B82721A2152N001

Overview

The B82721A2152N001 is a current-compensated ring core double choke from the TDK EPCOS B82721 series, designed for power line applications. It features a ferrite core and polycarbonate case with polyurethane potting. Key electrical parameters include a rated inductance of 2.2 mH (±30% tolerance), a maximum DC current of 6 A, and a maximum DC resistance of 45 mΩ. The component operates within a temperature range of -40 °C to +125 °C and has a rated voltage of 250 V AC. Physical dimensions are 17.9 mm length, 17.3 mm width, and 12.6 mm height.

Feature Summary

• Current-compensated ring core construction for symmetrical interference suppression
• High resonance frequency achieved through special sector winding technique
• Flame-retardant case and potting compliant with UL 94 V-0 standards

Applications

• Power line chokes for electromagnetic compatibility
• Common mode interference suppression in electronic equipment
• Switching power supply input filtering

Procurement Notes

Verify the specific suffix N001 against the manufacturer's latest datasheet to confirm pinout and packaging configuration. Ensure the selected variant matches the required 2.2 mH inductance and 6 A current rating for the target circuit design. Cross-reference RoHS compliance status if environmental regulations apply to the final assembly.

Selection Notes

Select this component when high current handling up to 6 A is required alongside significant common mode noise attenuation. The low DC resistance minimizes power loss in the power path. Consider the physical footprint constraints as the rectangular package requires adequate clearance on the PCB layout for proper mounting and thermal dissipation.

Part Context

This part belongs to the B82721 series of power line chokes manufactured by TDK Electronics, formerly EPCOS. The series utilizes current-compensated ring core technology to provide effective EMC filtering for single-phase AC lines. These components are widely used in industrial and consumer electronics to meet regulatory emission standards.

Replacement Considerations

Direct substitutes within the same family include B82721A2122N020 and B82721A2152N001 variants with different inductance values. Verify that any replacement maintains the same 250 V AC rating and current compensation characteristics to ensure equivalent performance in the application.