Spektrum SPMXSEMC02 Firma 85A Brushless Smart ESC / 4000Kv Sensorless Motor Combo

Spektrum Firma 85A 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. Now includes a compatible 4000Kv Firma Brushless Sensorless motor when you purchase the combo

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 2WD 1/10th scale surface applications running on 2s Lipo setups
Includes high performance and durability Spektrum Firma 4000kV 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
Product 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!

Needed to Complete
Spektrum™ Surface Receiver
Spektrum Smart Technology LiPo Battery
Spektrum Transmitter

What's in the Box?
(1) Spektrum™ Firma™ Smart ESC
(1) Spektrum Smart sticker sheet
(1) Product Manual
Video Overview
 

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

Product Specifications

Adjustable Timing No
Auto Cutoff Yes
Battery Input Lead 12AWG 5.1" (130mm)
Battery Type LiPo (3.7V per cell)
BEC Yes
BEC Continous Current 4A
BEC Maximum Burst Current 8A
BEC Type Switch Mode
BEC Voltage 6V/7.4V
Brakes Yes
Connector Type IC3
Drive Type Forward/Brake/Reverse
Efficiency 81%
Forward Yes
Input Voltage 2S LiPo for included motor (do not exceed 2S LiPo power with this motor)
Low-Voltage Cutoff Programmable Yes
Maximum Burst Current 550A
Maximum Continuous Current 40A
Motor Connector 4mm Bullet
Motor Design Inrunner
Motor Type Brushless - Sensorless
Number of Poles 4
Outer Diameter 1.41" (36 mm)
Output 625W
Overload Protection Yes
Product Height 1.3" (33 mm)
Product Length 1.7" (43 mm)
Product Weight 0.255lbs (116g)
Product Width 2.1" (53 mm)
Programmable Yes
Reverse Yes
RPM/Volt (Kv) 4000Kv
Shaft Diameter 0.125" (3 mm)
Speed Control Included
Technology Smart
Time Delay Brake Yes
Water-Resistant Yes