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Technical Specifications
Last Updated: 2026-10-22
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | DS3218 |
| Category | Hobby |
| Performance | |
| Torque |
6.8V
298.58 oz-in
21.50 kg-cm
2.1 N-m
5.0V
249.97 oz-in
18.00 kg-cm
1.8 N-m
|
| Speed |
6.8V
0.14 sec/60°
428.6 deg/s
71.4 RPM
5.0V
0.16 sec/60°
375.0 deg/s
62.5 RPM
4.8V
0.18 sec/60°
333.3 deg/s
55.6 RPM
Below Average
|
| Running Current |
6.8V
0.005 A
5 mA
4.8V
0.004 A
4 mA
Top 10%
|
| Stall Current | 1.8–2.2 A1800–2200 mAAbove Average |
| Physical | |
| Weight | 2.12 oz60.0 gAverage |
| Dimensions |
L 1.57 in W 0.81 in H 1.59 in L 39.9 mm W 20.6 mm H 40.4 mm |
| Case Material | Aluminum |
| Drivetrain | |
| Motor Type | 3-pole |
| Gears | Aluminum |
| Gear Spline/Teeth | 25 T |
| Rotation Mode | Positional |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Direction | Counterclockwise |
| Rotational Range | 180° |
| Pulse Width | 500-2500 µs |
| Neutral Position | 1500 µs |
| Dead Band | 3 µs |
| Control System | PWM |
| Programmable | No |
| Signal Voltage | 3.3–5V |
| Electrical & Environment | |
| Operating Voltage | 4.8–6.8 V |
| Temperature | -15–70 °C5–158 °F |
| Water Rating | IP66 |
| Connectivity | |
| Connector | JR (Universal) |
| Wire Length | 300 mm11.81 in |
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
| Speed | Below Average Faster than 17% of 1035 Digital Standard servos at 4.8V |
| Weight | Average Lighter than 59% of 1877 Digital Standard servos |
| Running Current | Top 10% Lower draw than 100% of 222 Digital Standard servos at 4.8V |
| Stall Current | Above Average Lower draw than 84% of 565 Digital Standard servos |
Performance Analysis
| Shaft Power | 2.89–3.94 W |
| Power Density | 1.950 W/in³ More power-dense than 43% of 1760 Digital Standard servos |
| Torque Density | 4.1662 oz-in/g |
| Torque-to-Volume Ratio | 123.63 oz-in/in³ |
| Speed-to-Weight | 0.09259 (1/sec·g) Faster than 28% of 1028 Digital Standard servos |
| Speed-Torque Trade-off | 45.00 |
| Current-per-Torque Ratio | 0.0088 A/oz-in |
| No-Load vs Stall Current Spread | 550.00 Narrower current spread than 1% of 176 Digital Standard servos |
| Speed Gain per Volt | 14.30%/V More voltage-responsive (speed) than 44% of 863 Digital Standard servos |
| Voltage Range Width | 2.0 V Wider voltage range than 41% of 1554 Digital Standard servos |
| Dead-Band-to-Pulse-Width Ratio | 0.0015 Finer dead band than 50% of 491 Digital Standard servos |
Notes
This servo comes in 180 or 270 degree rotation versions.
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