Overview

The Hobbywing XRotor H120A 18S FOC ESC is a lightweight, high-efficiency electronic speed controller engineered for heavy-lift drones, large industrial UAVs, and VTOL drone platforms. With support for up to 18S (78.3V) input and a compact body weighing just 234g, it delivers 40A continuous current and up to 150A peak current in short bursts. The H120A integrates intelligent FOC vector control, CAN communication, dual throttle support, and robust thermal management, making it an ideal choice for mission-critical aerial systems.

Technical Specifications

Key Features

High-Efficiency FOC Vector Control

The H120A utilizes Field-Oriented Control (FOC) technology, enabling:

• 10% improved drive efficiency

• 10C reduction in heat generation

• Lower noise and interference

• Linear throttle response

• Precision motor control

• Support for kinetic energy recovery

Intelligent Protection with Built-In Fault Logging

Integrated smart protection features include:

• Power-on self-diagnosis

• Undervoltage & overvoltage protection

• Overcurrent & throttle signal loss protection

• Infinite restart under fault conditions

• Built-in fault storage for post-flight diagnostics

IP55 Waterproof Protection (IP67 Customizable)

The ESC is housed in an aluminum alloy case with lightweight nano-coating, providing:

• IP55-rated protection from dust and water

• Optional upgrade to IP67 for harsh environments

Advanced Heat Dissipation Design

• Hardware: large-area copper sheets + heat-conducting copper strips

• Software: optimized FOC algorithm reduces temperature and increases efficiency

• Structure: dual-sided heatsinks with scale-shaped fins for faster heat dispersion

Strong Anti-Interference & Signal Isolation

• Fully isolated throttle signals

• Shielded cabling

• Dual control interface: CAN + PWM

• Reliable communication under complex EMI environments

Real-Time Monitoring & Data Logging

With DATALINK support, users can monitor:

• ESC status

• Motor speed

• Current & voltage

• MOSFET and capacitor temperatures

• Real-time throttle signals

Use the black box function for efficient flight data analysis and fault tracking.

Firmware Upgrade via DATALINK

• Supports convenient firmware updates via Hobbywing DATALINK Box

• Optional support for flight controller-based remote OTA upgrade

Details

High Voltage ESC: 18S has lower current, generates less heat.

Intelligent protection, fault storage. Features include power-on self-test, undervoltage, overvoltage, overcurrent protection, throttle signal loss protection, and infinite restart. ESC ensures drone flight safety with real-time intelligent protection and fault analysis capabilities.

Protection class IP55. Lightweight nano-coating and aluminum alloy shell ensure waterproof and dustproof performance. Customizable IP67 protection available.

Excellent heat dissipation performance. Hardware includes large-area copper sheets and strips, aluminum alloy case. Software uses FOC vector control, increasing efficiency by 10% and reducing heat by up to 10C. Structurally, double-sided scale-shaped fins enhance cooling.

Strong anti-interference. Shielded cable, CAN digital throttle + PWM throttle, customizable to isolate throttle signal. Quality ensured in various ways. H120 18S LiPo FOC TECHNOLOGY V1 RTF.

Information and Communication: Fast data transmission and real-time acquisition of key information like ESC status, speed, throttle, current, voltage, MOSFET temperature, and capacitor temperature are achieved using the black box function. Data analysis is clear with DATALINK box.

FOC intelligent drive is accurate and efficient. It offers 10% higher efficiency and a 10C lower temperature compared to ESCs with the same power, ensuring precise control and kinetic energy recovery.

Quick upgrade: Hobbywing software updates via DATALINK box, optional flight control.