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Technical Specifications
Last Updated: 2026-10-25
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | KST-DS1509MG |
| Category | Hobby |
| Performance | |
| Torque |
7.4V
177.67 oz-in
12.79 kg-cm
1.3 N-m
6.0V
148.52 oz-in
10.69 kg-cm
1.0 N-m
4.8V
117.98 oz-in
8.50 kg-cm
0.8 N-m
Below Average
|
| Speed |
7.4V
0.07 sec/60°
857.1 deg/s
142.9 RPM
6.0V
0.08 sec/60°
750.0 deg/s
125.0 RPM
4.8V
0.10 sec/60°
600.0 deg/s
100.0 RPM
Average
|
| Physical | |
| Weight | 1.94 oz55.0 gAverage |
| Dimensions |
L 1.595 in W 0.787 in H 1.043 in L 40.5 mm W 20.0 mm H 26.5 mm |
| Case Material | Aluminum |
| Drivetrain | |
| Motor Type | Coreless |
| Gears | Steel |
| Gear Spline/Teeth | 25 T estimate |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Rotational Range | 100° |
| Pulse Cycle | 3.003 ms |
| Pulse Width | 900-2100 µs |
| Neutral Position | 1500 µs |
| Refresh Rate | 333 Hz |
| Angle Sensor | Potentiometer |
| Control System | PWM |
| Programmable | Yes |
| Signal Voltage | 3.3–5V |
| Electrical & Environment | |
| Operating Voltage | 4.8–7.4 V |
| Temperature | -10–65 °C14–149 °F |
| Connectivity | |
| Connector | JR (Universal) estimate |
| Wire Length | 205 mm8.07 in |
| 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
| Torque | Below Average Stronger than 29% of 186 Digital Low Profile servos at 4.8V |
| Speed | Average Faster than 50% of 183 Digital Low Profile servos at 4.8V |
| Weight | Average Lighter than 37% of 304 Digital Low Profile servos |
Performance Analysis
| Shaft Power | 2.18–4.69 W |
| Power Density | 3.584 W/in³ More power-dense than 51% of 273 Digital Low Profile servos |
| Torque Density | 2.1451 oz-in/g Stronger than 18% of 185 Digital Low Profile servos |
| Torque-to-Volume Ratio | 90.10 oz-in/in³ Denser torque than 32% of 186 Digital Low Profile servos |
| Speed-to-Weight | 0.18182 (1/sec·g) Faster than 40% of 182 Digital Low Profile servos |
| Speed-Torque Trade-off | 11.80 Better balanced than 37% of 183 Digital Low Profile servos |
| Torque Gain per Volt | 19.46%/V More voltage-responsive (torque) than 74% of 164 Digital Low Profile servos |
| Speed Gain per Volt | 16.48%/V More voltage-responsive (speed) than 62% of 163 Digital Low Profile servos |
| Voltage Range Width | 2.6 V Wider voltage range than 56% of 276 Digital Low Profile servos |
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