Discover XQ-Power Servos in Our eBay Store!
Shop Now
Technical Specifications
Last Updated: 2026-10-22
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | RDS3218 |
| Category | Robotics |
| Performance | |
| Torque |
6.8V
298.49 oz-in
21.49 kg-cm
2.1 N-m
5.0V
263.91 oz-in
19.00 kg-cm
1.9 N-m
|
| Speed |
6.8V
0.17 sec/60°
352.9 deg/s
58.8 RPM
5.0V
0.20 sec/60°
300.0 deg/s
50.0 RPM
|
| Running Current |
6.8V
5.000 A
5,000 mA
5.0V
4.000 A
4,000 mA
|
| Stall Current | 1.6–2.5 A1600–2500 mAAbove Average |
| Physical | |
| Weight | 2.12 oz60.0 gAverage |
| Shape | Boxed |
| Dimensions |
L 1.57 in W 0.79 in H 1.59 in L 39.9 mm W 20.1 mm H 40.4 mm |
| Case Material | Aluminum |
| Drivetrain | |
| Motor Type | 3-pole |
| Gears | Copper / Aluminum |
| Gear Ratio | 342:1 |
| Gear Spline/Teeth | 25 T |
| Rotation Mode | Positional |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Direction | Counterclockwise |
| Rotational Range | 270° |
| Pulse Width | 500-2500 µs |
| Neutral Position | 1500 µs |
| Dead Band | 3 µs |
| Refresh Rate | 333 Hz |
| Control System | PWM |
| Programmable | No |
| Electrical & Environment | |
| Operating Voltage | 4.8–6.8 V |
| Temperature | -15–70 °C5–158 °F |
| Water Rating | IP66 |
| Certification | CE |
| Idle Current | 0.005 A5 mA |
| Connectivity | |
| Connector | JR (Universal) |
| Wire Length | 300 mm11.81 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
| Weight | Average Lighter than 59% of 1898 Digital Standard servos |
| Stall Current | Above Average Lower draw than 74% of 550 Digital Standard servos |
Performance Analysis
| Shaft Power | 2.44–3.25 W |
| Power Density | 1.646 W/in³ More power-dense than 36% of 1766 Digital Standard servos |
| Torque Density | 4.3985 oz-in/g |
| Torque-to-Volume Ratio | 133.82 oz-in/in³ |
| Speed-to-Weight | 0.08333 (1/sec·g) |
| Speed-Torque Trade-off | 52.78 |
| Current-per-Torque Ratio | 0.0095 A/oz-in |
| Idle-to-Running Current Ratio | 0.001 |
| No-Load vs Stall Current Spread | 0.63 |
| Voltage Range Width | 2.0 V Wider voltage range than 40% of 1551 Digital Standard servos |
| Dead-Band-to-Pulse-Width Ratio | 0.0015 Finer dead band than 49% of 482 Digital Standard servos |
Similar Active Servos
Reviews of DSServo RDS3218
Be the first to review!