B82721A2402N020

Overview

The B82721A2402N020 is a current-compensated ring core double choke manufactured by EPCOS (TDK Electronics). It functions as a power line choke with a rated AC voltage of 250 V. The component features an inductance of 700 µH and supports a maximum DC current of 4 A. It utilizes a horizontal, through-hole mounting style with four pins. The device operates within a temperature range of -40 °C to +125 °C and complies with EN 60938-2 standards.

Feature Summary

• High resonance frequency achieved through specialized winding techniques
• Approximately 1% stray inductance for symmetrical interference suppression
• Suitable for wave soldering processes
• Complies with EN 60938-2 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 pin configuration and packaging details. Ensure the selected variant matches the required 250 V AC rating and 4 A current capacity for the target application. Cross-reference RoHS compatibility and UL/VDE approval status with the latest datasheet revisions before procurement.

Selection Notes

Select this component when high common-mode noise suppression is required in power line applications. The low stray inductance makes it suitable for circuits demanding symmetrical interference handling. Verify that the 4 A current rating and 700 µH inductance align with the system's electrical requirements and thermal management capabilities.

Part Context

This part belongs to the B82721 series of current-compensated ring core double chokes from EPCOS. The series offers various inductance values and current ratings, designed for power line filtering. The B82721A2402N020 specifically targets applications requiring robust common-mode noise reduction in compact through-hole designs.

Replacement Considerations

Consult official EPCOS/TDK substitution guides for verified alternatives. Ensure any replacement maintains the 250 V AC rating, 4 A current capacity, and 700 µH inductance. Verify mechanical compatibility and compliance with relevant safety standards.