HC16F 1400-S01 , HC16F1400-S01

LEM HC16F 1400-S01 HC16F Automotive Current Transducer

1400A Rated Current x ±1400A Measuring Range — High-Performance Open-Loop Sensor for Automotive Motor Control

LEM HC16F 1400-S01 Product Overview

The HC16F 1400-S01 is an open-loop Hall effect current transducer from LEM's HC16F series, designed for the electronic measurement of DC, AC, and pulsed currents with galvanic isolation between the primary and secondary circuits . This SMD version is specifically engineered for high-power and low-voltage automotive applications, featuring a dual ASIC configuration that effectively cancels external magnetic fields and provides excellent cross-talk immunity . The sensor's dual air-gap design significantly reduces core size and weight compared to conventional C-core sensors, with dimensions of only 37.2 x 32.6 mm and a mass of just 29 g .

Rated for 1400 A nominal with a ±1400 A measuring range, it outputs a fully ratiometric voltage of 2.5 V ± 2 V (instantaneous) with ±1.75% accuracy and ±0.5% linearity . Sensitivity is 1.43 mV/A. Response time is 4 µs and bandwidth is 40 kHz . Supply voltage is +5 V (4.85 to 5.15 V) with a maximum supply current of 35 mA . Operating temperature is -40°C to +125°C .

LEM HC16F 1400-S01 Key Specifications

LEM HC16F 1400-S01 Key Advantages

The HC16F 1400-S01 employs open-loop Hall effect technology with a proprietary dual ASIC, delivering ±1.75% accuracy and ±0.5% linearity while maintaining very low thermal offset and sensitivity drift across the entire -40°C to +125°C temperature range . The ±1400 A range provides ample headroom for measuring nominal currents up to 1400 A with transient overcurrent capability, while the 4 µs response time and 40 kHz bandwidth capture fast-changing motor drive and switching waveforms with high fidelity . The PCB-mount SMD design enables direct, automated assembly onto gate driver boards, and the circular aperture accommodates both rectangular and round busbars, providing flexibility in system design . The integrated sleeve provides high-voltage isolation, and the unipolar +5 V supply simplifies power design. The dual ASIC architecture effectively eliminates external magnetic field interference, ensuring robust performance in electrically noisy automotive environments .

LEM HC16F 1400-S01 Typical Applications

Electrical Power Steering (EPS)
Starter generators
Converters
Motor drive applications
DC link current measurement
Phase current measurement in motor drives

Why Choose the LEM HC16F 1400-S01?

The HC16F 1400-S01 combines a 1400 A nominal rating with a ±1400 A measuring range and ±1.75% accuracy in a compact, lightweight SMD package optimized for automotive xEV and motor control applications . Manufactured by LEM, it delivers stable, accurate, and safe current measurement for demanding automotive systems. The open-loop Hall effect design with dual ASIC offers excellent linearity, very low thermal offset drift, high immunity to external interference, and galvanic separation between primary and secondary circuits . The S01 variant's SMD packaging simplifies automated assembly and reduces manufacturing costs, while the -40°C to +125°C operating range ensures reliable performance in harsh automotive environments. The sensor's dual air-gap design provides improved vibration characteristics and reduced material usage compared to traditional sensors, contributing to both performance and sustainability .