ECSTA1V0703-1070-R

Overview

The ECSTA1V0703-1070-R is a surface-mount current sense transformer manufactured by Eaton Electronics. It features a primary-sensed current rating of 9A and a turns ratio of 70:1. The component operates within a frequency range of 50kHz to 1MHz. Key electrical parameters include a primary inductance of 0.652µH, a primary resistance of 1.5mΩ, and a secondary resistance of 5.04Ω. The device is designed for board mounting and holds AEC-Q certification.

Feature Summary

• Surface-mount packaging for automated PCB assembly
• High isolation voltage capability for safety-critical applications
• Automotive-grade qualification ensuring reliability under harsh conditions

Applications

• Current sensing in automotive power electronics
• Motor drive control circuits
• Battery management systems
• On-board charger monitoring

Procurement Notes

Verify the specific suffix and manufacturer documentation to confirm the exact electrical characteristics, particularly the turns ratio and resistance values, as variations exist within the series. Ensure the procurement source provides valid AEC-Q certification records. Cross-reference the datasheet revision date to guarantee compatibility with current design requirements and regulatory standards.

Selection Notes

Select this component when a high turns ratio is required for precise low-current detection from a high-primary current path. The SMT form factor suits space-constrained designs. Consider the operating frequency range and saturation characteristics relative to the target application's switching speed. Verify thermal performance and mounting constraints against the PCB layout specifications.

Part Context

This part belongs to the ECSTA series of automotive-grade current sense transformers. These components are engineered for robust performance in demanding environments. The series offers various ratios and ratings to accommodate different current sensing needs across automotive and industrial applications, providing a standardized solution for galvanic isolation and signal conditioning.

Replacement Considerations

Consult official Eaton documentation for direct substitutes. Alternative parts must match the 70:1 ratio, 9A primary rating, and SMT package dimensions. Verify that any replacement maintains AEC-Q certification and similar electrical parameters to ensure circuit compatibility.