B82721K2401N020

Overview

The B82721K2401N020 is a current-compensated ring core double choke manufactured by EPCOS (TDK). It features a ferrite core with radial termination and operates within a temperature range of -40°C to +125°C. The component has an inductance of 39 mH with a tolerance of 30%. It supports a maximum DC current of 400 mA and exhibits a maximum DC resistance of 1.7 Ohms. Physical dimensions are 18.2 mm in length, 13.2 mm in width, and 20.3 mm in height.

Feature Summary

• Provides common mode noise suppression through current-compensated ring core design
• Utilizes ferrite core material for effective electromagnetic interference filtering
• Supports high-temperature operation up to 125°C for robust performance

Applications

• Power line chokes for AC mains filtering
• Electromagnetic compatibility (EMC) suppression in electronic circuits
• Noise reduction in power supply inputs

Procurement Notes

Verify the specific suffix N020 against official TDK documentation to confirm terminal configuration and packaging details. Ensure the selected variant matches the required inductance value of 39 mH and current rating of 400 mA for the intended circuit application. Cross-reference datasheet revisions to guarantee compliance with current manufacturing standards.

Selection Notes

Select this component when a 39 mH inductance is required for common mode noise attenuation in power lines. The 400 mA current rating suits low-to-medium power applications. Verify that the radial leaded package fits the PCB layout constraints and that the operating temperature range meets environmental requirements.

Part Context

This part belongs to the B82721 series of power line chokes from EPCOS (TDK). The series offers various inductance values and current ratings using current-compensated ring core technology. These components are designed for general-purpose EMC filtering in AC power applications, providing reliable noise suppression across a wide temperature range.

Replacement Considerations

The B82721K2401N023 is identified as an equivalent substitute part within the same product family. Both parts maintain active status and share similar functional characteristics. Verify pinout compatibility and physical dimensions before substitution.