DYS 20A BLHeli ESC BL20A OPTO 2-4S for FPV Racing Drones

  • Sale
  • $11.99 USD
  • Regular price $12.99 USD

Only 7.6g with wires, DYS has newly released a mini ESC SN20A at a very low cost , yet able to run BLHeli firmware and have OneShot/damping light enabled. 

DYS 20A BLHELI ESC for fpv racing drone

Note: This ESC does not include a BEC.


  • Specially designed for multicopters, super fast throttle response.
  • Auto-adaptation throttle, outstanding motor compatibility. 
  • Twisted-pair cable for throttle signal, effectively to reduce the signal cross-talk when transmitting in the copper wire, and make the plane more stable.
  • The refresh rate of throttle signal up to 500HZ, compatible with most flight controllers on the market.  
  • Use the new technique with ultra-low internal resistance MOSFET, with N channel pipe drive, strong current resistance ability.
  • miniaturization design, with high performance C-DC built-on the board,minimize the weight to 2g only.
  • Thicken the PCB copper plate, low heat for small aircraft.


  • Model Number: SN20A
  • BEC: N/A
  • Follow Current: 20A
  • PWM output rate: 18KHz
  • Signal refresh rate: 20-500Hz
  • App program: SimonK bootloader, running BLHeli
  • Instantaneous Current: 22A
  • Battery: 2-4S
  • Size: 23*12*4.5mm
  • Weight: 7.6g(with wire), 2g(without wire)