Spektrum Firma 120A Smart ESC for surface vehicles is waterproof and delivers power and intelligence all-in-one. Without additional sensors or modules, they feed battery and ESC telemetry data straight to your radio in real time, all over one connection.
Firma 120A Brushless Smart ESC, 3S-4S Overview
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!
Firma 120A Brushless Smart ESC, 3S-4S 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
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
Firma 120A Brushless Smart ESC, 3S-4S Product Specs
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