CST25-0050

Overview

The Triad Magnetics CST25-0050 is a board-mount current sense transformer designed for high-frequency applications. It features a turns ratio of 1:50 and operates within a frequency range of 50 kHz to 500 kHz. The component has a primary current rating of 25 A, an inductance of 4.7 mH, and a secondary coil resistance of 500 mOhms. It utilizes through-hole solder pin termination and measures 17 mm in length, 15 mm in width, and 11.8 mm in height.

Feature Summary

• Provides electrical isolation for accurate current sensing in high-frequency circuits
• Supports primary currents up to 25 A with a precise 1:50 transformation ratio
• Optimized for operation between 50 kHz and 500 kHz for efficient signal integrity

Applications

• Switch-mode power supply (SMPS) current monitoring
• Inverter and motor drive control systems
• High-frequency AC/DC converter feedback loops

Procurement Notes

Verify the specific package dimensions and lead time requirements against your manufacturing timeline before ordering. Confirm that the 25 A primary current rating aligns with your peak load conditions. Ensure the PCB layout accommodates the through-hole solder pin spacing and the physical footprint of 17 mm by 15 mm. Check for any specific handling instructions regarding the maximum operating temperature of +100 C during assembly processes.

Selection Notes

Select this component when a robust, isolated current sensing solution is required for frequencies above 50 kHz. The 1:50 ratio suits applications needing significant signal attenuation from high-current lines. Consider the 4.7 mH inductance for stability in switching regulator designs. Evaluate the thermal performance at +100 C if operating in enclosed environments. Compare against other series if lower current ratings or different form factors are needed.

Part Context

This part belongs to the CST25 series of current sense transformers from Triad Magnetics. These components are engineered for PCB mounting and provide reliable isolation between primary power stages and secondary control circuitry. The series supports various turns ratios and current ratings to accommodate diverse industrial and commercial power electronics designs.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.