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Technical Specifications
Last Updated: 2026-09-14
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | ST-3250-C001 |
| Category | Robotics |
| Performance | |
| Torque |
12.0V694.50 oz-in50.01 kg-cm4.9 N-m |
| Speed |
12.0V0.13 sec/60°451.1 deg/s75.2 RPM |
| Running Current |
12.0V0.280 A280 mA |
| Stall Current | ≤4.2 A≤4200 mABelow Average |
| Physical | |
| Weight | 2.63 oz74.5 gBelow Average |
| 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 | Aluminum |
| Drivetrain | |
| Motor Type | Coreless |
| Gears | Steel |
| Gear Ratio | 345:1 |
| Gear Spline/Teeth | 25 T |
| Shaft Size | 5.9 mm |
| Rotation Mode | Continuous |
| Rotation/Support | Single Bearing |
| Backlash | 0.500° |
| Control & Signal | |
| Modulation | Digital |
| Direction | Counterclockwise |
| Rotational Range | 180° |
| Mechanical Limit | No Limit |
| Angle Sensor | Magnetic Encoder |
| Control System | TTL / SBUS |
| Programmable | Yes |
| Resolution | 4,096 pulse/rev |
| Operating Modes | Positional, Extended, Velocity |
| Electrical & Environment | |
| Operating Voltage | 6–12 V |
| Temperature | -20–60 °C-4–140 °F |
| Certification | CE | ROHS |
| Idle Current | 0.024 A24 mA |
| Connectivity | |
| Connector | Molex |
| 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 | Below Average Lighter than 21% of 1902 Digital Standard servos |
| Stall Current | Below Average Lower draw than 33% of 539 Digital Standard servos |
Performance Analysis
| Shaft Power | 9.66 W |
| Power Density | 4.046 W/in³ More power-dense than 71% of 1759 Digital Standard servos |
| Torque Density | 9.3222 oz-in/g |
| Torque-to-Volume Ratio | 291.00 oz-in/in³ |
| Speed-to-Weight | 0.10092 (1/sec·g) |
| Speed-Torque Trade-off | 92.37 |
| Current-per-Torque Ratio | 0.0060 A/oz-in |
| Idle-to-Running Current Ratio | 0.086 |
| No-Load vs Stall Current Spread | 15.00 |
| Voltage Range Width | 6.0 V Wider voltage range than 98% of 1539 Digital Standard servos |
| Backlash-to-Range Ratio | 0.00278 Tighter backlash than 68% of 23 Digital Standard servos |
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