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Technical Specifications
Last Updated: 2026-10-10
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | S15-X |
| Category | Hobby |
| Discontinued | Yes |
| Performance | |
| Torque |
8.4V
229.19 oz-in
16.50 kg-cm
1.6 N-m
7.4V
208.35 oz-in
15.00 kg-cm
1.5 N-m
6.0V
159.74 oz-in
11.50 kg-cm
1.1 N-m
Average
|
| Speed |
8.4V
0.05 sec/60°
1,200.0 deg/s
200.0 RPM
8.4V
0.05 sec/60°
1,200.0 deg/s
200.0 RPM
7.4V
0.06 sec/60°
1,000.0 deg/s
166.7 RPM
7.4V
0.06 sec/60°
1,000.0 deg/s
166.7 RPM
6.0V
0.07 sec/60°
857.1 deg/s
142.9 RPM
Above Average
6.0V
0.07 sec/60°
857.1 deg/s
142.9 RPM
Above Average
|
| Physical | |
| Weight | 1.99 oz56.5 gBelow Average |
| Dimensions |
L 1.61 in W 0.79 in H 1.02 in L 40.9 mm W 20.1 mm H 25.9 mm |
| Case Material | Aluminum |
| Drivetrain | |
| Motor Type | Brushless |
| Gears | Titanium |
| Gear Spline/Teeth | 25 T |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Rotational Range | 120° |
| Pulse Cycle | 3.003 ms |
| Neutral Position | 1520 µs |
| Refresh Rate | 1500 Hz |
| Programmable | Yes |
| Electrical & Environment | |
| Operating Voltage | 6–8.4 V |
| Temperature | -10–60 °C14–140 °F |
| Connectivity | |
| Connector | JR (Universal) estimate |
| Wire Length | 80 mm3.15 in |
| Origin | |
| Country of Origin | Hong Kong |
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 | Average Stronger than 60% of 136 Digital Low Profile servos at 6.0V |
| Speed | Above Average Faster than 83% of 135 Digital Low Profile servos at 6.0V |
| Weight | Below Average Lighter than 27% of 251 Digital Low Profile servos |
Performance Analysis
| Shaft Power | 4.22–8.48 W |
| Power Density | 6.533 W/in³ More power-dense than 79% of 215 Digital Low Profile servos |
| Torque Density | 2.8273 oz-in/g Stronger than 50% of 136 Digital Low Profile servos |
| Torque-to-Volume Ratio | 123.13 oz-in/in³ Denser torque than 64% of 136 Digital Low Profile servos |
| Speed-to-Weight | 0.25285 (1/sec·g) Faster than 70% of 135 Digital Low Profile servos |
| Speed-Torque Trade-off | 11.18 Better balanced than 38% of 134 Digital Low Profile servos |
| Torque Gain per Volt | 18.12%/V More voltage-responsive (torque) than 65% of 115 Digital Low Profile servos |
| Speed Gain per Volt | 16.67%/V More voltage-responsive (speed) than 69% of 117 Digital Low Profile servos |
| Voltage Range Width | 2.4 V Wider voltage range than 45% of 223 Digital Low Profile servos |
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