B82720K2601N040

Overview

The B82720K2601N040 is a current-compensated ring core double choke from the EPCOS B82720A/K series, designed for power line filtering. It features a rated inductance of 4.4 mH and supports a maximum DC current of 600 mA. The component has a typical DC resistance of 400 mOhms and operates within a temperature range of -40°C to +125°C. Constructed with a ferrite core and epoxy coating inside a polycarbonate case, it utilizes through-hole mounting with horizontal orientation.

Feature Summary

• Current-compensated design for effective common mode noise suppression on power lines
• Robust construction using ferrite core with UL 94 V-0 rated epoxy and polycarbonate housing
• Horizontal through-hole mounting configuration for standard PCB integration

Applications

• Power line filtering in industrial electronic equipment
• Noise suppression in automotive electronic systems
• EMI reduction in consumer information and communication technology devices

Procurement Notes

Verify the specific suffix N040 against official TDK/EPCOS documentation to confirm packaging and tape-and-reel specifications. Ensure the requested variant matches the exact electrical ratings and mechanical dimensions required for the target application. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and current production status before finalizing procurement orders.

Selection Notes

Select this component when a 4.4 mH inductance at 600 mA is required for horizontal through-hole power line applications. Consider the -40°C to +125°C operating range for environments with significant thermal variation. Evaluate the 400 mOhm DC resistance against circuit efficiency requirements. Confirm that the physical footprint and lead spacing align with the printed circuit board layout constraints.

Part Context

This component belongs to the B82720A/K series of current-compensated ring core double chokes manufactured by EPCOS (TDK). The series covers a range of inductances from 1.1 mH to 22 mH and currents from 0.3 A to 2 A. These chokes are engineered for 250 V AC power line applications, offering consistent performance across various industrial and consumer electronics sectors requiring reliable EMI filtering.

Replacement Considerations

Check the B82720A/K datasheet for other suffixes indicating different inductance or current ratings. Verify mechanical compatibility with existing PCB footprints if substituting with similar models from the same series.