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Technical Specifications
Last Updated: 2026-10-21
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 1.378 in H 0.973 in L 45.2 mm W 35.0 mm H 24.7 mm |
| Case Material | Nylon / Fiberglass |
| Drivetrain | |
| Motor Type | Brushed |
| Gears | Copper / 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 | 0.240 A240 mA |
| Connectivity | |
| Connector | JST |
| Wire Length | 150 mm5.91 in |
| 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 38% of 1880 Digital Standard servos |
| Stall Current | Above Average Lower draw than 79% of 570 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 98% of 1560 Digital Standard servos |
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