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Technical Specifications
Last Updated: 2026-10-23
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | KST-DS315MG |
| Category | Hobby |
| Performance | |
| Torque |
8.4V
66.63 oz-in
4.80 kg-cm
0.5 N-m
7.4V
59.68 oz-in
4.30 kg-cm
0.4 N-m
6.0V
48.58 oz-in
3.50 kg-cm
0.3 N-m
4.8V
38.87 oz-in
2.80 kg-cm
0.3 N-m
Below Average
|
| Speed |
8.4V
0.07 sec/60°
857.1 deg/s
142.9 RPM
7.4V
0.08 sec/60°
750.0 deg/s
125.0 RPM
6.0V
0.09 sec/60°
666.7 deg/s
111.1 RPM
4.8V
0.10 sec/60°
600.0 deg/s
100.0 RPM
Above Average
|
| Physical | |
| Weight | 0.72 oz20.5 gAbove Average |
| Dimensions |
L 0.906 in W 0.472 in H 1.083 in L 23.0 mm W 12.0 mm H 27.5 mm |
| Case Material | Aluminum |
| Drivetrain | |
| Motor Type | Coreless |
| Gears | Steel |
| Gear Spline/Teeth | 25 T |
| Rotation Mode | Positional |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Rotational Range | 140° |
| Pulse Cycle | 3.003 ms |
| Pulse Width | 900-2100 µs |
| Neutral Position | 1520 µs |
| Dead Band | 2 µs |
| Refresh Rate | 333 Hz |
| Angle Sensor | Potentiometer |
| Control System | PWM |
| Programmable | Yes |
| Electrical & Environment | |
| Operating Voltage | 4.8–8.4 V |
| Temperature | -20–65 °C-4–149 °F |
| Connectivity | |
| Connector | JR (Universal) estimate |
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 21% of 290 Digital Mini servos at 4.8V |
| Speed | Above Average Faster than 65% of 293 Digital Mini servos at 4.8V |
| Weight | Above Average Lighter than 72% of 505 Digital Mini servos |
Performance Analysis
| Shaft Power | 0.72–1.76 W |
| Power Density | 3.800 W/in³ More power-dense than 79% of 482 Digital Mini servos |
| Torque Density | 1.8961 oz-in/g Stronger than 30% of 286 Digital Mini servos |
| Torque-to-Volume Ratio | 83.93 oz-in/in³ Denser torque than 54% of 288 Digital Mini servos |
| Speed-to-Weight | 0.48781 (1/sec·g) Faster than 80% of 289 Digital Mini servos |
| Speed-Torque Trade-off | 3.89 Better balanced than 21% of 288 Digital Mini servos |
| Torque Gain per Volt | 19.84%/V More voltage-responsive (torque) than 69% of 257 Digital Mini servos |
| Speed Gain per Volt | 11.90%/V More voltage-responsive (speed) than 25% of 262 Digital Mini servos |
| Voltage Range Width | 3.6 V Wider voltage range than 85% of 405 Digital Mini servos |
| Dead-Band-to-Pulse-Width Ratio | 0.0017 Finer dead band than 46% of 104 Digital Mini servos |
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Reviews (1)
Includes 1 review aggregated from around the web.
There are few reviews for this servo on the web. A helicopter pilot who replaced the stock servos on a T-Rex 450L because of play in the gears says his first impressions of the KST swashplate servos are great.
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