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Technical Specifications
Last Updated: 2026-09-24
|
Identity
Performance
Physical
Drivetrain
Control & Signal
Electrical & Environment
Connectivity
Origin
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Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | NSD-RS20 |
| Category | Hobby |
| Discontinued | Yes |
| Performance | |
| Torque |
8.4V
2,157.00 oz-in
155.32 kg-cm
15.2 N-m
7.4V
1,944.00 oz-in
139.98 kg-cm
13.7 N-m
6.0V
1,610.00 oz-in
115.93 kg-cm
11.4 N-m
|
| Speed |
8.4V
0.10 sec/60°
600.0 deg/s
100.0 RPM
7.4V
0.12 sec/60°
500.0 deg/s
83.3 RPM
6.0V
0.14 sec/60°
428.6 deg/s
71.4 RPM
|
| Running Current |
8.4V
1.280 A
1,280 mA
7.4V
1.100 A
1,100 mA
6.0V
0.970 A
970 mA
|
| Stall Current | 8.6–12.3 A8600–12300 mA |
| Physical | |
| Weight | 10.16 oz288.0 g |
| Dimensions |
L 2.54 in W 1.18 in H 2.24 in L 64.5 mm W 30.0 mm H 57.0 mm |
| Case Material | Aluminum |
| Drivetrain | |
| Motor Type | Brushless |
| Motor Drive | (add) |
| Gears | Steel |
| Gear Spline/Teeth | 15 T |
| Shaft Size | 7.5 mm |
| Rotation Mode | Positional |
| Rotation/Support | Dual Bearings |
| Backlash | (add) |
| Control & Signal | |
| Modulation | Digital |
| Direction | (add) |
| Rotational Range | 180° |
| Mechanical Limit | (add) |
| Pulse Cycle | 3 ms |
| Pulse Width | (add) |
| Neutral Position | 1500 µs |
| Dead Band | 2 µs |
| Refresh Rate | 330 Hz |
| Angle Sensor | Potentiometer |
| Control System | (add) |
| Programmable | (add) |
| Signal Voltage | (add) |
| Electrical & Environment | |
| Operating Voltage | 5–8.4 V |
| Power Source | External |
| Regulator Type | BEC |
| Temperature | -10–50 °C14–122 °F |
| Water Rating | IP67 |
| Certification | (add) |
| Idle Current | (add) |
| Connectivity | |
| Connector | (add) |
| Wire Length | 260 mm10.24 in |
| Origin | |
| Country of Origin | USA |
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.
Performance Analysis
| Shaft Power | 21.26–39.88 W |
| Torque Density | 5.5903 oz-in/g |
| Torque-to-Volume Ratio | 239.27 oz-in/in³ |
| Power Density | 5.927 W/in³ 4th-highest power density of 108 Digital Giant servos |
| Speed-to-Weight | 0.02480 (1/sec·g) |
| Speed-Torque Trade-off | 225.39 |
| Current-per-Torque Ratio | 0.0076 A/oz-in |
| No-Load vs Stall Current Spread | 12.68 |
| Voltage Range Width | 3.4 V Wider voltage range than 47% of the 155 Digital Giant servos in the database |
Notes
This servo requires a 10 amp or greater BEC.
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