ECSTA1V0703-1100-R

Overview

The ECSTA1V0703-1100-R is a surface-mount current sensing transformer manufactured by Eaton Electronics. It features a primary rated current of 9 A and a turns ratio of 1:100. The component exhibits an inductance of 1.33 uH and a secondary winding resistance of 10.68 Ohms. It operates within a frequency range of 50 kHz to 1 MHz. The device is designed for SMD/SMT installation with physical dimensions of 7.2 mm length, 5.2 mm width, and 3 mm height. It holds AEC-Q certification.

Feature Summary

• Surface-mount construction for automated PCB assembly
• High-frequency operation capability up to 1 MHz
• AEC-Q automotive qualification compliance

Applications

• Automotive power electronics current monitoring
• Switch-mode power supply output current sensing
• DC-DC converter feedback loop isolation

Procurement Notes

Verify the specific manufacturer part number against official Eaton documentation to ensure correct variant selection. Confirm that the required operating frequency range aligns with the 50 kHz to 1 MHz specification. Check for any specific packaging requirements or reel specifications if ordering in bulk quantities. Ensure compatibility with standard surface-mount reflow soldering profiles.

Selection Notes

Select this component when a compact, high-frequency current transformer is required for automotive or industrial applications. The 1:100 turns ratio provides appropriate signal scaling for downstream sensing circuits. Consider the 9 A primary current rating to ensure adequate headroom for peak load conditions. Verify that the 1.33 uH inductance meets the minimum requirements for the intended switching frequency.

Part Context

This component belongs to the ECSTA series of current sense transformers from Eaton Electronics. These devices are engineered for high-reliability applications requiring galvanic isolation between primary and secondary circuits. The series offers various current ratings and package sizes to accommodate different board space constraints and electrical requirements.

Replacement Considerations

Consult Eaton's official cross-reference documentation for verified substitute part numbers. Ensure any replacement maintains identical turns ratio, current rating, and frequency response characteristics.