CST306-2T-B

Overview

The CST306-2T-B is a current sense transformer manufactured by Triad Magnetics, designed for non-invasive current detection in switching power supply applications. It features a solid core construction suitable for through-hole mounting with PC pin termination. The component operates within a frequency range of 20 kHz to 200 kHz and supports a maximum primary current rating of 25 A. Key electrical specifications include an inductance of 14 mH, a secondary DC resistance of 1.55 Ohms maximum, and a turns ratio of 100:1. The device utilizes UL rated materials capable of withstanding temperatures up to 130°C.

Feature Summary

• Non-invasive solid core design for direct conductor sensing without circuit interruption
• Optimized performance for high-frequency switching power supply environments
• Through-hole mounting configuration with PC pin termination for board integration

Applications

• Current monitoring in switching mode power supplies
• Over-current protection circuits in electronic equipment
• Feedback loop sensing in AC/DC converters

Procurement Notes

Verify the specific suffix designation against the manufacturer's official documentation to ensure correct secondary winding configuration and tolerance levels. Confirm that the required operating temperature range aligns with the component's UL rated material specifications. Cross-reference the physical dimensions and pin spacing with the target PCB footprint to guarantee mechanical compatibility during assembly.

Selection Notes

Select this component when a 25 A current rating and 100:1 turns ratio are required for frequencies between 20 kHz and 200 kHz. Consider the 14 mH inductance value for signal integrity in low-noise applications. Ensure the through-hole package style matches the manufacturing process capabilities and that the 1.55 Ohm secondary resistance fits the load requirements of the sensing circuitry.

Part Context

This part belongs to the CST306 series of current sense transformers from Triad Magnetics. The series is engineered specifically for reliable operation in high-frequency power conversion systems. The model distinguishes itself through its specific inductance and resistance values tailored for precise current replication in control loops.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult Triad Magnetics directly for equivalent models or updated series replacements.