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Technical Specifications
Last Updated: 2026-10-10
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | KST-0054 |
| Category | Hobby |
| Performance | |
| Torque |
8.4V
24.98 oz-in
1.80 kg-cm
0.2 N-m
6.0V
20.82 oz-in
1.50 kg-cm
0.1 N-m
3.8V
11.10 oz-in
0.80 kg-cm
0.1 N-m
Average
|
| Speed |
8.4V
0.07 sec/60°
857.1 deg/s
142.9 RPM
6.0V
0.08 sec/60°
750.0 deg/s
125.0 RPM
3.8V
0.12 sec/60°
500.0 deg/s
83.3 RPM
Below Average
|
| Stall Current | ≤0.58 A≤580 mA |
| Physical | |
| Weight | 0.21 oz6.0 gBelow Average |
| Dimensions |
L 0.787 in W 0.276 in H 0.654 in L 20.0 mm W 7.0 mm H 16.6 mm |
| Case Material | Aluminum |
| Drivetrain | |
| Motor Type | Coreless |
| Gears | Steel |
| Gear Spline/Teeth | 15 T |
| Rotation Mode | Positional |
| Rotation/Support | Single Bearing |
| Control & Signal | |
| Modulation | Digital |
| Rotational Range | 120° |
| Pulse Cycle | 3.003 ms |
| Pulse Width | 1000-2000 µs |
| Neutral Position | 1500 µs |
| Dead Band | 2 µs |
| Refresh Rate | 333 Hz |
| Angle Sensor | Potentiometer |
| Control System | PWM |
| Programmable | Yes |
| Electrical & Environment | |
| Operating Voltage | 3.8–8.4 V |
| Temperature | -20–65 °C-4–149 °F |
| Connectivity | |
| Connector | JR (Universal) estimate |
| Wire Length | 150 mm5.91 in |
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 61% of 29 Nano servos at 3.8V |
| Speed | Below Average Faster than 18% of 29 Nano servos at 3.8V |
| Weight | Below Average Lighter than 18% of 41 Digital Nano servos |
Performance Analysis
| Shaft Power | 0.17–0.66 W |
| Power Density | 4.653 W/in³ More power-dense than 85% of 35 Digital Nano servos |
| Torque Density | 1.8500 oz-in/g Stronger than 12% of 74 KST servos |
| Torque-to-Volume Ratio | 78.27 oz-in/in³ Denser torque than 14% of 74 KST servos |
| Speed-to-Weight | 1.38889 (1/sec·g) 2nd-highest speed-to-weight of 73 KST servos |
| Speed-Torque Trade-off | 1.33 Better balanced than 0% of 73 KST servos |
| Current-per-Torque Ratio | 0.0523 A/oz-in More efficient than 10% of 671 Hobby servos |
| Torque Gain per Volt | 27.18%/V 5th-highest torque gain per volt of 73 KST servos |
| Speed Gain per Volt | 15.53%/V More voltage-responsive (speed) than 51% of 72 KST servos |
| Voltage Range Width | 4.6 V 5th-highest voltage range width of 32 Digital Nano servos |
| Dead-Band-to-Pulse-Width Ratio | 0.0020 Finer dead band than 37% of 973 Hobby servos |
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