separate discrete inductors. The EE20 form factor offers a balance between high inductance density and manageable physical size for through-hole assembly. Consider the 1 A current rating and 245 mOhm DCR for efficiency requirements. The wide operating temperature range supports industrial environments, while the integrated nature simplifies bill-of-materials and assembly processes compared to multi-component solutions.

Common Mode Chokes Part Context

This part belongs to the PA4040 series of integrated chokes from Pulse Electronics. These components are engineered to replace multiple discrete filter elements, reducing board space and assembly complexity. The series utilizes specific core materials optimized for power line applications, providing effective noise suppression across both common and differential modes in a standardized through-hole package suitable for automated insertion.

Common Mode Chokes Replacement Considerations

Direct substitutes must match the 4500 µH minimum inductance, 1 A current rating, and EE20 through-hole form factor. Verify that alternative parts maintain similar DCR limits and self-resonant frequencies to ensure equivalent filtering performance. Check for compatible mounting hole patterns and height restrictions if replacing in existing enclosures.