ECST1V1308-1020-R

Overview

The ECST1V1308-1020-R is a surface-mount current sense transformer from Eaton Electronics, rated for 15 A primary current. It features a 20:1 turns ratio and operates within a frequency range of 50 kHz to 1 MHz. Key electrical parameters include a maximum primary inductance of 220 µH, a primary resistance of 3.9 mΩ, and a secondary resistance of 210 mΩ. The component supports SMD/SMT installation and is qualified under AEC-Q200 standards. It functions reliably across an operating temperature range of -40°C to +125°C.

Feature Summary

• Surface-mount design optimized for automated PCB assembly processes
• AEC-Q200 qualification ensuring automotive-grade reliability and durability
• High-frequency operation capability supporting switching power supply applications

Applications

• Current sensing in automotive electronic control units
• Primary side current monitoring in DC-DC converters
• Overcurrent protection circuits in industrial power supplies

Procurement Notes

Verify the specific suffix 'R' indicates reel packaging configuration when ordering. Confirm that the 15 A rating aligns with peak operational currents rather than continuous RMS values if applicable. Ensure soldering procedures adhere to thermal limits, as manual hand soldering is generally not recommended. Check for RoHS3 compliance status relevant to your region's regulatory requirements before finalizing procurement.

Selection Notes

Select this component when a 20:1 isolation ratio is required for high-current sensing up to 15 A. The wide frequency range suits high-frequency switching applications. Consider the physical dimensions and SMT footprint compatibility during layout. Verify that the low primary resistance minimizes insertion loss in the main power path compared to shunt resistors.

Part Context

This part belongs to the ECST series of current sense transformers designed by Eaton Electronics. The series offers various turns ratios and current ratings tailored for different power management needs. The ECST1V1308-1020-R specifically addresses high-current applications requiring galvanic isolation between the primary power circuit and the secondary sensing circuitry.

Replacement Considerations

Direct substitutes must match the 20:1 ratio, 15 A rating, and SMT package dimensions. Cross-reference with other Eaton ECST variants or competitors offering similar automotive-qualified current sense transformers. Verify pinout compatibility and inductance specifications to ensure circuit performance remains unchanged.