CST306-2A

Overview

The CST306-2A is a current sense transformer manufactured by Triad Magnetics, designed for board mounting applications. It features an encapsulated toroidal core with a primary inductance of 14.0 mH and a turns ratio of 100:1. The device supports a maximum current rating of 25 A and operates within a frequency range of 20 kHz to 200 kHz. Physical dimensions include a height of 23.24 mm, width of 9.78 mm, and length of 17.53 mm, with a radial termination style suitable for through-hole installation.

Feature Summary

• Encapsulated toroidal construction provides environmental protection and mechanical stability.
• High turns ratio enables precise current sensing for control circuitry.
• Through-hole radial termination ensures secure PCB integration.

Applications

• Current detection in switching power supply circuits
• Overcurrent protection monitoring systems
• Feedback loop sensing in power converters

Procurement Notes

Verify the specific manufacturer part number against official Triad Magnetics documentation to ensure component authenticity. Confirm that the encapsulated toroidal design meets the thermal and electrical requirements of the target application. Cross-reference datasheet parameters such as inductance and current ratings with system specifications before finalizing procurement orders.

Selection Notes

Select this component when a high-turns-ratio current sensor is required for low-to-medium current levels up to 25 A. The 100:1 ratio suits applications needing significant signal isolation between primary and secondary sides. Ensure the operating frequency falls within the 20 kHz to 200 kHz range to maintain performance integrity.

Part Context

This model belongs to the CST306 series of current sense transformers from Triad Magnetics. The series offers various inductance and turns ratio options tailored for different power management needs. The CST306-2A specifically targets applications requiring higher sensitivity due to its 100:1 ratio compared to other variants in the lineup.

Replacement Considerations

The CST306-1A serves as a related variant within the same product family, offering different inductance and turns ratio characteristics. Verify functional compatibility regarding current handling and frequency response before substituting.