Spektrum Firma 120 Black Edition Brushless Smart ESC 3S-4S

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
• 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 connectors, backwards compatible with EC connectors
• Limited 1-year warranty

Amperage: 120A or larger
Application: Surface
Auto Cutoff: Yes
Battery Input Lead: IC5
BEC: Yes
BEC Continous Current: 4
BEC Voltage: 6 and 7V selectable
Brakes: Yes
Connector Type: IC5, 4mm Bullet
Drive Type: Forward/Brake/Reverse
ESC Type: Brushless
Input Voltage: 11.1V to 14.8V (3S – 4S LiPo, 8-12 cell NiMH)
Low-Voltage Cutoff Programmable: Yes
Max Input Voltage: 14.8V
Maximum Burst Current: 830A
Maximum Continuous Current: 120A
Motor Output Lead: 4mm
Output Connector: 4mm Bullet
Overload Protection: Yes
Product Application: Surface
Product Height: 1.33" (34 mm)
Product Length: 1.7" (43 mm)
Product Weight: 5.4 oz (153g)
Product Width: 1.53" (39 mm)
Programmable: Yes
Programming Options: Button, Programming Box, Smartlink App, On Screen Text Gen
Reverse: Yes
Technology: Smart
Time Delay Brake: Yes
Water-Resistant: Yes
WATERPROOF:
The all-weather, waterproof design of Spektrum Firma Smart ESCs allows them to perform in nearly any terrain under almost any conditions. Firma ESCs keep you going through dust, gravel, snow, and water.

EC3/EC5 BACKWARDS COMPATIBLE:
Firma ESCs feature IC series battery connectors. The IC series of connectors are designed from the ground up to provide a more solid connection, higher heat resistance, and effortless installation. When used with an IC3 or IC5 connector-equipped Spektrum Smart battery, the ESC can receive and transmit battery telemetry data. EC3 and EC5 are also compatible with Firma ESCs for basic operation and ESC telemetry.

ONE-WIRE TELEMETRY:
No need to connect multiple wires, sensors, modules, and links. With Firma ESCs, simple one-wire telemetry transmits a wide range of data directly to your transmitter in real time, including RPM, voltage, temperature, balance, capacity, and speed.*

SMART TECHNOLOGY BATTERY DATA:
When used with a Spektrum Smart LiPo battery, your Firma ESC provides you with the benefit of battery telemetry that's automatically transmitted to your compatible Spektrum radio in real time. On your transmitter screen you'll be presented with helpful information such as number of cycles, battery percentage, individual cell voltage and more!

MULTIPLE PROGRAMMING OPTIONS:
Multiple programming options are available. Button programming can be used with nothing more needed. Using the Smart Firma ESC Programming Box, you can easily change settings at the track to suit driving conditions. An easy-to-use Smart Link USB Updating and PC Programmer app is also available.

FAST, POWERFUL M4 PROCESSOR:
The Firma ESCs' 32-bit M4 processor produces higher resolution signal input and more accurate motor output.