HO 150-NP-0100 High-Performance Hall-Effect Open-Loop Current Sensor

Precision Measurement for Outstanding Designs

HO 150-NP-0100 Product Overview: High-Performance Multi-Range Current Sensor

The HO 150-NP-0100 is a flagship model in LEM’s HO-NP series. It uses mature open-loop Hall-effect technology, designed for accurate DC, AC, and pulse current measurement. The sensor supports a rated current of up to 150 A, with a measuring range extending to ±375 A, and provides a ratiometric voltage output of 0.8 V. Accuracy reaches ±1.15%, meeting the demanding current monitoring and control requirements of complex electrical systems.

The product comes with a five-year warranty and holds international certifications including CE, UL, and RoHS, ensuring quality assurance.

HO 150-NP-0100 Key Technical Specifications

HO 150-NP-0100 Core Advantages & Highlights

One Sensor, Multiple Ranges – Maximum Flexibility

The HO 150-NP-0100 integrates four primary conductor pins, allowing configuration for three rated current ranges: 37.5 A, 75 A, and 150 A. A single sensor covers multiple measurement ranges, simplifying BOM management and component selection for engineers.

Ultra-Fast Response – Capture Transient Details

A 2.5 µs response time combined with a 350 kHz bandwidth enables the HO 150-NP-0100 to accurately capture fast current transients and complex pulse waveforms. Whether it is high-frequency harmonics at a variable frequency drive output or inrush current during powerup, this sensor delivers real-time, precise feedback.

Galvanic Isolation – Safe & Reliable

Full galvanic isolation between primary and secondary circuits with a minimum creepage and clearance distance of 8 mm + CTI 600, and an insulation test voltage of 4.3 kVrms, guarantees safety. It protects sensitive control circuits from high-voltage power stages.

Wide Temperature Operation – Rugged Performance

The -40°C to +105°C operating range allows the HO 150-NP-0100 to perform reliably even in harsh environments – from cold northern outdoor installations to hot industrial cabinets. Accuracy reaches 1% of rated value at 25°C and remains within 3.4% at 105°C, demonstrating excellent temperature drift control.

Overcurrent Detection – Active System Protection

An integrated overcurrent detection pin, with a factory-set threshold of 2.93× the rated current (approximately 440 A peak), allows the system to respond immediately to overcurrent events. This is critical for inverters, motor drives, and other applications requiring real-time overcurrent protection.

Compact Design – Saves PCB Space

Compact dimensions of 20 mm (W) × 41 mm (L) × 27 mm (H) and an integrated primary conductor pin layout are optimized for through-hole PCB mounting. In space-constrained power modules or compact equipment, the HO 150-NP-0100 helps engineers maximize precious board area.

HO 150-NP-0100 Typical Applications

The high performance and reliability of the HO 150-NP-0100 make it ideal for numerous power electronics applications, including:

Photovoltaic systems – MPPT tracking in solar inverters, DC side combiner box current monitoring

Motor drives & control – AC variable frequency drives, servo drive closed-loop current control

Power supplies – UPS systems, switchmode power supply (SMPS) current monitoring

Electric vehicles – On-board chargers (OBC), battery management system current sensing

Renewable energy – Wind turbine converters, energy storage system (ESS) current management

Industrial automation – Robotic drive systems, welding equipment current monitoring

Smart grids – Small intelligent meters, power quality monitoring devices

Why Choose the HO 150-NP-0100?

✅ Global Brand Quality Assurance

LEM is a world leader in current and voltage measurement with over 50 years of expertise. The HO 150-NP-0100 uses advanced ASIC technology that integrates all core elements of an open-loop Hall sensor onto a single chip, delivering both high performance and consistency. Factory-calibrated, it is ready to use out of the box – no extra tuning required.

✅ High Cost-Performance – Lowers System BOM Cost

Multi-range capability and excellent value for money mean one sensor can satisfy multiple current measurement needs, simplifying inventory management and helping you reduce total system cost while maintaining performance.

✅ Meets Global Standards – Hassle-Free Export

Compliant with RoHS and REACH directives, certified to UL 508 and IEC 61010-1 safety standards, and classified as ECCN EAR99 with minimal export restrictions, the sensor can be sourced and used worldwide without complications.

✅ Reliable Supply – Short Lead Times

LEM offers standard tray packaging (100 pieces per tray). Stock is available through major authorized distributors worldwide. Through channels such as DigiKey, element14, and Newark, typical lead times range from 2 to 6 weeks.