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Technical Specifications
Last Updated: 2026-10-24
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
Below 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 | Cored |
| 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 |
| Programmable | No |
| Electrical & Environment | |
| Operating Voltage | 4.8–6 V |
| Temperature | -10–60 °C14–140 °F |
| Connectivity | |
| Connector | JR (Universal) estimate |
| Wire Length | 160 mm6.3 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 52% of 290 Digital Mini servos at 4.8V |
| Speed | Below Average Faster than 25% of 293 Digital Mini servos at 4.8V |
| Weight | Average Lighter than 59% of 505 Digital Mini servos |
Performance Analysis
| Shaft Power | 0.74–1.11 W |
| Power Density | 2.059 W/in³ More power-dense than 58% of 482 Digital Mini servos |
| Torque Density | 2.5948 oz-in/g Stronger than 60% of 286 Digital Mini servos |
| Torque-to-Volume Ratio | 110.51 oz-in/in³ Denser torque than 72% of 288 Digital Mini servos |
| Speed-to-Weight | 0.28986 (1/sec·g) Faster than 38% of 289 Digital Mini servos |
| Speed-Torque Trade-off | 8.95 Better balanced than 62% of 288 Digital Mini servos |
| Torque Gain per Volt | 17.44%/V More voltage-responsive (torque) than 57% of 257 Digital Mini servos |
| Speed Gain per Volt | 20.83%/V More voltage-responsive (speed) than 75% of 262 Digital Mini servos |
| Voltage Range Width | 1.2 V Wider voltage range than 14% of 405 Digital Mini servos |
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