Firma 120A Brushless Smart ESC 4S

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Like every component in the Spektrum&trade Smart ecosystem, Firma&trade 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!


Product Features

  • 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&trade engineers, in partnership with the industry's leading ESC manufacturer
  • Ideal for 1/8th scale surface applications running on 4s Lipo setups
  • High current adjustable BEC (6v or 7.4v @ 4 Amps)
  • 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&trade connectors, backwards compatible with EC&trade connectors
  • Limited 1-year warranty


Needed to Complete

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


What's in the Box?

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


Product Specifications

  • Auto Cutoff     Yes
  • Battery Type     LiPo (3.7V per cell)
  • BEC Continous Current     4A
  • BEC Voltage     6 and 7V selectable
  • Brakes     Yes
  • Connector Type     IC5
  • Drive Type     Forward/Brake/Reverse
  • Input Voltage     6.0V - 14.4V (2-4S LiPo, 5-12 cell NiMH)
  • Low-Voltage Cutoff Programmable     Yes
  • Maximum Burst Current     830A
  • Maximum Continuous Current     120A
  • Output Connector     4mm Bullets
  • Overload Protection     Yes
  • Product Height     1.33" (34 mm)
  • Product Length     1.7" (43 mm)
  • Product Weight     0.33
  • Product Width     1.53" (39 mm)
  • Programmable     Yes
  • Reverse     Yes
  • Technology     Smart
  • Time Delay Brake     Yes
  • Water-Resistant     Yes


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