ECST1V0805-1030-R

Overview

The ECST1V0805-1030-R is a surface-mount current sense transformer from Eaton Electronics, designed for board-level integration. It features a 30:1 turns ratio and supports primary currents up to 10 A. The component operates within a frequency range of 50 kHz to 1 MHz. Key electrical specifications include a maximum inductance of 180 µH, a primary resistance of 700 mOhms, and a secondary resistance of 870 mOhms. It is qualified under the AEC-Q200 standard for automotive applications. The device utilizes an SMD/SMT package with physical dimensions of 8.38 mm in length, 8 mm in width, and 5.5 mm in height.

Feature Summary

• Provides galvanic isolation between high-voltage primary circuits and low-voltage sensing electronics.
• Optimized for high-frequency operation suitable for switching power supply topologies.
• Automotive-grade qualification ensures reliability in demanding thermal environments.

Applications

• Current monitoring in automotive DC-DC converters
• Isolated feedback loops in flyback or forward converter designs
• Overcurrent protection circuits in industrial power supplies

Procurement Notes

Verify that the specific ordering suffix matches the required reel or cut-tape packaging configuration. Confirm that the manufacturer's datasheet aligns with the project's voltage isolation requirements. Ensure that the soldering profile respects the maximum temperature limits to prevent damage to the internal magnetic core structure.

Selection Notes

Select this component when a compact, isolated current measurement solution is required for frequencies above 50 kHz. The 30:1 ratio suits applications where the sensing resistor value must be kept low to minimize power loss. Verify that the 10 A primary rating covers the peak current demands of the target circuit without saturation.

Part Context

This part belongs to the ECSTA series of current transformers, which are engineered for space-constrained PCB layouts. The 0805 footprint allows for automated assembly in high-volume manufacturing. It serves as a critical interface for accurate current feedback in modern power management systems requiring robust isolation barriers.

Replacement Considerations

Direct substitutes may include other Eaton models within the ECST series that share the same 0805 footprint and 30:1 ratio. Cross-reference the primary inductance and resistance values to ensure compatibility with existing control loop compensation networks.

FAQ

What is the maximum operating temperature for this transformer?

The maximum operating temperature is +125°C.

Does this component meet automotive reliability standards?

Yes, it is qualified according to the AEC-Q200 standard.