Description
SPEKTRUM SMART FIRMA BRUSHED 40AMP ESC/RX
The Firma 40 amp brushed ESC is the ideal option for 1/10 scale kits and a great upgrade for brushed models. Crawlers and Scalers will love the built-in receiver and will be blown away by the integrated telemetry available with Smart Technology.
- Integrated SMART Technology
Built-in 4-Channel DSMR® Receiver
Waterproof design
- Dedicated LED power connectors
Multiple protection points
Upgrade your brushed motor equipped models to Spektrum™ Smart Technology with the Firma™ Smart 40 Amp Brushed ESC. Get valuable battery and ESC telemetry data easily and in real time right on your Smart-compatible Spektrum transmitter — including motor current, input voltage, remaining battery capacity and other information that will help endurance RC trailers increase efficiency and extend battery life and run time.Built with Crawler and Scaler models in mind, the Firma 40 Amp Brushed ESC features a waterproof and dust proof design to keep you going down the trail in nearly any conditions. It has a powerful 3 amp BEC for your lights, winch and steering servo. And it’s fully programmable using an optional programmer box, so you can customize the ESC to suit your model’s needs and your own driving style.
The Firma 40 Amp Brushed ESC also helps reduce clutter and streamline your setup with an industry-leading, integrated 4-channel DSMR®/DSM2® receiver. This integrated receiver system is perfectly suited to allow drivers the options for winch setups, dual steering mixes and more. And setup is simple, with a convenient bind button and no complicated calibrations. When using Smart telemetry, alarms and parameters are setup automatically on your Spektrum transmitter.
What’s in the Box?
- (1) Spektrum™ Firma™ 40 Amp Brushed Smart 2-in-1 ESC and Receiver
(1) Product Manual
The Firma™ Smart 40 Amp Brushed ESC is ready to transmit valuable telemetry data using the latest advances in connectivity with Spektrum Smart Technology. Smart Technology ensures that all of your vehicle’s electronics work together for the greatest efficiency and performance. It keeps you aware of every component’s status and boosts your confidence in its capabilities, with no additional sensors or wires required.
- Telemetry Data Shown with Firma™ 40 Amp Brushed ESC:
Smart Battery Data
Cell Voltage and Balance
Battery Cycle Count
Battery Temperature
Capacity Used and Percent Remaining
ESC Data
Motor Current
ESC Temperature
Input Voltage
Auto Cutoff:Yes
BEC:Yes
BEC Continous Current:3A
BEC Type:Programmable using optional programmer box (not included)
BEC Voltage:6V
Band:2404MHz, 2476MHz
Battery Connector:IC3
Brakes:Yes
Channels:4
Forward:Yes
Height:0.81 in (20.5mm)
Input Voltage:6-10.8V (2-3S LiPo, 5-9 cell NiMH)
Length:2.1 in (54mm)
Low-Voltage Cutoff Programmable:Yes
Maximum Burst Current:180A
Maximum Continuous Current:40A
Motor Connector:3.5mm Bullet
Overload Protection:yes
Reverse:Yes
Technology:Smart Technology
Type:DSMR ESC/Receiver
Weight:2.4oz (68g)
Width:1.3 in (33.5mm)






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