CST25-0100

Overview

The Triad Magnetics CST25-0100 is a board-mount current sense transformer designed for high-frequency applications. It features a 1:100 turns ratio and operates within a frequency range of 50 kHz to 500 kHz. The component supports a primary current rating of 25 A with a secondary output current of 250 mA. Key electrical specifications include an inductance of 18 mH, a secondary coil resistance of 2 Ohms, and a maximum voltage-time product (Et) of 350 Vµs. It utilizes through-hole solder pin termination and is housed in a compact package measuring 17 mm in length, 15 mm in width, and 11.8 mm in height.

Feature Summary

• Encapsulated PCB mount construction for robust integration
• High-frequency operation capability up to 500 kHz
• Center-tapped secondary winding configuration
• Through-hole solder pin termination style

Applications

• Switch-mode power supply current sensing
• Inverter and motor drive control circuits
• Industrial power monitoring systems

Procurement Notes

Verify the specific manufacturer part number CST25-0100 against official Triad Magnetics documentation to confirm technical compliance. Ensure that the required operating temperature range and physical dimensions align with the target design constraints. Cross-reference the encapsulation type and pin configuration with the approved bill of materials prior to finalizing procurement orders.

Selection Notes

Select this component when a 1:100 transformation ratio is required for currents up to 25 A in high-frequency environments. The 18 mH inductance and 2 Ohm secondary resistance define the signal conditioning requirements. Confirm that the 50 kHz to 500 kHz operational bandwidth matches the switching frequency of the application circuit.

Part Context

This device belongs to the CST25 series of current sense transformers from Triad Magnetics. The series is characterized by encapsulated designs suitable for board mounting. These components are engineered to provide accurate current feedback in power electronics where isolation and high-frequency response are critical for system stability.

Replacement Considerations

Consult official Triad Magnetics substitution guides for verified alternative part numbers within the CST25 series or compatible families. Do not assume interchangeability with other manufacturers' current transformers without verifying electrical parameters and mechanical footprint compatibility.