ECST1V1308-1100-R

Overview

The ECST1V1308-1100-R is a surface-mount current sense transformer from Eaton Electronics, designed for high-frequency applications. It features a turns ratio of 1:100 and supports a maximum primary current of 15A. The device operates within a frequency range of 50 kHz to 1 MHz. Key electrical specifications include a maximum inductance of 5.6 mH, a primary resistance of 5.6 mOhms, and a secondary resistance of 2 Ohms. It is qualified under AEC-Q200 standards, ensuring reliability for automotive environments.

Feature Summary

• Surface-mount construction optimized for automated PCB assembly processes
• High-frequency operation capability up to 1 MHz for efficient signal sensing
• Automotive-grade qualification ensuring robust performance in demanding thermal conditions

Applications

• Current sensing in automotive power electronics
• Isolated feedback loops in DC-DC converters
• Overcurrent protection circuits in industrial power supplies

Procurement Notes

Verify the specific suffix against official datasheets to confirm exact electrical tolerances and packaging configurations. Ensure compatibility with peak current requirements during transient events. Confirm that the operating temperature range aligns with the final system environment before integration into production designs.

Selection Notes

Select this component when a compact, isolated current measurement solution is required for high-frequency switching applications. Consider the 1:100 turns ratio for appropriate signal scaling relative to the control circuitry input impedance. Evaluate the thermal management capabilities of the PCB layout to maintain performance within the specified operating temperature limits.

Part Context

This part belongs to the ECST series of current sense transformers manufactured by Eaton Electronics. These components are engineered to provide galvanic isolation between high-voltage power stages and low-voltage control logic. The series offers various ratios and current ratings to suit diverse power conversion topologies.

Replacement Considerations

Direct substitutes include ECST1V1308-1125-R (125:1 ratio) and ECST1V1308-1050-R (50:1 ratio). Verify that the alternative turns ratio matches the system's voltage scaling requirements and that the physical footprint remains compatible with the existing PCB design.