Spektrum Firma 85A Brushless Smart ESC / 3300Kv Sensorless Motor Combo
Spektrum Firma 85A Brushless Smart ESC / 3300Kv Sensorless Motor Combo

Spektrum Firma 85A Brushless Smart ESC / 3300Kv Sensorless Motor Combo

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Your Price: $104.99
Part Number: SPMXSEMC01
GTIN: 605482692387
Brand: Spektrum
Availability: Coming Soon

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!

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™ engineers, in partnership with the industry's leading ESC manufacturer
  • Hand-picked combo for 4WD 1/10th scale surface applications running on 3s Lipo setups
  • Includes high performance and durability Spektrum Firma 3300kV Brushless motor
  • 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™ connectors, backwards compatible with EC™ connectors
  • Limited 1-year warranty


BEC Maximum Burst Current8A
BEC Voltage6V/7.4V
Drive TypeForward/Brake/Reverse
Input Voltage2-3S LiPo, do not exceed 3S (11.1V) with this motor
Kv Rating3000Kv or more
Motor Output Lead4
Part TypeElectronics
Product ApplicationSurface
Product Height1.3" (33 mm)
RPM/Volt (Kv)38,400 @ 12V
Sensor TypeSensordless
Time Delay BrakeYes
Adjustable TimingNo
Battery TypeLiPo (3.7V per cell)
Integrated ESCNo
Programming OptionsButton, Programming Box, Smartlink App, On Screen Text Gen
Battery Input LeadIC3
Outer Diameter1.41" (36 mm)
Product Width2.1" (53 mm)
Constant Wattage750-999W
Maximum Burst Current550A
Maximum Continuous Current33A
Motor TypeBrushless
Wire Gauge12 AWG
Auto CutoffYes
BEC Continous Current4
Low-Voltage Cutoff ProgrammableYes
Number of Poles4
Output430W(2S), 780W(3S)
Product Weight0.255
Shaft Diameter0.125" (3 mm)
Connector TypeIC3
ESC TypeBrushless
Motor Class1/10 Scale
Product Length1.7" (43 mm)
Amperage80A - 99A
BEC TypeSwitch Mode
Max Input Voltage11.1V
Motor DesignInrunner

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