B82730U3401A020

Overview

The B82730U3401A020 is a current-compensated U-core double choke designed for power line applications. It features a rated voltage of 300 V AC and supports a maximum DC current of 400 mA. The inductance value is 15 mH with a tolerance of 30%. The component utilizes a vertical through-hole mounting style with four pins. Its physical dimensions are 16.50 mm in length, 11.00 mm in width, and a maximum height of 16.50 mm. The operating temperature range spans from -40°C to +125°C.

Feature Summary

• Current-compensated design effectively cancels magnetic fields generated by differential mode currents, ensuring high common-mode impedance without saturation.

Applications

• Power supply input filtering
• EMI suppression in electronic equipment
• Signal integrity protection in data lines

Procurement Notes

Verify the specific suffix code against the manufacturer's official documentation to confirm exact electrical tolerances and core material specifications. Ensure that the thermal rating aligns with the intended operational environment, particularly regarding the maximum junction temperature limits defined in the datasheet.

Selection Notes

Select this component when a compact U-core solution is required for dual-line filtering. The choice depends on meeting the 15 mH inductance requirement at 400 mA while adhering to strict spatial constraints defined by the 16.50 mm height limit.

Part Context

This part belongs to the B82730U series of power line chokes manufactured by EPCOS (TDK). The series is characterized by its U-core construction, which offers a balance between high inductance density and cost-effectiveness for general-purpose electromagnetic interference suppression tasks.

Replacement Considerations

Consult the official TDK replacement matrix for direct equivalents. Verify pin compatibility and inductance curves before substituting with other series components to ensure circuit stability.