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Technical Specifications
Last Updated: 2026-10-08
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | PDI-6221MG |
| Category | Hobby |
| Performance | |
| Torque |
6.0V
282.24 oz-in
20.32 kg-cm
2.0 N-m
4.8V
239.60 oz-in
17.25 kg-cm
1.7 N-m
Average
|
| Speed |
6.0V
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
|
| Physical | |
| Weight | 2.19 oz62.0 gAverage |
| Dimensions |
L 1.59 in W 0.80 in H 1.496 in L 40.4 mm W 20.3 mm H 38.0 mm |
| Drivetrain | |
| Motor Type | Cored |
| Gears | Aluminum |
| Rotation Mode | Positional |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Rotational Range | 120° |
| Pulse Cycle | 3.03 ms |
| Neutral Position | 1520 µs |
| Dead Band | 2 µs |
| Refresh Rate | 330 Hz |
| Electrical & Environment | |
| Operating Voltage | 4.8–6.6 V |
| Connectivity | |
| Connector | JR (Universal) |
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 | Average Stronger than 55% of 1060 Digital Standard servos at 4.8V |
| Speed | Below Average Faster than 19% of 1045 Digital Standard servos at 4.8V |
| Weight | Average Lighter than 52% of 1880 Digital Standard servos |
Performance Analysis
| Shaft Power | 2.46–3.26 W |
| Power Density | 1.714 W/in³ More power-dense than 37% of 1768 Digital Standard servos |
| Torque Density | 3.8645 oz-in/g Stronger than 58% of 1053 Digital Standard servos |
| Torque-to-Volume Ratio | 125.91 oz-in/in³ Denser torque than 55% of 1058 Digital Standard servos |
| Speed-to-Weight | 0.08961 (1/sec·g) Faster than 25% of 1038 Digital Standard servos |
| Speed-Torque Trade-off | 43.13 Better balanced than 69% of 1034 Digital Standard servos |
| Voltage Range Width | 1.8 V Wider voltage range than 39% of 1560 Digital Standard servos |
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Reviews (4)
Includes 4 reviews aggregated from around the web.
There are very few reviews for this servo on the web. One retailer customer gave it 5 stars, and a video reviewer called it impressive for robotics and RC use.
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