HTFS 200-P , HTFS200-P

HTFS200-P Current Sensor: Precision Measurement for Efficient Power Control

In the fields of power electronics and industrial automation control, accurate current measurement is the foundation for efficient and stable system operation. As a global leader in current and voltage sensing solutions, LEM is committed to providing high-precision, high-reliability measurement technologies.

The HTFS200-P current sensor uses advanced Hall-effect open-loop technology, specifically designed for modern power systems and high-frequency switching power supplies. Its outstanding performance and stability have earned the trust of engineers worldwide. Below, we break down the key features of this industry-leading product, helping you see how it can safeguard your projects.

HTFS200-P Product Overview

The HTFS200-P is part of LEM’s HTFS series of PCB-mount Hall-effect current sensors. Based on a proprietary ASIC (Application-Specific Integrated Circuit), it accurately measures DC, AC, pulsed, and mixed currents and supports bidirectional measurement. It is an ideal choice for current monitoring, overcurrent protection, and system feedback control. Its ultra-compact, flat design saves valuable PCB space, facilitating miniaturization of equipment.

HTFS200-P Key Specifications & Technical Advantages

Key Specifications at a Glance

Rated current (Iₚₙ): 200 A

Measuring range: ±300 A

Accuracy: ±1%

Linearity: ±0.5%

Frequency bandwidth: DC ~ 240 kHz

Response time: 3.5 µs

Supply voltage: 5 V (single supply)

Output type: Ratiometric voltage output

Operating temperature: -40°C to +105°C

Mounting type: PCB mount (through-hole or screw fixing)

Compliance: RoHS, REACH

Four Core Technical Advantages

High Accuracy & Linearity
With ±1% accuracy and ±0.5% linearity, the HTFS200-P delivers stable and reliable measurements even in complex electromagnetic environments. It provides accurate data for critical functions such as overcurrent protection and feedback control.

Fast Dynamic Response
A response time of just 3.5 µs handles fast current transients and PWM control signals with ease. This makes the sensor ideal for demanding applications such as high-frequency switching power supplies, inverters, and motor drives.

Wide Bandwidth & Wide Temperature Range
The DC to 240 kHz bandwidth ensures accurate capture of current components from DC to high-order harmonics. Meanwhile, the -40°C to +105°C operating range guarantees stable performance in both high-temperature industrial environments and low-temperature outdoor settings.

4Ultra-Low Power Consumption & Compact Design
Maximum supply current of only 25 mA minimizes system heating. The compact, flat design and PCB mounting save valuable board space, helping to increase power density.

HTFS200-P Versatile Applications

Thanks to its excellent performance, the HTFS200-P is widely used in:

Variable Frequency Drives (VFDs) – Precise output current measurement for high-performance vector control of motor torque and speed.

Servo Drives – High-bandwidth current feedback to optimize position and speed control accuracy, improving dynamic response.

Uninterruptible Power Supplies (UPS) – Real-time monitoring of battery charge/discharge currents and inverter output to ensure safe, uninterrupted power for critical loads.

Switching Power Supplies – Accurate primary-side current information for the control loop, enhancing stability and reliability.

Photovoltaic Inverters – DC-side MPPT (Maximum Power Point Tracking) control and AC-side grid monitoring, improving solar energy conversion efficiency.

Industrial Automation Equipment – Intelligent current detection for equipment status monitoring and predictive maintenance.

HTFS200-P Detailed Specifications