CSE185L

Overview

The Triad Magnetics CSE185L is a low-frequency current sense transformer designed for invasive monitoring applications. It features a primary-to-secondary turns ratio of 1:50 and supports a frequency range from 50Hz to 400Hz. The device has a current rating of 3A with a primary DC resistance of 19.5mOhm and a secondary DC resistance of 23Ohm. It utilizes through-hole mounting with PC pin termination. Physical dimensions are 21.50mm in length, 24.00mm in width, and 18.00mm in maximum seated height.

Feature Summary

• Invasive current sensing capability for monitoring electrical flow
• Optimized performance within the 50Hz to 400Hz frequency spectrum
• Through-hole construction with PC pin termination for board integration

Applications

• Low frequency current monitoring systems
• Power supply feedback loops
• Industrial control circuit protection

Procurement Notes

Verify the specific part number CSE185L against official Triad Magnetics documentation to ensure correct specifications. Confirm that the 1:50 turns ratio and 3A current rating align with your circuit requirements. Check RoHS3 compliance status if environmental regulations apply to your manufacturing process. Ensure the through-hole package style matches your PCB layout constraints.

Selection Notes

Select this component when invasive current measurement is required at frequencies between 50Hz and 400Hz. The 1:50 ratio provides significant signal scaling for downstream processing. Consider the physical size of 21.50mm x 24.00mm for adequate board space allocation. Verify that the primary current does not exceed the 3A rating to maintain accuracy and safety.

Part Context

This component belongs to the CSE18xL series of current sense transformers from Triad Magnetics. These devices are engineered for low-frequency applications where traditional high-frequency sensors may not perform optimally. The series offers various ratios and current ratings to suit different monitoring needs while maintaining consistent physical form factors for design flexibility.

Replacement Considerations

Consult the manufacturer's datasheet for direct substitutes within the CSE18xL series. Verify that any alternative part maintains the same 1:50 turns ratio and 3A current rating. Ensure compatibility with existing PCB footprints and mounting styles before implementation.