Radio systems and receivers: choosing a reliable control link
Channels, receiver protocols, telemetry, range, redundancy and what to check before matching a transmitter to a model.
Firma 85A Brushless Smart ESC / 4000Kv Sensorless Motor Combo
Prices are intentionally not displayed on the site.
Contact RC-MODEL for current availability, technical fit, compatible accessories and a formal quote.
Why choose Firma 85A Brushless Smart ESC / 4000Kv Sensorless Motor Combo through RC-MODEL?
Firma 85A Brushless Smart ESC / 4000Kv Sensorless Motor Combo is an RC product from Spektrum. This page focuses on what an end customer needs: fit, use cases, specifications and imagery, without prices or outbound supplier detours.
Fit and use
Firma 85A Brushless Smart ESC / 4000Kv Sensorless Motor Combo fits customers looking for Spektrum items in Spektrum Catalog, Spektrum ESCs, Spektrum Surface Electronics, with RC-MODEL support for choosing the right configuration.
- Relevant category: Spektrum Catalog, Spektrum ESCs, Spektrum Surface Electronics
- Product identification for inquiry: model SPMXSEMC02 / SKU SPMXSEMC02
Key details
- Input Voltage: 2S LiPo for included motor (do not exceed 2S LiPo power with this motor)
- Motor Class: 1/10 Scale
- Spektrum Category: Cars & Trucks / Parts, Electronics & Accessories / Electronic Speed Controls
- Battery Type: LiPo (3.7V per cell)
- BEC Voltage: 6V/7.4V
- Motor Output Lead: 4
Before ordering
- Confirm dimensions, power system, radio compatibility or material size before purchase.
- Ask us to match required accessories, adhesives, hardware, batteries or replacement parts.
- RC-MODEL helps with fit checks, availability, compatible accessories and a formal quote in Israel.
Firma 85A Brushless Smart ESC / 4000Kv Sensorless Motor Combo is a Spektrum product intended for surface RC vehicles, crawlers, bashers and race setups that need dependable Spektrum control electronics. This page presents the practical buying information a customer needs before ordering: fit, SKU, image, category, specifications and usage advantages.
The content is written for purchasing through RC-MODEL, without supplier prices or links to competing stores.
Key Advantages
- Organized under the Spektrum telemetry and sensor range.
- Intended for surface RC vehicles, crawlers, bashers and race setups that need dependable Spektrum control electronics.
- Check compatibility with Spektrum Smart equipment and the exact model requirements before ordering.
- Includes local product imagery and structured specifications for easier comparison inside RC-MODEL.
- Spektrum Smart compatibility is highlighted where relevant for batteries, chargers, ESCs or telemetry-aware systems.
- Smart all-in-one telemetry
- Fast, powerful 32-bit ARM M4 processor
- Waterproof
Core Specifications
- Manufacturer: Spektrum
- Brand: Spektrum
- Product Code: SPMXSEMC02
- Product Family: Spektrum telemetry and sensor range
- Application: Surface
- Compatibility Focus: Check compatibility with Spektrum Smart equipment and the exact model requirements before ordering.
- Spektrum Category: Cars & Trucks / Parts, Electronics & Accessories / Electronic Speed Controls
- Input Voltage: 2S LiPo for included motor (do not exceed 2S LiPo power with this motor)
- Amperage: 80A - 99A
- Motor Type: Brushless
- Adjustable Timing: No
- Auto Cutoff: Yes
- Battery Input Lead: IC3
- Battery Type: LiPo (3.7V per cell)
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| Technical Specifications | |
| Manufacturer | Spektrum |
| Brand | Spektrum |
| Product Code | SPMXSEMC02 |
| Spektrum Category | Cars & Trucks / Parts, Electronics & Accessories / Electronic Speed Controls |
| Connector Type | IC3 |
| Product Family | Spektrum telemetry and sensor range |
| Application | Surface |
| Compatibility Focus | Check compatibility with Spektrum Smart equipment and the exact model requirements before ordering. |
| Battery Type | LiPo (3.7V per cell) |
| Adjustable Timing | No |
| Auto Cutoff | Yes |
| BEC | Yes |
| BEC Maximum Burst Current | 8A |
| BEC Type | Switch Mode |
| BEC Voltage | 6V/7.4V |
| Brakes | Yes |
| Forward | Yes |
| Input Voltage | 2S LiPo for included motor (do not exceed 2S LiPo power with this motor) |
| Maximum Continuous Current | 40A |
| Motor Output Lead | 4 |
| Product Height | 1.3" (33 mm) |
| Product Length | 1.7" (43 mm) |
| Product Weight | 0.255 |
| Product Width | 2.1" (53 mm) |
| Programmable | Yes |
| Reverse | Yes |
| Technology | Smart |
| Amperage | 80A - 99A |
| BEC Continuous Current | 4 |
| Low-Voltage Cutoff Programmable | Yes |
| Motor Type | Brushless |
| Overload Protection | Yes |
| Water-Resistant | Yes |
| Product Application | Surface |
| ESC Type | Brushless |
| Part Type | Electronics |
| Output | 625W |
| Number of Poles | 4 |
| RPM/Volt (Kv) | 4000Kv |
| Drive Type | Forward/Brake/Reverse |
| Outer Diameter | 1.41" (36 mm) |
| Shaft Diameter | 0.125" (3 mm) |
| Motor Design | Inrunner |
| Maximum Burst Current | 550A |
| Max Input Voltage | 11.1V |
| Battery Input Lead | IC3 |
| Programming Options | Button, Programming Box, Smartlink App, On Screen Text Gen |
| Motor Class | 1/10 Scale |
| Constant Wattage | 250-499W |
| Integrated ESC | No |
| Kv Rating | 3000Kv or more |
| Sensor Type | Sensorless |
| Speed Control | Included |
| Sensored | No |
| Time Delay Brake | Yes |
| Efficiency | 81% |
Tags: Spektrum, SPMXSEMC02, Spektrum telemetry and sensor range, Spektrum Catalog, Spektrum Smart Technology, Spektrum ESCs, Spektrum Surface Electronics, RC-MODEL