ECST1V0504-1150-R

Overview

The ECST1V0504-1150-R is a board-mount current sense transformer from Eaton Electronics, designed for surface mount technology (SMT) applications. It features a primary rated current of 7 A and a turns ratio of 150:1. The component exhibits an inductance of 1800 uH, with a primary DC resistance of 3 mOhms and a secondary DC resistance of 21 Ohms. It operates within a frequency range of 50 kHz to 1 MHz. The device utilizes an EE4.4 SMT package with dimensions of 4.8 mm x 3.65 mm x 3.55 mm.

Feature Summary

• Surface mount construction utilizing an EE4.4 package for compact integration
• High isolation voltage rating of 500 Vac between windings
• Low DC resistance characteristics on both primary and secondary sides
• Wide selection of available turns ratios within the series

Applications

• Current sensing in switching power supplies
• Isolated feedback control loops
• Over-current protection circuits
• Power management systems requiring galvanic isolation

Procurement Notes

Verify the specific part number suffix against official Eaton documentation to ensure correct turns ratio and electrical parameters. Confirm that the required operating temperature range and package dimensions align with the target PCB layout. Check for any recent revisions to the datasheet that may affect mechanical or electrical specifications before finalizing procurement orders.

Selection Notes

Select this component when a 7 A primary current rating and 150:1 turns ratio are required for high-frequency current sensing. Ensure the application environment supports the specified 50 kHz to 1 MHz operating range. Consider the physical footprint of the EE4.4 package during PCB design. Verify that the secondary load impedance is compatible with the 21 Ohm secondary resistance to maintain signal integrity.

Part Context

This model belongs to the ECST1V0504 series of current sense transformers from Eaton Electronics. The series offers various turns ratios and package options tailored for different current levels and isolation requirements. These components are engineered for reliable performance in demanding power electronics environments, providing precise current monitoring capabilities.

Replacement Considerations

Consult Eaton's official cross-reference guides for direct substitutes. Alternative parts must match the 7 A rating, 150:1 ratio, and EE4.4 package dimensions. Verify compatibility with existing circuit designs regarding inductance and resistance values.