LA 125-P/SP1

Current Sensors Overview

The LA 125-P/SP1 is a closed-loop Hall effect current sensor designed for PCB mounting. It features a primary nominal current of 125 A and a measurement range up to 200 A. The device outputs a secondary signal of 62 mA and operates on a bipolar supply voltage ranging from 12 V to 15 V. It maintains an accuracy error of 0.8% and utilizes a single pass-through aperture technology.

Current Sensors Feature Summary

• Employs closed-loop Hall effect technology for precise current detection
• Supports bidirectional current measurement capabilities
• Designed for direct printed circuit board (PCB) integration

Current Sensors Applications

• Advanced driver assistance systems (ADAS)
• Automotive power management circuits
• Industrial motor control applications

Current Sensors Procurement Notes

Verify the specific suffix designation to ensure compatibility with required output signals and aperture dimensions. Confirm that the bipolar supply voltage requirements align with the target system design. Ensure the PCB footprint matches the specified package series for proper mechanical installation and electrical connectivity during assembly processes.

Current Sensors Selection Notes

Select this component when high-precision measurement within the 125 A nominal range is required. Consider the 200 A maximum measurement limit for overload scenarios. Evaluate the 62 mA secondary output against available interface circuitry. Verify that the 12–15 V bipolar supply constraint fits within the existing power distribution architecture of the application.

Current Sensors Part Context

This model belongs to the LA series of current transducers manufactured by LEM USA Inc. The series utilizes Hall effect principles combined with closed-loop compensation to achieve high linearity and bandwidth. These sensors are engineered for robust performance in demanding electrical environments, providing reliable isolation between primary and secondary circuits.

Current Sensors Replacement Considerations

LA 125-P/SP3 offers identical primary characteristics but provides a 125 mA secondary output signal instead of 62 mA. Both models share the same 125 A nominal current and 200 A measurement range specifications while maintaining the same PCB mounting format.