ECST1V0504-1070-R

Overview

The ECST1V0504-1070-R is a board-mount current sense transformer from Eaton Electronics, designed for surface mount technology (SMT) applications. It features a turns ratio of 70:1 and supports primary currents up to 7 A. The component operates within a frequency range of 50 kHz to 1 MHz. Key electrical specifications include a maximum primary inductance of 400 µH, a primary resistance of 3 mΩ, and a secondary resistance of 4.6 Ω. The device is rated for 500 Vac isolation voltage 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
• High-frequency operation capability suitable for switching power supply topologies
• Robust thermal performance supporting extended industrial temperature ranges

Applications

• Current sensing in high-frequency DC-DC converters
• Overcurrent protection circuits in power management systems
• Feedback loop monitoring in switch-mode power supplies

Procurement Notes

Verify the specific suffix designation against the manufacturer's latest datasheet to ensure compatibility with required insulation ratings and tolerance levels. Confirm that the selected variant meets the precise inductance and resistance parameters necessary for the target circuit design before finalizing procurement orders.

Selection Notes

Select this component when a 70:1 turns ratio is required for accurate current replication in high-frequency environments. Ensure the PCB layout accommodates the SMT footprint dimensions and that the thermal environment remains within the specified -40°C to +125°C operational limits for reliable long-term performance.

Part Context

This part belongs to the ECST series of current sense transformers manufactured by Eaton Electronics. The series provides various turns ratios tailored for different current sensing needs while maintaining consistent physical dimensions and mounting styles to facilitate standardized design integration across multiple power electronics platforms.

Replacement Considerations

Cross-reference with other ECST series variants such as ECST1V0504-1060-R or ECST1V0504-1080-R if different turns ratios are acceptable. Verify pinout compatibility and electrical parameter overlaps before substituting to maintain circuit integrity.