ECST1V1308-1150-R

Overview

The ECST1V1308-1150-R is a surface-mount current sense transformer from Eaton Electronics, designed for high-frequency applications. It features a turns ratio of 150:1 and supports a maximum primary current of 15 A. The component exhibits an inductance of 12.6 uH with a primary resistance of 3.9 mOhms and a secondary resistance of 6.5 Ohms. Operating within a frequency range of 50 kHz to 1 MHz, it is qualified under the AEC-Q200 automotive standard. The device functions reliably across a temperature range of -40 C to +125 C.

Feature Summary

• Surface-mount construction optimized for automated PCB assembly processes
• Automotive-grade qualification ensuring reliability in demanding environments
• High-frequency operation capability suitable for modern switching power supplies

Applications

• Current sensing in automotive electronic control units
• Isolated feedback loops in DC-DC converters
• Overcurrent protection circuits in industrial power systems

Procurement Notes

Verify the specific suffix and revision level against the manufacturer's latest datasheet to ensure compatibility with design requirements. Confirm that the AEC-Q200 qualification status remains valid for the intended automotive application. Check for any recent production changes or obsolescence notices directly from Eaton Electronics before finalizing procurement plans.

Selection Notes

Select this component when a high isolation voltage and precise current measurement are required in space-constrained designs. The 150:1 ratio suits low-current primary measurements where signal amplification is needed. Ensure the operating frequency aligns with the 50 kHz to 1 MHz range. Consider the thermal performance at +125 C if used in high-temperature environments.

Part Context

This part belongs to the ECST series of current sense transformers from Eaton Electronics. The series offers various turns ratios and current ratings tailored for different power management needs. The ECST1V1308-1150-R specifically targets applications requiring high accuracy and automotive reliability, distinguishing it from general-purpose industrial transformers.

Replacement Considerations

Direct substitutes include other parts within the Eaton ECST1V1308 series with similar electrical characteristics. Verify that alternative components match the 150:1 ratio, 15 A rating, and SMD footprint dimensions to ensure mechanical and functional compatibility without redesigning the PCB layout.