B82801A0135A125

Current Sense Transformers Overview

The B82801A0135A125 is a surface-mount current sense transformer manufactured by EPCOS (TDK Electronics). It operates within a frequency range of 50 kHz to 1 MHz and features a turns ratio of 1:125. The component exhibits very low DC resistance, with primary resistance at 2.5 mOhms and secondary resistance at 13 Ohms. It includes an inductance of 1.28 mH and is designed for compact applications requiring invasive current sensing.

Current Sense Transformers Feature Summary

• Very low DC resistance for minimal signal loss
• Compact package design suitable for space-constrained layouts
• RoHS compatible construction

Current Sense Transformers Applications

• Switching power supplies

Current Sense Transformers Procurement Notes

Verify the specific manufacturer source when ordering, as components may be sourced from TDK or its distributors. Confirm that the received parts match the exact model number B82801A0135A125 to ensure correct electrical characteristics. Check for any potential supply chain variations regarding packaging or lot codes before finalizing procurement plans.

Current Sense Transformers Selection Notes

Select this component for designs requiring precise current monitoring in high-frequency environments. The 1:125 ratio provides significant signal amplification for accurate measurement. Ensure the PCB layout accommodates the surface-mount form factor and that the operating frequency remains within the specified 50 kHz to 1 MHz range for optimal performance.

Current Sense Transformers Part Context

This part belongs to the B82801A series of current sense transformers. These devices are engineered for efficient energy conversion systems where reliable current feedback is critical. The series offers various turns ratios to suit different circuit requirements while maintaining a small physical footprint.

Current Sense Transformers Replacement Considerations

No public confirmed substitute part numbers are available.