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 8A Sensored Brushless ESC / Motor Combo: 1/24 Rock Crawlers 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.
Firma 8A Sensored Brushless ESC / Motor Combo: 1/24 Rock Crawlers fits customers looking for Spektrum items in Spektrum Catalog, Spektrum ESCs, Spektrum Surface Electronics, with RC-MODEL support for choosing the right configuration.
Firma 8A Sensored Brushless ESC / Motor Combo: 1/24 Rock Crawlers 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.
These guides explain the setup, safety checks and accessory choices that usually matter for this product type.
Channels, receiver protocols, telemetry, range, redundancy and what to check before matching a transmitter to a model.
A practical binding guide for matching protocol, bind mode, receiver power, model memory, control checks and common binding mistakes.
Failsafe setup for electric and fuel aircraft: throttle behavior, receiver signal loss, switch positions and safe verification before flight.
Make an aircraft calmer for beginners by setting low rates, high rates and expo without hiding mechanical setup problems.
Ground checks, takeoff planning, trim passes, battery timing and first landing strategy for a new or repaired RC aircraft.
| Technical Specifications | |
| Manufacturer | Spektrum |
| Brand | Spektrum |
| Product Code | SPMXSEMC18 |
| Spektrum Category | Cars & Trucks / Parts, Electronics & Accessories / Electronic Speed Controls |
| Connector Type | PH 2.0 (High-Current Ultra Micro) |
| Product Family | Spektrum telemetry and sensor range |
| Application | surface RC vehicles, crawlers, bashers and race setups that need dependable Spektrum control electronics |
| Compatibility Focus | Check model fit, connector type, voltage range and Spektrum protocol compatibility before ordering. |
| Auto Cutoff | Yes |
| BEC | Yes |
| BEC Voltage | 5V |
| Brakes | Integral with ESC |
| Forward | Yes |
| Input Voltage | 1 - 2S LiPo |
| Maximum Continuous Current | 8A |
| Product Height | 0.46" (12 mm) |
| Product Length | 1.05" (27 mm) |
| Product Weight | 10g ESC / 16g Motor |
| Product Width | 0.6" (15 mm) |
| Programmable | No |
| Reverse | Yes |
| BEC Continuous Current | 0.3A |
| Low-Voltage Cutoff Programmable | No |
| Motor Type | Brushless |
| Output Connector | 2mm Bullet |
| Overload Protection | Yes |
| Water-Resistant | No |
| ESC Type | Brushless Sensored |
| Number of Poles | 2 |
| RPM/Volt (Kv) | 4500 |
| Outer Diameter | 0.6" (15 mm) |
| Maximum Burst Current | 40A |
| Sensored | Yes |
Tags: Spektrum, SPMXSEMC18, Spektrum telemetry and sensor range, Spektrum Catalog, Spektrum ESCs, Spektrum Surface Electronics, RC-MODEL
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