CST-1030

Overview

The CST-1030 is a current sense transformer manufactured by Triad Magnetics, designed for non-invasive primary current monitoring. It features a solid core construction suitable for through-hole PCB mounting. The component operates within a frequency range of 50 Hz to 60 Hz and supports a rated primary current of 30 A. Key electrical specifications include a turns ratio of 1000:1, a secondary DC resistance of 46 Ohms, and a power rating of 0.0977 V/A. Physical dimensions are approximately 14.3 mm in width and 30.2 mm in height.

Feature Summary

• Non-invasive solid core design for accurate current sensing
• High isolation capability via transformer coupling
• Optimized for standard 50/60 Hz line frequencies

Applications

• AC power supply current monitoring
• Industrial equipment protection circuits
• Power factor correction systems

Procurement Notes

Verify the specific suffix (e.g., -B) against your bill of materials, as packaging variations exist. Confirm that the 30 A rated current aligns with your peak load requirements. Ensure the 46 Ohm secondary impedance matches your signal conditioning circuit input. Check RoHS compliance status if required by your manufacturing standards.

Selection Notes

Select this component when a high-isolation, non-invasive solution is required for 30 A AC currents. The 1000:1 ratio provides a measurable secondary signal without burdening the primary circuit. Consider the physical footprint constraints, as the through-hole package requires specific PCB clearance. Verify compatibility with downstream rectification or amplification stages given the low voltage output.

Part Context

This part belongs to the CST series of current sense transformers from Triad Magnetics. These components are engineered for reliable performance in power electronics applications requiring galvanic isolation between the high-current primary side and the low-voltage sensing side. The series offers various current ratings to suit different power levels.

Replacement Considerations

No direct public substitute part numbers are confirmed in the provided documentation. When evaluating alternatives, ensure the replacement maintains the 1000:1 turns ratio, 30 A primary current capacity, and compatible physical mounting style.