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Technical Specifications
Last Updated: 2026-10-10
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | S4078 |
| Category | Hobby |
| Performance | |
| Torque |
7.4V
51.39 oz-in
3.70 kg-cm
0.4 N-m
6.0V
43.06 oz-in
3.10 kg-cm
0.3 N-m
4.8V
34.72 oz-in
2.50 kg-cm
0.2 N-m
Above Average
|
| Speed |
7.4V
0.05 sec/60°
1,200.0 deg/s
200.0 RPM
6.0V
0.06 sec/60°
1,000.0 deg/s
166.7 RPM
4.8V
0.07 sec/60°
857.1 deg/s
142.9 RPM
Top 10%
|
| Physical | |
| Weight | 0.81 oz23.0 gBottom 10% |
| Dimensions |
L 0.91 in W 0.47 in H 1.12 in L 23.1 mm W 11.9 mm H 28.4 mm |
| Case Material | Aluminum |
| Drivetrain | |
| Motor Type | Coreless |
| Gears | Metal |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Electrical & Environment | |
| Operating Voltage | 4.8–8.4 V |
| Power Source | 2S LiPo |
| Connectivity | |
| Connector | JR (Universal) |
Disclaimer: Most data is sourced from the manufacturer. Some data is sourced from our loyal community and with the help of AI. We aim for accuracy but are not responsible for inaccurate information.
Class Comparison
| Torque | Above Average Stronger than 67% of 328 Digital Micro servos at 4.8V |
| Speed | Top 10% Faster than 91% of 328 Digital Micro servos at 4.8V |
| Weight | Bottom 10% Lighter than 2% of 620 Digital Micro servos |
Performance Analysis
| Shaft Power | 0.92–1.90 W |
| Power Density | 3.967 W/in³ More power-dense than 69% of 590 Digital Micro servos |
| Torque Density | 1.5096 oz-in/g Stronger than 10% of 327 Digital Micro servos |
| Torque-to-Volume Ratio | 72.48 oz-in/in³ Denser torque than 51% of 327 Digital Micro servos |
| Speed-to-Weight | 0.62112 (1/sec·g) Faster than 35% of 327 Digital Micro servos |
| Speed-Torque Trade-off | 2.43 Better balanced than 35% of 327 Digital Micro servos |
| Voltage Range Width | 3.6 V Wider voltage range than 88% of 511 Digital Micro servos |
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