ECSTA1V0703-1150-R

Overview

The ECSTA1V0703-1150-R is a board-mount current sense transformer from Eaton Electronics, designed for surface mount technology (SMT). It features a turns ratio of 1:150 and a maximum primary current rating of 9 A. The component exhibits a primary inductance of 2.99 mH, with a primary resistance of 1.5 mOhms and a secondary resistance of 22.3 Ohms. It operates within a frequency range of 50 kHz to 1 MHz. The device is qualified under the AEC-Q200 standard, ensuring reliability for automotive applications.

Feature Summary

• Surface mount construction for automated assembly integration
• AEC-Q200 qualification for automotive electronic environments
• High-frequency operation capability up to 1 MHz
• Defined current sensing ratio for precise signal isolation

Applications

• Automotive power management systems
• Current monitoring in DC-DC converters
• Battery management system (BMS) circuits
• Electric vehicle (EV) charging infrastructure

Procurement Notes

Verify the specific suffix 'R' indicates reel packaging when ordering. Confirm that the 1:150 ratio matches the target circuit requirements. Ensure the 9 A primary current limit is not exceeded during peak load conditions. Check compatibility with SMT reflow profiles specified in the official datasheet. Validate AEC-Q200 compliance if the application mandates automotive-grade standards.

Selection Notes

Select this component when a high isolation ratio and wide bandwidth are required for current sensing. The 1:150 ratio provides significant signal attenuation suitable for low-voltage sensing interfaces. Consider the 2.99 mH primary inductance for impact on circuit impedance. The SMD package facilitates compact PCB layout designs. Verify thermal performance at the intended operating temperature range.

Part Context

This part belongs to the ECSTA series of current transformers by Eaton Electronics. These components are engineered for isolated current measurement in power electronics. The V0703 designation typically refers to the physical footprint and mounting style. The series supports various ratios to accommodate different current levels and sensing needs.

Replacement Considerations

Direct substitutes must match the 1:150 ratio, 9 A rating, and SMD form factor. Verify equivalent inductance and resistance values to maintain circuit stability. Ensure the replacement also meets AEC-Q200 standards if used in automotive contexts. Cross-reference pinout and mechanical dimensions for PCB compatibility.