ECSTA1V1308-1100-R

Overview

The ECSTA1V1308-1100-R is a surface-mount current sense transformer from Eaton Electronics, designed for high-frequency applications. It features a turns ratio of 100:1 and supports primary currents up to 15 A. 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 3.9 mOhm, and a secondary resistance of 2 Ohm. It is qualified under the AEC-Q200 standard and functions reliably across an operating temperature range of -40°C to +125°C.

Feature Summary

• Surface-mount construction optimized for automated PCB assembly processes.
• AEC-Q200 qualification ensures reliability for automotive electronic environments.
• High-frequency operation capability supporting switching frequencies up to 1 MHz.

Applications

• Automotive power electronics current monitoring
• DC-DC converter primary side current sensing
• On-board charger (OBC) circuit protection

Procurement Notes

Verify that the specific part number suffix matches the required turns ratio and packaging configuration. Confirm that the supplier provides official documentation confirming AEC-Q200 compliance. Ensure the procurement channel is authorized to guarantee component authenticity and traceability. Check for any recent engineering change notices that might affect mechanical or electrical parameters before finalizing orders.

Selection Notes

Select this component when a 100:1 isolation ratio is required for primary-side current measurement in high-current DC circuits. The 15 A rating suits applications with significant load currents. Consider the 5.6 mH inductance value to ensure adequate signal fidelity at the target switching frequency. Verify that the SMD footprint aligns with the existing PCB layout constraints and thermal management requirements.

Part Context

This component belongs to the ECST1V1308 series of current sense transformers manufactured by Eaton Electronics. The series utilizes a standardized core size designated by the '1308' code, ensuring consistent mechanical dimensions across various turns ratios. This specific model represents a high-ratio variant intended for precise low-current secondary signal generation from high primary currents.

Replacement Considerations

Direct substitutes within the same Eaton series include ECST1V1308-1040-R (40:1 ratio) and ECST1V1308-1060-R (60:1 ratio). Other variants such as ECST1V1308-1125-R offer different ratios but share identical physical footprints. Cross-vendor replacements require careful validation of inductance, resistance, and saturation characteristics to maintain circuit performance.