Spektrum Firma 150A Brushless Smart ESC (3-6S)

Sale price $159.99 Regular price $164.99

Free Pickup option available at our storefront in Jacksonville, Florida. Shipping also available to all 50 US States & Territories. See Shipping Policy for shipping cutoff times.

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
  • Multiple options for easy programming
  • Compact for easy installation in most applications
  • Ready to install — no soldering required
  • Rugged plastic case with mounting tabs
  • Adjustable high-power BEC
  • Firmware updatable through the Smart ESC Programming Box
  • High heat-resistant IC™ connectors, backwards compatible with EC™ connectors
  • Compatable with Arrma Kraton 6s, Typhon 6S and other RC vehicles.



  • Auto Cutoff: Yes
  • Battery Input Lead: IC5, EC5 compatible
  • BEC: Yes
  • BEC Continous Current: 5A
  • BEC Type: Linear
  • BEC Voltage: 6V
  • Brakes: Yes
  • Connector Type: IC5 
  • Forward: Yes
  • Input Voltage: 3S - 6LiPo
  • Low-Voltage Cutoff Programmable: Yes
  • Maximum Burst Current: 950A
  • Maximum Continuous Current: 150A
  • Motor Output Lead: 5.9" (150mm) 10AWG
  • Output Connector: 4mm Bullets
  • Overload Protection: Yes
  • Product Height: 1.5" (38.5mm)
  • Product Length: 2.3" (58mm)
  • Product Weight: 8.4oz (238g)
  • Product Width: 1.9" (47.5mm) without tabs, 2.3" (59.5mm) with tabs
  • Programmable: Yes
  • Reverse: Yes
  • Technology: Smart





(1) Spektrum Firma 150A Brushless Smart ESC



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