B82721J2401N023

Overview

The B82721J2401N023 is a current-compensated ring core double choke manufactured by EPCOS (TDK). It functions as a power line common mode filter designed for 250 V AC applications. The component features an inductance of 27 mH with a tolerance of 30%. It supports a maximum DC current of 400 mA and has a maximum DC resistance of 1.7 Ohms. The operating temperature range spans from -40 °C to +125 °C. Physical dimensions include a length of 18.2 mm, width of 13.2 mm, and height of 20.3 mm. The termination style is radial through-hole mounting.

Feature Summary

• Suppresses common-mode interference in compact switch-mode power supplies and converters
• Utilizes ferrite ring core construction for effective electromagnetic compatibility filtering
• Designed for high-temperature stability within electronic circuits

Applications

• Compact switch-mode power supplies
• Power converters of various types
• Electromagnetic compatibility filtering in electronic equipment

Procurement Notes

Verify the specific ordering suffix N023 against official TDK/EPCOS documentation to confirm exact physical and electrical specifications. Ensure the component meets required voltage ratings and current handling capabilities for the target application. Cross-reference datasheet parameters such as inductance and DC resistance to validate performance requirements before procurement.

Selection Notes

Select this component for applications requiring common mode noise suppression in power lines up to 250 V AC. Consider the 400 mA current rating and 27 mH inductance when designing filters for switch-mode power supplies. Evaluate the radial through-hole package and dimensional constraints to ensure compatibility with the printed circuit board layout and mechanical housing requirements.

Part Context

This component belongs to the B82721 series of current-compensated ring core double chokes. The series is engineered for power line choking applications, offering solutions for suppressing electromagnetic interference in various electronic devices. These components are integral to ensuring stable operation and protecting circuits from common mode noise in modern power electronics.

Replacement Considerations

Consult official TDK/EPCOS substitution guides for verified alternatives. Ensure any replacement matches the 27 mH inductance, 400 mA current rating, and 250 V AC voltage class. Verify that physical dimensions and terminal configurations are compatible with existing PCB footprints.