These ESCs have been designed and optimized for multirotor applications. They represent a massive step forward in off-the-shelf ESC design.

They incorporate a SiLabs processor running BLHeli firmware. This firmware is based on the original SimonK firmware upgraded to incorporate several improvements and additional features such as higher update rates which give much quicker linear throttle response when compared to regular non-multi-rotor ESCs.

Specification:

  • Series: Simon
  • Model: 25A
  • Constant current: 25A
  • Burst current: 30A
  • BEC Mode: Linear
  • BEC Output: 5V/2A
  • Battery Cell Count LiPo: 2-3S

Features:

  • Based on SimonK firmware is further optimized to give the perfect performance.
  • Can be flashed with BL Heli firmware
  • Quick linear throttle response
  • Includes low voltage protection, overheat protection, and self-check functions
  • Separate power supply for MCU and BEC, helping eliminate magnetic interference
  • Fully programmable by programming card or directly from your transmitter
  • Customizable throttle range
  • Built-in linear BEC

Programmable Parameters:

  • Brake Type: There are 6 options: OFF, Low. Mid-Low, Middle, Mid-High, High. The default is OFF. (Note: This parameter is invalid in boat ESCs and 4in1 ESCs because there is no brake function in these two types of ESC).
  • Timing Mode: There are 5 options: Low 0°, Mid-Low 8°, Middle 15°, Mid-High 23°, and High 30°. The default is Middle l5°.
  • Start Force: There are I3 options: 0.03, 0.05, 0.06, 0.09, 0.13, 0.19, 0.25, 0.38, 0.50, 0.75, 1.00, 1.25, 1.50. The default is 0.75
  • Curve Mode: There are 4 options: OFF, Low, Middle and High. The default is OFF.
  • Control Frequency: There are 2 options: 8KHz and 22KHz. The default is 8KHz.
  • Low-voltage Protection: There are 4 options: 2.8V/cell, 3.0V/cell, 3.2V/cell and OFF. The default is 3.0V/cell.
  • Cut-Off Mode: There are two options: Soft-Cut and Cut-Off. The default is Soft-Cut. (Note: This parameter is invalid in boat ESCs because there is no Cut-off function in this type of ESC).

Package Included:

1 x EMAX Simon Series 25A ESC

comes as you see it, with original package .

Vintage parts may come with free dust and custom fading, from the darkest corners of the Paradise Valley RC.

We do offer combined shipping discounts on multiple items.

To receive the discounted shipping please allow us to invoice you first. Then you can provide payment.

We ship to mainland USA, Canada, UK, and Japan

Airmail shipping

NO TRACKING or INSURANCE and takes approximately 2 to 4 weeks for delivery, but can take up to 8 weeks. 

Since First Class Mail International delivery times vary greatly PLEASE allow extra time for delivery.

Tracking is available for some items with higher shipping price

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