LAH 25-NP/SP3

Current Sensors Overview

The LAH 25-NP/SP3 is a board mount current sensor from the LAH series, manufactured by LEM USA Inc. It functions as a closed-loop bidirectional Hall effect module designed for electronic measurement of DC, AC, and pulsed currents. The device provides galvanic isolation between the primary high-power circuit and the secondary control circuit. Key physical specifications include a length of 33.2 mm and a height of 21.15 mm. The unit supports a nominal primary current of 25 A with a single channel configuration.

Current Sensors Feature Summary

• Closed-loop Hall effect technology ensures high precision and linearity
• Galvanic isolation separates primary power circuits from secondary control signals
• Capable of measuring DC, AC, and pulsed current waveforms
• Bidirectional operation allows detection of current flow in both directions

Current Sensors Applications

• Industrial motor drive systems
• Power supply monitoring and control
• Battery management systems
• Inverter and converter applications

Current Sensors Procurement Notes

Verify the specific suffix SP3 against official LEM documentation to confirm pinout and mounting compatibility. Ensure the procurement source provides valid RoHS compliance certificates and SVHC status reports. Cross-reference the part number with the manufacturer's latest datasheet to avoid confusion with similar variants like the LAH-25-NP or LAH 25-NP/SP8. Confirm that the component is supplied as an original new product.

Current Sensors Selection Notes

Select this model when precise measurement of bidirectional currents up to 25 A is required in space-constrained designs. The board mount form factor simplifies integration into existing PCB layouts. Consider the 21.15 mm height constraint during mechanical design. Verify that the galvanic isolation requirements match the system's safety standards. This sensor is suitable for applications demanding low thermal drift and high dynamic response.

Current Sensors Part Context

The LAH series represents LEM's range of closed-loop current transducers designed for robust industrial performance. These sensors utilize Hall effect principles combined with magnetic feedback loops to achieve accurate signal reproduction. The LAH 25-NP/SP3 variant specifically addresses applications requiring compact board mounting solutions with reliable isolation characteristics for modern power electronics.

Current Sensors Replacement Considerations

Direct substitutes may include other LAH series variants such as LAH 25-NP/SP8, provided pin configurations and electrical parameters align. Verify mechanical dimensions and isolation voltage ratings before substitution. Consult LEM technical support for cross-referencing equivalent models with updated packaging or compliance statuses.