B78417A2285A003

Current Sense Transformers Overview

The B78417A2285A003 is a surface-mount current sense transformer from the EPCOS B78417A series, designed for power electronics applications. It utilizes an EP7 ferrite core and features a 1:50 turns ratio. The component measures 10.60mm x 12.20mm with a maximum seated height of 11.00mm and employs gull-wing termination. It operates within a frequency range of 50 kHz to 500 kHz and withstands a high voltage test of 2400 V AC at 50 Hz for one second between windings.

Current Sense Transformers Feature Summary

• Compact surface-mount design utilizing EP7 ferrite core technology
• High isolation capability verified by 2400 V AC type testing
• Optimized for signal transmission in the 50 kHz to 500 kHz frequency band

Current Sense Transformers Applications

• Power electronics circuits requiring current sensing
• Switching power supplies operating in the specified frequency range
• Industrial equipment requiring isolated current monitoring

Current Sense Transformers Procurement Notes

Verify the complete part number including suffixes against official TDK Electronics documentation to ensure correct specifications. Confirm that the EP7 core variant matches the application requirements. Cross-reference datasheet parameters such as inductance and frequency response before integration. Ensure sourcing channels provide authentic components to avoid counterfeit risks.

Current Sense Transformers Selection Notes

Select this component when a compact SMT current transformer with a 1:50 ratio is required. The EP7 core offers specific magnetic properties suitable for the stated frequency range. Consider the physical dimensions and gull-wing termination style for PCB layout compatibility. Validate the high-voltage isolation rating against system safety standards.

Current Sense Transformers Part Context

This component belongs to the B78417A series introduced by EPCOS (now TDK Electronics) for power electronics. The series is characterized by the use of EP7 ferrite cores, providing a balance of size and performance for surface-mount applications. These transformers are engineered to support reliable operation in demanding electronic environments.

Current Sense Transformers Replacement Considerations

Consult official TDK Electronics substitution guides for verified alternatives. Ensure any replacement maintains the 1:50 ratio, EP7 core material, and compatible footprint dimensions.