HO 8-NSM/SP33-1000

Current Sensors Overview

The HO 8-NSM/SP33-1000 is an open-loop Hall effect current transducer from LEM USA Inc. designed for precise electronic measurement of DC, AC, and pulsed currents. It features a nominal primary current (IPN) of 8A with a single-turn primary configuration. The device operates with a supply voltage of +3.3V and provides an analog voltage output ranging from 3.14V to 3.46V under standard conditions (TA = 25°C, RL = 10 kΩ). This bidirectional module supports applications requiring accurate current sensing in compact environments.

Current Sensors Feature Summary

• Open-loop Hall effect technology for non-invasive current measurement
• Bidirectional sensing capability for AC, DC, and pulsed currents
• Integrated SP33 interface compatible with standard microcontroller systems

Current Sensors Applications

• Precision electronic measurement of direct and alternating currents
• Pulsed current monitoring in power electronics
• Industrial control systems requiring isolated current feedback

Current Sensors Procurement Notes

Verify the specific suffix designation to ensure compatibility with required supply voltages and interface protocols. Confirm that the open-loop architecture meets the accuracy requirements for the target application. Check for any recent product change notices regarding ASIC upgrades or pinout modifications that may affect integration into existing designs.

Current Sensors Selection Notes

Select this component when a low-voltage 3.3V operation is required alongside high precision for small signal currents. The 8A rating suits applications where primary conductors can be routed directly through the sensor aperture. Consider the open-loop design trade-offs regarding linearity and temperature drift compared to closed-loop alternatives.

Current Sensors Part Context

This model belongs to the HO Series, which focuses on intelligent and interactive current sensing solutions. The series emphasizes compact form factors and digital interface compatibility, catering to modern embedded systems that demand reliable isolation and fast response times for current monitoring tasks.

Current Sensors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Review the HO 8-NP/SP33-1000 variant if closed-loop performance is needed, though electrical characteristics differ significantly.