B82724J2432U040

Overview

The B82724J2432U040 is a current-compensated ring core double choke manufactured by EPCOS, now part of TDK Electronics. This component belongs to the B82724J series and is designed for power line filtering applications. It features an inductance of 6.8 mH at 10 kHz and supports a rated continuous current of 4.3 A. The device operates with a rated voltage of 250 V AC (50/60 Hz) and withstands a test voltage of 1500 V AC for 2 seconds between lines. It utilizes a vertical, 4-pin through-hole package.

Feature Summary

• Current-compensated design effectively filters common-mode noise while allowing differential signals to pass with minimal impedance.
• Ring core construction provides high magnetic efficiency and stable performance under varying load conditions.
• Robust insulation system ensures safety compliance with high dielectric strength between input and output lines.

Applications

• Power supply input filtering for industrial equipment
• EMI suppression in AC mains circuits
• Common-mode noise reduction in data communication interfaces

Procurement Notes

Verify the complete part number including the suffix U040 to ensure correct packaging and pin configuration. Confirm that the operating temperature range aligns with your system requirements, as rated temperatures may vary within the series. Check for RoHS compliance status if required by your manufacturing standards. Ensure the physical dimensions fit your PCB layout constraints before ordering.

Selection Notes

Select this component when common-mode noise suppression is critical in 250 V AC environments. The 4.3 A current rating suits moderate-power applications requiring effective EMI filtering without significant signal loss. Consider the vertical mounting style for space-constrained boards where horizontal chokes are unsuitable. Compare inductance values against other series members if higher or lower filtering characteristics are needed.

Part Context

This component is part of the B82724J series of current-compensated ring core double chokes from EPCOS/TDK. These chokes are engineered for power line applications, offering reliable common-mode noise attenuation. The series is widely used in consumer electronics, industrial controls, and IT equipment to meet electromagnetic compatibility standards. EPCOS, acquired by TDK, maintains a strong reputation for passive components in automotive and industrial sectors.

Replacement Considerations

Direct substitutes include other B82724J series variants with similar inductance and current ratings, such as B82724J2xxxU040. Verify pin compatibility and mechanical dimensions before substitution. Cross-reference with TDK's official replacement guides for equivalent performance in specific frequency ranges.