Spektrum Firma 100A Brushless Smart ESC (2S-3S)

Quantity: Only 3 left in stock.




Like every component in the Spektrum Smart ecosystem, Firma Smart ESCs combine "plug-and-play" simplicity with the ability to communicate with other Smart electronics - together, creating the best-performing RC system for your vehicle imaginable.


Firma Smart ESCs do much more than regulate power. They function like a virtual engineer inside your model, providing a direct path to the vital operating data you need to reach peak performance. Firma Smart ESCs give you an extra layer of confidence that your electronics are all operating at their best.

With Firma Smart ESCs, you'll be better connected to your vehicle than ever before - without installing extra components that all work independently of each other. You won't need extra wires, modules, or links. A Firma electronic speed control provides a one-wire solution for obtaining telemetry data such as RPM, temperature, battery voltage and capacity.

Firma ESCs not only gather the data but also send it to your transmitter in real time, instead of only storing it for after-run study. You're able to adjust settings as needed to boost performance on the go. The Firma Smart single-wire telemetry solution has been tested for quality and performance by the best brands in RC. Their verdict? Smart technology is both simpler and superior!



  • Smart all-in-one telemetry
  • Fast, powerful 32-bit ARM M4 processor
  • Waterproof
  • Multiple options for easy programming:
    • Button programming
    • Smart ESC Programming Box
    • SmartLink USB Updating and Programmer application
  • Multi-point protection:
    • Over-current protection
    • Automatic LiPo low-voltage cutoff
    • Thermal protection
    • Failsafe protection
  • Developed and designed by Spektrum engineers, in partnership with the industry's leading ESC manufacturer
  • Compact for easy installation in most applications
  • Ready to install - no soldering required
  • Rugged plastic case with mounting tabs
  • Aluminum heat sink for high efficiency
  • Cooling fan
  • Adjustable high-power BEC
  • Firmware updatable through the Smart ESC Programming Box
  • High heat-resistant IC connectors, backwards compatible with EC connectors
  • Limited 1-year warranty



  • Auto Cutoff     Yes
  • Battery Type     LiPo (3.7V per cell)
  • BEC     Yes
  • BEC Continous Current     4A
  • BEC Voltage     6V and 7.4V selectable
  • Brakes     Yes
  • Connector Type     IC5
  • Drive Type     Forward/Brake/Reverse
  • Forward     Yes
  • Input Voltage     6.0V - 9.6V (2-4S LiPo, 5-9 cell NiMH)
  • Low-Voltage Cutoff Programmable     Yes
  • Maximum Burst Current     650A
  • Maximum Continuous Current     100A
  • Motor Output Lead     4mm Female Bullet
  • Motor Type     Brushless - Sensorless
  • Output     100A
  • Output Connector     4mm Bullet
  • Overload Protection     Yes
  • Product Height     1.33" (34 mm)
  • Product Length     1.7" (43 mm)
  • Product Weight     0.306lbs (139g)
  • Product Width     1.53" (39 mm)
  • Programmable     Yes
  • Reverse     Yes
  • Technology     Smart
  • Time Delay Brake     Yes
  • Water-Resistant     Yes


Needed to Complete

  • Spektrum Surface Receiver
  • Spektrum Smart Technology LiPo Battery
  • Spektrum Transmitter


What's in the Box?

  • (1) Spektrum Firma Smart ESC
  • (1) Spektrum Smart sticker sheet
  • (1) Product Manual


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