7492540040

Current Sense Transformers Overview

The Würth Elektronik 7492540040 is a board-mount current sense transformer from the WE-CST series. It features a 1:40 turns ratio and supports up to 40A primary current. The component utilizes an EE13/7/4 core with surface mount termination. Key electrical parameters include 0.896mH inductance and 98Ohm impedance at 25MHz. Physical dimensions are approximately 13.2mm height, 18.8mm width, and 32.5mm length.

Current Sense Transformers Feature Summary

• Integrated magnetic core design for compact board mounting
• High current handling capability for power monitoring applications
• Surface mount technology compatible termination style

Current Sense Transformers Applications

• Current sensing in AC-DC converters
• Power supply feedback loops
• Industrial motor control systems

Current Sense Transformers Procurement Notes

Verify the specific suffix against official Wurth Elektronik documentation to ensure correct turns ratio and core material configuration. Confirm RoHS compliance status through the manufacturer's latest certificate of conformity. Cross-reference the Mouser or DigiKey part numbers with the official datasheet to validate package type and pinout alignment before finalizing procurement orders.

Current Sense Transformers Selection Notes

Select this component when high primary current capacity is required alongside precise isolation. The 1:40 ratio suits applications needing scaled-down secondary signals for microcontroller ADC inputs. Ensure the PCB footprint matches the EE13/7/4 mechanical outline. Evaluate thermal performance under continuous load conditions relative to the specified operating temperature range.

Current Sense Transformers Part Context

This part belongs to the WE-CST series of current sense transformers manufactured by Würth Elektronik. The series focuses on providing reliable galvanic isolation for current measurement in switching power supplies. The 7492540040 variant specifically targets higher current ranges compared to lower-rated siblings in the same product family.

Current Sense Transformers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source data.