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Technical Specifications
Last Updated: 2026-09-16
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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 | FUTM0221 |
| Category | Hobby |
| Discontinued | Yes |
| Performance | |
| Torque |
4.8V51.00 oz-in3.67 kg-cm0.4 N-m |
| Speed |
4.8V0.07 sec/60°857.1 deg/s142.9 RPM |
| Running Current | (add) |
| Stall Current | (add) |
| Physical | |
| Weight | 2.01 oz57.0 g |
| Dimensions |
L 1.57 in W 0.79 in H 1.46 in L 39.9 mm W 20.1 mm H 37.1 mm |
| Case Material | Plastic / Aluminum |
| Drivetrain | |
| Motor Type | Coreless |
| Motor Drive | (add) |
| Gears | Metal |
| Gear Spline/Teeth | 25 T estimate |
| Shaft Size | (add) |
| Rotation Mode | Positional |
| Rotation/Support | Dual Bearings |
| Backlash | (add) |
| Control & Signal | |
| Modulation | Digital |
| Direction | (add) |
| Rotational Range | (add) |
| Mechanical Limit | (add) |
| Pulse Cycle | (add) |
| Pulse Width | 560-760 µs |
| Neutral Position | (add) |
| Dead Band | (add) |
| Refresh Rate | (add) |
| Angle Sensor | Potentiometer |
| Control System | PWM |
| Programmable | (add) |
| Signal Voltage | (add) |
| Electrical & Environment | |
| Operating Voltage | 4.8–4.8 V |
| Power Source | (add) |
| Regulator Type | (add) |
| Temperature | (add) |
| Water Rating | Water Resistant |
| Certification | (add) |
| Idle Current | (add) |
| Connectivity | |
| Connector | Futaba J |
| Wire Length | (add) |
| Origin | |
| Country of Origin | (add) |
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 | 1.35 W |
| Torque Density | 0.8947 oz-in/g Stronger than 3% of the 833 Digital Standard servos in the database |
| Torque-to-Volume Ratio | 28.16 oz-in/in³ Denser torque than 4% of the 844 Digital Standard servos in the database |
| Power Density | 0.744 W/in³ More power-dense than 12% of the 1645 Digital Standard servos in the database |
| Speed-to-Weight | 0.25063 (1/sec·g) Faster than 89% of the 822 Digital Standard servos in the database |
| Speed-Torque Trade-off | 3.57 Better balanced than 7% of the 827 Digital Standard servos in the database |
| Voltage Range Width | 0.0 V Wider voltage range than 2% of the 1271 Digital Standard servos in the database |
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