> For the complete documentation index, see [llms.txt](https://docs.powerdrives.net/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.powerdrives.net/products/f_series.md).

# F Series ESC

Operating on a genuine STM32F3 processor ensures no input commands are missed, even at the highest input update rates. Its bleeding-edge features include PWM-frequency dithering to ensure the smoothest control at high power, whilst maintaining maximum efficiency.

## Features

### Version 1 vs Version 2 Variations

As part of our commitment to delivering top-notch products, we have diligently worked on improving the F\_Series ESCs. We're excited to announce the release of our latest V2 hardware, which features some notable enhancements. These improvements include a built-in bootloader for configuration, passthrough firmware updating from a supported flight controller, Bi-Directional DShot (supported units), and UART pin overvoltage protection (supported units). 

We have designed the V2 F\_Series ESCs to be a drop-in replacement for the existing units, ensuring a seamless transition for our customers. There is no requirement to firmware update V2 units once delivered to introduce the following features. 

{% hint style="success" %}
An easy check for the firmware version currently running on the ESC is the LED behaviour. V2 firmware has a rapid blink (2Hz) with only USB/UART power. Any other behaviour is from older firmware revisions.
{% endhint %}

#### Version 2 Improvements

The following improvements have been made to the version 1 variations:

* **All units:**
  * Configuration of drive parameters, signal types and fault handling.
  * On board bootloader.
  * Additional Telemetry types: PWM Telemetry and RPM Output.
  * High-speed telemetry rates (digital protocols).
  * Reversible drive mode operation support (full forwards to full reverse).
  * Dynamic signal quality checks across supported input protocols.
* **80F3\[X]v2 and 120F3\[X]v2:**
  * Bi-Directional DShot for RPM Filtering support.
  * Passthrough firmware updating and configuration.
  * Hardware protection for UART programming pins.

#### Unit Identification

The V2 variation units are designed to be a drop-in replacement over the V1 counterparts, for minimum system-level changes. The PCB model number is visible for unit identification, as can be seen in the example below.

<figure><img src="/files/UWD1px3BUeFFqPCyohAK" alt=""><figcaption><p>Version 1 vs Version 2 F_Series identification.</p></figcaption></figure>

{% hint style="info" %}
Version 2 firmware is loaded on Version 2 units by default. Older firmware revisions are available upon request. [F Series Production Firmware](/downloads/firmware-releases/f-series-production-firmware.md)
{% endhint %}

### Electrical Capabilities (all variations)

* Up to 200 Amp continuous current\*
  * **40F3** - 40A continuous
  * **80F3\[X]** - 80A continuous
  * **100F3\[X]** - 100A continuous
  * **120F3\[X]** - 120A continuous
  * **200F3\[X]** - 200A continuous
* Up to 300 Amp burst current
  * **40F3** - 100A burst
  * **80F3\[X]** - 140A burst
  * **100F3\[X]** - 150A burst
  * **120F3\[X]** - 200A burst
  * **200F3\[X]** - 300A burst
* \[X] designates higher-performance ESCs for larger applications
* Up to 14S capable
* True 10-Bit throttle resolution
* 8-Layer PCB for minimal track resistance
* Intelligent current sensing
* 750,000 eRPM

### Communication Capabilities (all variations)

* Auto frequency PWM (50-500Hz) and DShot input
* DSHOT150 to DSHOT600 (0.15-0.6MBs/s)
* Auto Timing Advance
* BetaFlight telemetry output
* Digital commands over DShot
* Anti-Turtle mode
* Plug and Play firmware

### Physical Properties (all variations)

* LED indication
* Weight (no cables):
  * **40F3** - 0.003KG
  * **80F3\[X]** - 0.01KG
  * **100F3\[X]** - 0.013KG
  * **120F3\[X]** - 0.02KG
  * **200F3\[X]** - 0.036KG

{% hint style="info" %}
Continuous current ratings are at a 100% throttle duty cycle. Continuous rating is defined as max sustained current at 100% throttle for 60 seconds with 33 m/s airflow.
{% endhint %}

{% hint style="success" %}
NDAA/DFARS-compliant options available upon request.
{% endhint %}