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Technical Specifications
Last Updated: 2026-10-08
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | ST3215-HS Servo Motor |
| Category | Robotics |
| Performance | |
| Torque |
12.0V277.75 oz-in20.00 kg-cm2.0 N-m |
| Speed |
12.0V0.09 sec/60°638.3 deg/s106.4 RPM |
| Stall Current | ≤2.4 A≤2400 mAAbove Average |
| Physical | |
| Weight | 2.40 oz68.0 gAverage |
| Shape | Boxed |
| Dimensions |
L 1.78 in W 0.973 in H 1.378 in L 45.2 mm W 24.7 mm H 35.0 mm |
| Case Material | Plastic |
| Drivetrain | |
| Motor Type | Brushed |
| Gears | Metal / Steel |
| Rotation Mode | Multi-turn |
| Control & Signal | |
| Modulation | Digital |
| Rotational Range | 360° |
| Mechanical Limit | No Limit |
| Angle Sensor | Magnetic Encoder |
| Control System | TTL |
| Programmable | Yes |
| Resolution | 4,096 pulse/rev |
| Operating Modes | Position, Velocity, Step |
| Electrical & Environment | |
| Operating Voltage | 6–12.6 V |
| Idle Current | 240.000 A240,000 mA |
| Connectivity | |
| Baud Rate | 38.4 Kbps–1 Mbps |
| 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 37% of 1902 Digital Standard servos |
| Stall Current | Above Average Lower draw than 79% of 539 Digital Standard servos |
Performance Analysis
| Torque Density | 4.0845 oz-in/g |
| Torque-to-Volume Ratio | 116.38 oz-in/in³ |
| Speed-to-Weight | 0.15645 (1/sec·g) |
| Speed-Torque Trade-off | 26.11 |
| Current-per-Torque Ratio | 0.0086 A/oz-in |
| Voltage Range Width | 6.6 V Wider voltage range than 99% of 1539 Digital Standard servos |
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