7492551500

Current Sense Transformers Overview

The Würth Elektronik 7492551500 is a board-mount current sense transformer from the WE-CSTLF series. It features a 1:1500 turns ratio and supports a maximum primary current of 45 A. The device has an inductance of 3.6 H and a magnetic flux capacity of 90,000 Vµs. It operates within a frequency range of 47 Hz to 400 Hz and includes a secondary resistance of 178 ohms. Designed for through-hole mounting, it functions between -40°C and +125°C.

Current Sense Transformers Feature Summary

• Integrated magnetic core design for compact board-level integration
• High isolation capability suitable for safety-critical power monitoring
• Through-hole termination for robust mechanical stability

Current Sense Transformers Applications

• AC/DC converter input current sensing
• Power supply unit monitoring circuits
• Industrial motor drive protection systems

Current Sense Transformers Procurement Notes

Verify the specific suffix against the manufacturer datasheet to ensure correct packaging and tolerance specifications. Confirm that the through-hole footprint matches the target PCB layout dimensions. Check for RoHS compliance status if required by project regulations. Ensure the operating temperature range aligns with the final assembly environment constraints.

Current Sense Transformers Selection Notes

Select this component when high accuracy is required for low-frequency AC current measurement up to 400 Hz. The 1:1500 ratio provides significant signal attenuation, requiring appropriate downstream amplification. Consider the 45 A peak rating to prevent saturation during transient load conditions. Evaluate the physical size constraints relative to the 178 ohm secondary impedance requirements.

Current Sense Transformers Part Context

This part belongs to the WE-CSTLF family of current sense transformers manufactured by Würth Elektronik. These components are engineered for precise current monitoring in power electronics applications. The series offers various ratios and current ratings to suit different power levels while maintaining high linearity and bandwidth performance.

Current Sense Transformers Replacement Considerations

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