CST25-0200

Overview

The CST25-0200 is a board-mount current sense transformer manufactured by Triad Magnetics. It features a 1:200 turns ratio and operates within a frequency range of 50 kHz to 500 kHz. The device has a primary current rating of 25 A, an inductance of 76 mH, and a secondary coil resistance of 4.5 ohms. Designed for through-hole installation with solder pin termination, it measures 17 mm in length, 15 mm in width, and 11.8 mm in height. The component supports a maximum operating temperature of +100°C and a minimum of -40°C.

Feature Summary

• Provides precise current sensing via a 1:200 turns ratio for accurate signal isolation.
• Operates effectively across a wide frequency band from 50 kHz to 500 kHz.
• Supports high primary current loads up to 25 A with robust thermal performance.

Applications

• Switch-mode power supply (SMPS) current monitoring
• Inverter and motor drive control circuits
• Overcurrent protection systems

Procurement Notes

Verify the specific manufacturer part number CST25-0200 against official Triad Magnetics documentation to ensure authenticity. Confirm that the required electrical parameters, including the 1:200 ratio and 25 A rating, match the design specifications. Check RoHS compliance status and operating temperature ranges (-40°C to +100°C) for environmental suitability. Ensure the through-hole package dimensions fit the PCB layout constraints.

Selection Notes

Select this component when a high-current, wide-frequency current transformer is required for board-mounted applications. The 1:200 ratio suits scenarios needing significant signal attenuation. Verify that the 25 A primary rating exceeds the maximum expected circuit current. Ensure the 50-500 kHz operational range aligns with the switching frequency of the target application. Consider the physical size and through-hole mounting requirements during PCB design.

Part Context

The CST25-0200 belongs to Triad Magnetics' line of current sense transformers designed for power electronics. These components are engineered for reliable performance in demanding environments. The series offers various ratios and ratings to accommodate different current levels and frequency requirements. This specific model focuses on high-current applications with a standardized footprint for easy integration into existing designs.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided data. Consult Triad Magnetics directly for potential cross-references or updated models.

FAQ

What is the turns ratio of the CST25-0200?

The CST25-0200 has a turns ratio of 1:200.

What is the maximum primary current rating?

The maximum primary current rating is 25 A.

What is the operating frequency range?

The operating frequency range is 50 kHz to 500 kHz.