LA 100-P/SP50

Current Sensors Overview

The LA 100-P/SP50 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 high-power circuit and the secondary control circuit. The device features a nominal primary current (IPN) of 100 A and a measuring range of ±150 A. It utilizes an analog output signal and requires a supply voltage of ±12 V to ±15 V. The unit is engineered for PCB mounting with a specific aperture size of 12.7 x 7 mm for the primary conductor.

Current Sensors Feature Summary

• Closed-loop Hall effect technology ensures high precision and fast dynamic response.
• Galvanic separation isolates the primary power circuit from the secondary control electronics.
• Capable of accurately measuring DC, AC, and pulsed current waveforms.
• Designed for direct PCB mounting with a defined aperture for primary conductor passage.

Current Sensors Applications

• Servo drives
• DC drive static converters
• Switched-mode power supplies (SMPS)
• Uninterruptible power supplies (UPS)

Current Sensors Procurement Notes

Verify the specific suffix SP50 against the manufacturer's latest documentation to confirm pinout configuration and mechanical dimensions. Ensure the required supply voltage matches the ±12 V to ±15 V specification. Confirm that the PCB layout accommodates the 12.7 x 7 mm aperture and thermal requirements for continuous operation at the rated current.

Current Sensors Selection Notes

Select this component when precise measurement of bidirectional currents up to 150 A is required in industrial environments. The closed-loop design offers superior linearity compared to open-loop alternatives. Ensure the application demands galvanic isolation and that the physical footprint fits the target PCB assembly constraints.

Current Sensors Part Context

This model belongs to LEM's LA 100-P series of closed-loop current transducers. The series is characterized by its use of Hall effect technology combined with magnetic feedback for accurate current replication. These sensors are widely utilized in power electronics where reliable monitoring and protection of electrical circuits are critical.

Current Sensors Replacement Considerations

Public confirmed substitute part numbers: LA 100-P/SP4, LA 100-P/SP6, LA 100-P/SP13.