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Technical Specifications
Last Updated: 2026-10-10
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | KST-0803 |
| Category | Hobby |
| Performance | |
| Torque |
6.0V
72.17 oz-in
5.20 kg-cm
0.5 N-m
4.8V
59.68 oz-in
4.30 kg-cm
0.4 N-m
Average
|
| Speed |
6.0V
0.12 sec/60°
500.0 deg/s
83.3 RPM
4.8V
0.15 sec/60°
400.0 deg/s
66.7 RPM
Average
|
| Physical | |
| Weight | 0.81 oz23.0 gAverage |
| Dimensions |
L 1.181 in W 0.394 in H 1.161 in L 30.0 mm W 10.0 mm H 29.5 mm |
| Case Material | Aluminum |
| Drivetrain | |
| Motor Type | Coreless |
| Motor Drive | FET |
| Gears | Aluminum |
| Gear Spline/Teeth | 25 T |
| Rotation Mode | Positional |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Rotational Range | 100° |
| Pulse Cycle | 3.003 ms |
| Pulse Width | 800-2200 µs |
| Neutral Position | 1520 µs |
| Refresh Rate | 333 Hz |
| Angle Sensor | Potentiometer |
| Control System | PWM |
| Electrical & Environment | |
| Operating Voltage | 4.8–6 V |
| Temperature | -10–65 °C14–149 °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 42% of 60 Digital Slim servos at 4.8V |
| Speed | Average Faster than 53% of 59 Digital Slim servos at 4.8V |
| Weight | Average Lighter than 49% of 103 Digital Slim servos |
Performance Analysis
| Shaft Power | 0.74–1.11 W |
| Power Density | 2.059 W/in³ More power-dense than 26% of 99 Digital Slim servos |
| Torque Density | 2.5948 oz-in/g Stronger than 27% of 60 Digital Slim servos |
| Torque-to-Volume Ratio | 110.51 oz-in/in³ Denser torque than 41% of 60 Digital Slim servos |
| Speed-to-Weight | 0.28986 (1/sec·g) Faster than 48% of 59 Digital Slim servos |
| Speed-Torque Trade-off | 8.95 Better balanced than 48% of 59 Digital Slim servos |
| Torque Gain per Volt | 17.44%/V More voltage-responsive (torque) than 55% of 56 Digital Slim servos |
| Speed Gain per Volt | 20.83%/V More voltage-responsive (speed) than 76% of 55 Digital Slim servos |
| Voltage Range Width | 1.2 V Wider voltage range than 16% of 93 Digital Slim servos |
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