LA 25-NP/SP13

Current Sensors Overview

The LA 25-NP is a current sensor manufactured by LEM USA Inc., utilizing closed-loop Hall effect technology for precise measurement. It supports AC and DC current detection with a frequency range of DC to 150kHz. The device offers selectable primary current ratings including 5A, 6A, 8A, 12A, and 25A. Key electrical specifications include ±0.5% accuracy, ±0.2% linearity, and a response time of 1µs. It operates on a dual supply voltage of ±15V with a maximum supply current of 10mA. The output provides a ratio or current signal suitable for bidirectional applications. Designed for through-hole mounting in a module package, it functions within a temperature range of -40°C to 85°C.

Current Sensors Feature Summary

• Closed-loop Hall effect technology ensures high precision and stability
• Bidirectional measurement capability for both AC and DC currents
• Fast response time of 1µs for dynamic signal tracking
• Selectable primary current ratings to fit various circuit requirements

Current Sensors Applications

• Industrial motor drive systems
• Power supply monitoring circuits
• Inverter and converter control loops
• Battery management system testing

Current Sensors Procurement Notes

Verify the specific primary current rating required from the available options (5A, 6A, 8A, 12A, 25A) as the base model designation may not specify the exact value. Confirm that the ±15V supply requirement aligns with the target application's power architecture. Check component status as this series may be marked as not recommended for new designs due to potential minimum order quantity restrictions or lifecycle changes.

Current Sensors Selection Notes

Select this component when high-accuracy measurement of combined AC and DC currents is necessary. The closed-loop design minimizes thermal drift effects compared to open-loop alternatives. Ensure the selected variant matches the specific primary current load. The module form factor requires through-hole PCB integration. Verify that the 150kHz bandwidth meets the highest frequency components present in the measured signal.

Current Sensors Part Context

This part belongs to the LA Series of industrial and railway current sensors produced by LEM USA Inc. The series is designed for robust performance in demanding environments. The LA 25-NP specifically represents a standard module configuration within this lineup, offering versatile current ranges. It is distinct from other series variants by its specific combination of Hall effect sensing and closed-loop compensation architecture.

Current Sensors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. The component is listed as not recommended for new designs, which may limit direct replacement availability. Consult manufacturer documentation for any officially endorsed cross-reference models before substitution.