B82725J2802N020

Overview

The EPCOS B82725J2802N020 is a current-compensated ring core double choke designed for power line applications. It features an inductance of 3.9 mH and supports a maximum DC current of 8 A with a DC resistance of 31 mOhm. The component utilizes a radial through-hole mounting configuration within a horizontal package measuring 44.00 mm x 42.40 mm x 25.00 mm. It operates reliably across a temperature range of -40°C to +125°C, providing effective electromagnetic interference suppression for two-line power circuits.

Feature Summary

• Current-compensated ring core design for efficient magnetic field cancellation
• Dual-line filtering capability for power line applications
• Robust construction supporting high current loads up to 8 A

Applications

• Power line filtering in industrial equipment
• Electromagnetic interference suppression in AC mains circuits
• Common mode noise reduction in power supply inputs

Procurement Notes

Verify the complete part number including suffixes against official manufacturer documentation to ensure correct inductance and current ratings. Confirm that the radial lead spacing and physical dimensions match the target PCB layout requirements. Check for specific safety certifications required by the end application region. Ensure storage conditions comply with moisture sensitivity levels if applicable.

Selection Notes

Select this component when dual-line power filtering with high current capacity is required. The 3.9 mH inductance offers a balance between impedance and saturation characteristics for 8 A applications. Consider the radial through-hole format for mechanical stability in high-vibration environments. Evaluate thermal performance at the maximum operating temperature of +125°C.

Part Context

This component belongs to the B82725A series of power line chokes manufactured by EPCOS (TDK). The series includes various inductance values tailored for different current ratings. These chokes are engineered for compact integration into power electronics systems requiring reliable common mode noise attenuation.

Replacement Considerations

Cross-reference with other B82725 series variants such as B82725A2802N20 for potential compatibility. Verify that substitute components maintain identical inductance, current rating, and physical footprint specifications.