B82721A2401N020

Overview

The B82721A2401N020 is a current-compensated ring core double choke manufactured by EPCOS (TDK). It features a ferrite core and radial termination style. The component has an inductance of 39 mH with a tolerance of 30%. It supports a maximum DC current of 0.4 A and exhibits a maximum DC resistance of 1.7 Ohms. The device operates within a temperature range of -40 °C to +125 °C. Its physical dimensions are approximately 17.9 mm in length, 17.3 mm in width, and 12.6 mm in height.

Feature Summary

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

Applications

• Suppression of common-mode interferences
• Electronic ballasts in lamps
• Switch-mode power supplies

Procurement Notes

Verify the specific suffix N020 against official EPCOS/TDK documentation to confirm exact dimensional tolerances and packaging details. Ensure compatibility with wave soldering requirements if applicable. Confirm RoHS compliance status via the latest datasheet revision. Cross-reference part numbers with authorized distributors to avoid counterfeit components.

Selection Notes

Select this component for applications requiring high inductance values up to 47 mH within the B82721 series. Consider the 0.4 A rated current limit when designing power lines. The radial leaded package facilitates through-hole mounting. Evaluate thermal performance within the specified -40 °C to +125 °C operating range for environmental suitability.

Part Context

This component belongs to the B82721A/K series of current-compensated ring core double chokes. These power line chokes are rated for 250 V AC and offer inductance values ranging from 0.2 mH to 47 mH. The series is designed for electromagnetic interference suppression in electronic circuits, providing robust performance in various industrial and consumer applications.

Replacement Considerations

Check for B82721A2401N001 or other suffix variations within the same series for potential substitutes. Verify that alternative parts match the 39 mH inductance and 0.4 A current rating. Ensure physical footprint compatibility for PCB replacement.

FAQ

What is the stray inductance value of the B82721A2401N020?

The component has an approximate stray inductance of 1%, which aids in symmetrical interference suppression.

Is the B82721A2401N020 suitable for wave soldering?

Yes, the design complies with standards making it suitable for wave soldering processes.