Alien 120A 2-12S V4 Factory ESC HV

Original price was: £ 139.00.Current price is: £ 99.00.

Available on backorder

SKU: Alien 120A 2-12S V4 Factory ESC HV Categories: , Tag:



  • Output: Continuous 120A, burst 180A up to 10 seconds
  • Input Voltage: 5-12 cells lithium battery or 15-36 cells NiMH battery
  • BEC: 5V 3A BEC
  • Refresh rate of the throttle signal: 50Hz to 432Hz
  • Control Signal Transmission: Optical/electrical coupled system
  • Max Speed: 210000rpm for 2 Poles BLDC, 70000rpm for 6 poles BLDC, 35000rpm for 12 poles BLDC
  • Size: 88 x 55 x 15 (mm)
  • Weight: 125g.
  • Auto detection for sensored and sensorless motors

Program software: Setup_HighVol_SCT120A_160118

High performance microprocessor, best compatibility with all kinds of motors, highest driving efficiency.
Anti-spark circuit eliminates sparks when the battery pack is connecting with the ESC.
Three types of start mode: Normal / Soft / Very-Soft, compatible with aircraft and helicopter.
Smooth, linear, quick and precise throttle response.
Multiple protection features: Low-voltage cut-off protection / Over-heat protection / Throttle signal loss protection.
The throttle signal is transfered through optical/electrical coupled system to avoid electromagnetic interference.
Perfect governor mode for helicopter.
Wide-opened heat-sink has the best heat dissipation effect.
The firmware of the ESC can be updated through the built-in USB adapter in the
Programmable by transmitter

PLEASE NOTE: Alien Electronics LTD adopts a continuous development program which sometimes necessitates specification changes without notice. Pictures of products and information in the instructions manual are for reference only and can be changed without notice at any time. Colors of goods are subject to stock availability



Brushless controllers basically drive tri-phase motors (Brushless) by sending sequence of signals for make the rotation. The correct phase varies with the motor rotation, which is to be taken into account by the ESC. Usually, back EMF create by the motor rotation is used to detect this signals (in sensorless controller), but variations exist that use magnetic sensors (in sensored controllers) or optical detectors. Basically what the sensor does is tells to the ESC the exactly position of the rotor. The ESC uses this info to start the rotor spinning perfectly without having to ‘guess’, so it can precisely send voltage and energize the exact coils at the exact time when they are needed to be energized. Results is a smoother power, better low-speed driveability and more torque particularly noticeable in lower rpm.

This ESC is recommended for EV systems.

Sensored pin illustration:

Pin 1 = Ground –
Pin 2 = Phase C
Pin 3 = Phase B
Pin 4 = Phase A
Pin 5 = Temperature control (optional)
Pin 6 = Positive + 5V (+/- 10%)

Additional information

Weight 0.350 kg