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Technical Specifications
Last Updated: 2026-10-10
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | KST-2503 |
| Category | Hobby |
| Performance | |
| Torque |
13.0V
971.60 oz-in
69.96 kg-cm
6.9 N-m
12.0V
832.80 oz-in
59.97 kg-cm
5.9 N-m
8.4V
694.00 oz-in
49.97 kg-cm
4.9 N-m
|
| Speed |
13.0V
0.09 sec/60°
666.7 deg/s
111.1 RPM
12.0V
0.10 sec/60°
600.0 deg/s
100.0 RPM
8.4V
0.13 sec/60°
461.5 deg/s
76.9 RPM
|
| Physical | |
| Weight | 2.65 oz75.0 gBelow Average |
| Dimensions |
L 1.575 in W 0.787 in H 1.575 in L 40.0 mm W 20.0 mm H 40.0 mm |
| Case Material | Aluminum |
| Drivetrain | |
| Motor Type | Brushless |
| Gears | Steel |
| Rotation Mode | Positional |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Rotational Range | 200° |
| Pulse Cycle | 3.003 ms |
| Pulse Width | 1000-2000 µs |
| Neutral Position | 1520 µs |
| Refresh Rate | 333 Hz |
| Angle Sensor | Hall Effect |
| Control System | PWM |
| Programmable | Yes |
| Electrical & Environment | |
| Operating Voltage | 8–13 V |
| Temperature | -10–65 °C14–149 °F |
| Connectivity | |
| Connector | JR (Universal) estimate |
| Origin | |
| Country of Origin | China |
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
| Weight | Below Average Lighter than 21% of 1902 Digital Standard servos |
Performance Analysis
| Shaft Power | 9.87–19.96 W |
| Power Density | 10.222 W/in³ More power-dense than 98% of 1759 Digital Standard servos |
| Torque Density | 9.2533 oz-in/g |
| Torque-to-Volume Ratio | 355.40 oz-in/in³ |
| Speed-to-Weight | 0.10256 (1/sec·g) |
| Speed-Torque Trade-off | 90.23 |
| Voltage Range Width | 5.0 V Wider voltage range than 98% of 1539 Digital Standard servos |
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