B82727E6403A040

Overview

The B82727E6403A040 is a current-compensated ring core double choke designed for power line applications. It operates at a rated voltage of 250 V AC and supports currents from 0.3 A to 2 A. The inductance ranges from 1.1 mH to 22 mH, with a DC resistance between 1.1 Ohm and higher values depending on the specific variant. Operating temperature spans -40°C to +125°C. Dimensions are approximately 65.00 mm length, 35.00 mm width, and 61.00 mm height maximum.

Feature Summary

• Current-compensated ring core construction for effective common mode noise suppression
• Designed for horizontal mounting via through-hole technology
• Rated for 250 V AC power line environments
• Capable of operating within a wide temperature range of -40°C to +125°C

Applications

• Power supplies
• Battery chargers
• Portable devices

Procurement Notes

Verify the exact inductance value and current rating against the specific suffix code, as the B82727 series covers a broad range of parameters. Confirm that the physical dimensions (65x35x61 mm) fit the target enclosure. Ensure the through-hole footprint matches the PCB design. Check for RoHS compliance status if required by the end product regulations.

Selection Notes

Select this component when high common mode rejection is needed in compact power line filters. The ring core design offers high efficiency in noise suppression compared to other topologies. Consider the thermal management requirements given the +125°C max operating temperature. Verify that the DC resistance does not cause excessive voltage drop in the application circuit.

Part Context

This component belongs to the EPCOS (now TDK Electronics) B82727 series of power line chokes. These are widely used in industrial and consumer electronics for electromagnetic interference (EMI) filtering. The series is known for its robust construction and reliable performance in suppressing conducted emissions on AC power lines.

Replacement Considerations

Direct substitutes may include other current-compensated ring core chokes from TDK or competitors like Murata or Vishay. Ensure the replacement part matches the 250 V AC rating, current capacity, and physical dimensions. Verify that the inductance curve and saturation characteristics are compatible with the original design requirements.