B82721K2501N001

Overview

The B82721K2501N001 is a current-compensated ring core choke manufactured by EPCOS (TDK). It features an inductance of 18 mH and supports a rated current of 500 mA. The component has a maximum DC resistance of 1.2 Ohms and operates within a temperature range of -40°C to +125°C. Its physical dimensions are 18.2 mm in length, with a radial through-hole termination style.

Feature Summary

• Current-compensated ring core construction for effective common mode noise suppression
• Designed for power line filtering applications with high inductance stability
• Radial leaded package suitable for through-hole mounting processes

Applications

• Power supply input filtering
• Common mode interference suppression in electronic circuits
• EMI reduction in AC/DC converter stages

Procurement Notes

Verify the specific suffix N001 against official TDK documentation to confirm pin configuration and packaging details. Ensure the selected variant matches the required inductance tolerance and current rating for your circuit design. Cross-reference the manufacturer's latest datasheet to confirm compliance with RoHS directives and other relevant regulatory standards before finalizing procurement.

Selection Notes

Select this component when a compact, high-inductance solution is needed for low-current power lines. The 18 mH value provides significant attenuation for common mode noise. Consider the 500 mA current rating to ensure it exceeds the peak operating current of the target application. The radial form factor simplifies PCB layout compared to surface mount alternatives.

Part Context

This part belongs to the B82721 series of power line chokes from EPCOS. These components are engineered for general-purpose electromagnetic compatibility (EMC) improvement. The series utilizes ferrite ring cores to achieve high magnetic permeability and stable inductance characteristics across a wide frequency range.

Replacement Considerations

Direct substitutes include B82721A/K series variants with matching inductance and current ratings. Verify that any replacement maintains the same radial footprint and terminal spacing to ensure mechanical compatibility without PCB redesign.