Overview
FrSky Act 5400 Series coreless high-voltage servo options (S5412H, S5414H, S5415H) feature a fully CNC-machined aluminum protective case, metal gears, and support up to 8.4V for high speed and torque performance. These servos are designed for RC models where power, reliability, and precision are required.
Key Features
- High durability metal gear
- All-aluminum CNC-machined protective case
- 8.4V high-voltage capability
- Integrated dual precision ball bearing and potentiometer
Specifications
| Series | Act Coreless 5400 Series High-Voltage Servos |
| Dimension (L×W×H) | 40×20×39mm |
| Weight | 80g |
| Horn spline | Φ6 25T |
| Stall current | 4.7A@6.0V / 5.8A@7.4V / 6.6A@8.4V |
| Operating voltage range | 4.8~8.4V |
| Reflash rate | 1520us/333Hz |
Performance (Torque | Speed)
| Model | @6.0V | @7.4V | @8.4V |
|---|---|---|---|
| S5412H | 22 kgf.cm (305.5 Oz-in) | 0.07 sec/60° | 27 kgf.cm (375 Oz-in) | 0.06 sec/60° | 30 kgf.cm (416.6 Oz-in) | 0.05 sec/60° |
| S5414H | 47 kgf.cm (652.7 Oz-in) | 0.12 sec/60° | 55 kgf.cm (763.8 Oz-in) | 0.10 sec/60° | 63 kgf.cm (874.9 Oz-in) | 0.08 sec/60° |
| S5415H | 53 kgf.cm (736 Oz-in) | 0.15 sec/60° | 63 kgf.cm (874.9 Oz-in) | 0.12 sec/60° | 71 kgf.cm (986 Oz-in) | 0.10 sec/60° |
Applications
- RC aircraft control surfaces
- RC helicopter cyclic/collective servo installations
- RC car/truck steering systems
- Robotics and other precision actuator projects
For help choosing between S5412H, S5414H, and S5415H for a specific setup and voltage, contact support@rcdrone.top or visit https://rcdrone.top/.
Details

Compare torque and speed for S5412H, S5414H, and S5415H at 6.0V, 7.4V, and 8.4V, along with size, weight, spline, and operating range.
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