7492540150

Current Sense Transformers Overview

The Würth Elektronik 7492540150 is a surface mount current sense transformer from the WE-CST series. It features a 1:150 turns ratio and supports a primary current rating of 40 A. The component has a primary DC resistance of 0.28 mOhm and a secondary DC resistance of 1.9 Ohm. Inductance is specified at 12.6 mH with a frequency response up to 1 MHz. Physical dimensions are 14.48 mm in length, 10.5 mm in height, and 6.90 mm in width.

Current Sense Transformers Feature Summary

• Provides galvanic isolation between high-voltage primary circuits and low-voltage sensing electronics
• Enables precise current monitoring through accurate signal transformation ratios
• Designed for compact surface mount integration into dense PCB layouts

Current Sense Transformers Applications

• Switch-mode power supply current limiting and feedback loops
• Motor drive systems requiring phase current detection
• Inverter circuits for overcurrent protection mechanisms

Current Sense Transformers Procurement Notes

Verify the complete manufacturer part number against official Wurth Elektronik documentation to ensure correct specification matching. Confirm that the required current rating and isolation voltage meet the specific design constraints. Check for any recent product change notices or lifecycle status updates directly from the manufacturer before finalizing procurement plans.

Current Sense Transformers Selection Notes

Select this component when a high-current capacity of 40 A is required alongside precise isolation. The 1:150 ratio suits applications needing significant signal attenuation for sensitive ADC inputs. Ensure the PCB footprint accommodates the 14.48 mm length and 10.5 mm height constraints within the assembly area.

Current Sense Transformers Part Context

This device belongs to the WE-CST series of current sense transformers manufactured by Wurth Elektronik. These components are engineered for robust performance in power electronics, offering reliable magnetic coupling for current measurement tasks in industrial and consumer power conversion equipment.

Current Sense Transformers Replacement Considerations

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