749252040

Current Sense Transformers Overview

The Würth Elektronik 749252040 is a WE-CST series current sense transformer designed for surface mount applications. It features a 1:40 turns ratio and a primary DC resistance of 3 milliohms with a secondary resistance of 1.6 ohms. The component has an inductance of 132 microhenries, supports a rated current of 7 amperes, and operates up to 1 MHz. It provides an isolation voltage of 80 volts and a volt-second rating of 18 Vµs.

Current Sense Transformers Feature Summary

• High-accuracy current sensing capability for industrial and power applications
• Robust insulation properties ensuring electrical safety
• Surface mount package design for automated assembly

Current Sense Transformers Applications

• Industrial power supply circuits
• Motor control systems
• Battery management systems

Current Sense Transformers Procurement Notes

Verify the specific manufacturer part number against official Wurth Elektronik documentation to ensure authenticity. Confirm that the received components match the specified electrical parameters and physical dimensions. Check for any relevant compliance certificates such as RoHS status directly from the supplier or manufacturer sources before finalizing procurement orders.

Current Sense Transformers Selection Notes

Select this component when a high-accuracy current sense transformer is required for surface mount designs. Ensure the application demands a 1:40 turns ratio and can accommodate the specified 7A rated current. Verify that the operating frequency range aligns with the 1 MHz specification and that the physical footprint fits the PCB layout constraints.

Current Sense Transformers Part Context

This component belongs to the WE-CST series of current sense transformers manufactured by Würth Elektronik. These devices are engineered for precise current monitoring in demanding electronic environments. The series offers various configurations tailored for different current levels and isolation requirements within power electronics architectures.

Current Sense Transformers Replacement Considerations

Consult official Wurth Elektronik documentation for confirmed substitute part numbers within the WE-CST series. Ensure any replacement maintains identical electrical characteristics, including the 1:40 ratio and 132 µH inductance, to guarantee circuit compatibility.