How to choose the right ESC for an RC aircraft
ESC selection by maximum current, voltage, BEC, safety margin, cooling, connector choice and the real load from motor and propeller.
Firma 25A Brushed ESC
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Contact RC-MODEL for current availability, technical fit, compatible accessories and a formal quote.
Firma 25A Brushed ESC 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 ESC and speed-control range.
- Intended for surface RC vehicles, crawlers, bashers and race setups that need dependable Spektrum control electronics.
- Check model fit, connector type, voltage range and Spektrum protocol compatibility before ordering.
- Includes local product imagery and structured specifications for easier comparison inside RC-MODEL.
Core Specifications
- Manufacturer: Spektrum
- Brand: Spektrum
- Product Code: SPMXSE1025
- Product Family: Spektrum ESC and speed-control 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.
- Spektrum Category: Cars & Trucks / Parts, Electronics & Accessories / Electronic Speed Controls
- Input Voltage: 2-3S LiPo and 5-9 Cell NiMH
- Amperage: 25A
- Motor Type: Brushed
- Dimensions: 34.0 x 24.0 x 14.0 (mm)
- Battery Connector: IC2
- BEC Continuous Current: 4A (Switch mode)
- BEC Voltage: 6V
Relevant RC Academy guides
Learn before you buy
These guides explain the setup, safety checks and accessory choices that usually matter for this product type.
How to build a correct electric power system
How to match motor, ESC, LiPo battery and propeller as one complete RC aircraft power setup instead of choosing parts separately.
How to measure current draw with a Watt Meter
A step-by-step safety guide for measuring amps, watts and voltage sag so customers avoid overheating motors, ESCs and LiPo batteries.
Internal BEC vs external UBEC: which should you use?
A guide to receiver and servo power: internal ESC BEC, external UBEC, receiver battery, redundancy and large aircraft safety decisions.
How to choose a LiPo battery for an RC aircraft
Cell count, capacity, C rating, connectors, battery weight and realistic flight time explained for RC aircraft buyers.
| Technical Specifications | |
| Manufacturer | Spektrum |
| Brand | Spektrum |
| Product Code | SPMXSE1025 |
| Spektrum Category | Cars & Trucks / Parts, Electronics & Accessories / Electronic Speed Controls |
| Product Family | Spektrum ESC and speed-control 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. |
| BEC Voltage | 6V |
| Input Voltage | 2-3S LiPo and 5-9 Cell NiMH |
| Motor Output Lead | 4mm Female Motor Bullets |
| Amperage | 25A |
| BEC Continuous Current | 4A (Switch mode) |
| Motor Type | Brushed |
| Overload Protection | Yes |
| Dimensions | 34.0 x 24.0 x 14.0 (mm) |
| Maximum Burst Current | 100A |
| Battery Connector | IC2 |
Tags: Spektrum, SPMXSE1025, Spektrum ESC and speed-control range, Spektrum Catalog, Spektrum ESCs, Spektrum Surface Electronics, RC-MODEL