B82720K2202N040

Overview

The B82720K2202N040 is a current-compensated ring core double choke manufactured by EPCOS (TDK Electronics). It features a rated AC voltage of 250 V and a maximum rated current of 2 A. The nominal inductance is 1.1 mH with a typical DC resistance of 65 mΩ. The component operates within a temperature range of -40°C to +125°C and utilizes a ferrite core with a rectangular through-hole package.

Feature Summary

• High resonance frequency achieved through specialized winding techniques
• Approximately 1% stray inductance for symmetrical interference suppression
• Design compliance with EN 60938-2 (VDE 0565-2) standards

Applications

• Suppression of common-mode interferences
• Compact electronic ballasts in lamps
• Compact switch-mode power applications

Procurement Notes

Verify the specific suffix N040 against official EPCOS/TDK documentation to confirm pin configuration and packaging details. Ensure the selected variant matches the required 250 V AC rating and 2 A current capacity for the target circuit. Cross-reference safety approvals such as ENEC or UR if regulatory compliance is mandatory for the end application.

Selection Notes

Select this component when designing circuits requiring high-frequency common-mode noise reduction with low stray inductance. The wide operating temperature range supports demanding environments. Verify that the 1.1 mH inductance value aligns with the specific filtering requirements of the power line or signal path.

Part Context

This part belongs to the B82720 series of power line chokes, which are current-compensated ring core double chokes. The series offers various inductance values and current ratings, all sharing similar construction methods designed for effective electromagnetic interference suppression in compact form factors.

Replacement Considerations

Check datasheets for other B82720 variants with matching 1.1 mH inductance and 2 A rating. Confirm mechanical footprint compatibility before substitution.