B82721J2301N020

Overview

The B82721J2301N020 is a current-compensated ring core double choke designed for power line applications. It features a ferrite core with polyurethane potting and a polycarbonate case rated UL 94 V-0. The component provides common mode filtering with an inductance of 47 mH per line at a rated current of 300 mA. It utilizes a sector winding technique to achieve high resonance frequency and low stray inductance, ensuring symmetrical interference suppression. The device supports through-hole mounting with a horizontal orientation.

Feature Summary

• Current-compensated ring core construction for effective common mode noise reduction
• High resonance frequency achieved through specialized sector winding techniques
• Flame-retardant polycarbonate case and polyurethane potting meeting UL 94 V-0 standards
• Low stray inductance design for symmetrical interference suppression

Applications

• Power line filtering in industrial electronics
• Noise suppression in high-power motor control cabinets
• EMI filtering for AC power inputs

Procurement Notes

Verify the specific suffix J2301N020 against official EPCOS/TDK datasheets to confirm the 47 mH inductance and 300 mA rating. Ensure the ordering code matches the required package dimensions and terminal configuration. Cross-reference manufacturer part numbers to avoid confusion with similar series variants that may have different electrical characteristics or mounting styles.

Selection Notes

Select this component when designing circuits requiring robust common mode chokes for power lines with moderate current demands up to 300 mA. The high resonance frequency makes it suitable for suppressing high-frequency electromagnetic interference. Consider the through-hole mounting style and physical dimensions during PCB layout to ensure adequate clearance and mechanical stability.

Part Context

This component belongs to the B82721 series of current-compensated ring core double chokes manufactured by EPCOS (TDK Electronics). These chokes are engineered for power line applications, offering reliable performance in filtering electromagnetic interference. The series is characterized by its compact design, high thermal stability, and compliance with safety standards for electronic components used in various industrial and consumer applications.

Replacement Considerations

Consult official EPCOS/TDK documentation for direct substitutes within the B82721 series. Verify compatibility of inductance, current rating, and physical footprint before replacing.