PCS040-EF1304KS

Current Sense Transformers Overview

The PCS040-EF1304KS is a surface-mount current sense transformer manufactured by Bourns Inc. It features a primary DC resistance of 1 milliohm and a secondary DC resistance of 1 ohm. The component has an inductance of 4.16 mH and supports a maximum primary current of 40 A. It operates with a turns ratio of 1:70 and functions at frequencies up to 1 MHz. The physical dimensions are 19.91 mm in length, 16.51 mm in width, and 10.5 mm in height. The device is RoHS compliant and rated for a maximum operating temperature of +125°C.

Current Sense Transformers Feature Summary

• Surface mount construction for automated PCB assembly
• High current handling capability up to 40 amperes
• Optimized magnetic design for high-frequency operation

Current Sense Transformers Applications

• Current sensing in power supply circuits
• Overcurrent protection systems
• Power factor correction applications

Current Sense Transformers Procurement Notes

Verify the specific suffix KS against the official Bourns datasheet to confirm package type and compliance status. Ensure the 40A rating aligns with thermal management requirements. Confirm that the 1:70 turns ratio matches the control IC input specifications. Check for any regional distribution restrictions or lead time variations before finalizing procurement plans.

Current Sense Transformers Selection Notes

Select this component when a robust, high-current solution is required for isolated current monitoring. The 4.16 mH inductance provides stability for precise signal transformation. Consider the 19.91 mm footprint for board space constraints. Verify compatibility with the target switching frequency of 1 MHz to ensure accurate performance without saturation.

Current Sense Transformers Part Context

This part belongs to the PCS series of current sense transformers from Bourns Inc., designed for demanding power electronics applications. The series offers various inductance and current ratings to suit different circuit topologies. The EF1304KS designation indicates specific winding and core configurations optimized for efficiency and thermal performance in compact designs.

Current Sense Transformers Replacement Considerations

Consult the official Bourns datasheet for direct cross-references. No public substitute part numbers are confirmed in the provided documentation.