CST-1010-B

Overview

The CST-1010-B is a current sense transformer manufactured by Triad Magnetics, designed for non-invasive current monitoring in AC power systems. It operates at a frequency range of 50/60 Hz and features a solid core construction suitable for through-hole mounting. The component has a current rating of 10 A and a current ratio of 1000:1. Key electrical specifications include a DC resistance (DCR) of 40 Ohms and a power rating of 10 mW. The physical dimensions include a maximum seating height of 24.80 mm.

Feature Summary

• Non-invasive solid core design for safe current sensing
• Optimized for 50/60 Hz AC power applications
• Through-hole PC pin termination for standard PCB assembly

Applications

• Power supply current monitoring
• Industrial control circuit protection
• AC line current measurement

Procurement Notes

Verify the specific suffix 'B' against the manufacturer's latest datasheet to confirm terminal type and mechanical dimensions. Ensure the operating frequency matches the system's 50/60 Hz requirement. Confirm that the 10 A current rating and 40 Ohm DCR are compatible with the downstream signal conditioning circuitry before finalizing the bill of materials.

Selection Notes

Select this component when a non-invasive solution is required for low-frequency AC current sensing. The 1000:1 ratio provides a scaled-down output suitable for standard analog-to-digital conversion or comparator circuits. Consider the 40 Ohm secondary impedance when designing the burden resistor network to ensure accurate signal transfer without excessive loading.

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 management and industrial electronics. The series offers various current ratings and ratios to suit different monitoring needs while maintaining a compact form factor for space-constrained designs.

Replacement Considerations

Direct substitutes must match the 1000:1 ratio, 10 A rating, and 50/60 Hz operation. Verify mechanical compatibility, specifically the through-hole pin configuration and overall envelope size. Cross-reference with other manufacturers' solid-core current transformers offering similar electrical characteristics and mounting styles.