B82724J2103U040

Overview

The B82724J2103U040 is a current-compensated ring core double choke manufactured by EPCOS (TDK Electronics). It features an inductance of 500 µH per line at 100 kHz, with a maximum rated DC current of 10 A. The component has a typical DC resistance of 9 mΩ and supports AC voltages up to 250 V. Designed for through-hole mounting, it utilizes a vertical package with four PC pins. The unit operates within a temperature range of -40°C to +105°C and includes a test voltage rating of 1500 V AC between lines.

Feature Summary

• Provides effective common mode noise suppression for two-line power circuits
• Utilizes current-compensated ring core design for high saturation performance
• Supports robust insulation testing with high dielectric strength ratings

Applications

• Input filtering for switch-mode power supplies
• EMI suppression in industrial equipment power stages
• Noise reduction in consumer appliance power inputs

Procurement Notes

Verify the specific suffix U040 against official TDK documentation to confirm the exact temperature class and insulation specifications. Ensure the procurement request matches the required through-hole pin configuration and physical dimensions. Cross-reference the manufacturer's latest datasheet to validate compliance with current environmental directives and material declarations before finalizing orders.

Selection Notes

Select this component when designing power stages requiring significant common mode attenuation at low frequencies. The 10 A current rating suits high-power applications where thermal management is critical. Verify that the 500 µH inductance meets the specific EMI filter requirements of the target circuit without causing excessive voltage drop or saturation under peak load conditions.

Part Context

This part belongs to the B82724 series of current-compensated ring core chokes from EPCOS. These components are engineered for power line filtering applications where space efficiency and high current handling are prioritized. The series offers various inductance values and current ratings to accommodate diverse power supply designs across industrial and consumer sectors.

Replacement Considerations

Consult official TDK substitution guides for verified alternatives. Ensure any replacement maintains identical inductance, current rating, and physical footprint to guarantee compatibility with existing PCB layouts and thermal profiles.