LA 150-P/SP1

Current Sensors Overview

The LA 150-P/SP1 is a closed-loop Hall effect current transducer designed for the electronic measurement of DC, AC, and pulsed currents. It provides galvanic isolation between the primary circuit and secondary circuit. The device features a nominal primary current of 150A and a secondary rated output signal of 200mA. It operates within a temperature range of -40°C to +85°C with a supply voltage of ±12V to ±15V DC. The sensor exhibits an accuracy of ±0.5% and linearity of ±1%, supporting bandwidths up to 150kHz.

Current Sensors Feature Summary

• Closed-loop Hall effect technology ensures high precision and fast dynamic response
• Galvanic isolation separates primary and secondary circuits for safety
• Bidirectional measurement capability for both positive and negative current flows

Current Sensors Applications

• Motor drive control systems
• Switch-mode power supplies (SMPS)
• Inverter and converter applications
• Welding equipment current monitoring

Current Sensors Procurement Notes

Verify the specific suffix SP1 against official LEM documentation to confirm pinout configuration and mounting style compatibility. Ensure the operating environment remains within the specified -40°C to +85°C range. Confirm that the supply voltage matches the required ±12V to ±15V DC specification to maintain the stated ±0.5% accuracy. Cross-reference the package type with the mechanical drawing to ensure proper PCB integration.

Current Sensors Selection Notes

Select this model when precise measurement of bidirectional currents up to 150A is required in industrial or automotive settings. The closed-loop design offers superior linearity compared to open-loop alternatives. Consider the 150kHz bandwidth for high-frequency switching applications. Ensure the system can accommodate the ±12V to ±15V dual supply requirement for optimal performance.

Current Sensors Part Context

This component belongs to the LA Series of current transducers from LEM USA Inc. The series utilizes Hall effect principles combined with closed-loop compensation to achieve high accuracy. The LA 150-P/SP1 variant specifically denotes the standard pin configuration and housing style for this 150A capacity unit within the broader product family.

Current Sensors Replacement Considerations

Direct replacements must match the 150A nominal current, ±12V to ±15V supply, and 200mA output specifications. Verify mechanical footprint and pin assignment compatibility before substitution. Alternative models within the LA series may offer different current ratings but require electrical re-evaluation.