B82721A2601N020

Overview

The B82721A2601N020 is a current-compensated ring core double choke manufactured by EPCOS (TDK). It belongs to the B82721 series of power line chokes designed for common-mode interference suppression. The component features a ferrite core with radial termination and operates within a temperature range of -40°C to +125°C. Key electrical specifications include an inductance of 15 mH, a maximum DC current rating of 0.6 A, and a maximum DC resistance of 1.7 Ohms. It is rated for 250 V AC and complies with RoHS standards.

Feature Summary

• High resonance frequency achieved through special winding techniques
• Approximately 1% stray inductance ensures symmetrical interference suppression
• Suitable for wave soldering processes
• Design complies with EN 60938-2 (VDE 0565-2) standards

Applications

• Suppression of common-mode interferences in electronic circuits
• Use in electronic ballasts for lamps
• Integration into switch-mode power supplies

Procurement Notes

Verify the specific suffix N020 against official EPCOS/TDK documentation to confirm pin configuration and packaging details. Ensure the selected variant matches the required inductance tolerance and current ratings for the target application. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components. Confirm compliance with relevant safety approvals such as UL or VDE if required by the end equipment regulations.

Selection Notes

Select this component when high common-mode attenuation is required in compact power supply designs. The low stray inductance makes it suitable for applications demanding symmetrical interference suppression. Consider the 0.6 A current rating and 15 mH inductance values to ensure compatibility with the circuit's electromagnetic interference filtering requirements. Verify thermal performance within the specified operating temperature range.

Part Context

This component is part of the B82721A/K/J series of current-compensated ring core double chokes from EPCOS (TDK). These chokes are engineered for power line applications, offering robust performance in suppressing electromagnetic interference. The series supports various inductance and current ratings, catering to diverse electronic ballast and power supply needs while maintaining compliance with international safety standards.

Replacement Considerations

Check for direct substitutes within the B82721 series with matching inductance and current ratings. Verify mechanical dimensions and terminal styles to ensure PCB compatibility. Consult official TDK/EPCOS cross-reference guides for approved alternative part numbers.