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Technical Specifications
Last Updated: 2026-09-13
|
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 | STS3215 |
| Category | Robotics |
| Performance | |
| Torque |
12.0V
486.06 oz-in
35.00 kg-cm
3.4 N-m
6.0V
270.86 oz-in
19.50 kg-cm
1.9 N-m
|
| Speed |
12.0V
0.02 sec/60°
2,727.3 deg/s
454.5 RPM
6.0V
0.24 sec/60°
250.0 deg/s
41.7 RPM
|
| Running Current |
12.0V0.180 A180 mA |
| Stall Current | 2–2.7 A2000–2700 mA |
| Rated Output Power | (add) |
| Radial Load | (add) |
| Physical | |
| Weight | 1.94 oz55.0 g |
| Shape | Boxed |
| Dimensions |
L 1.78 in W 0.97 in H 1.38 in L 45.2 mm W 24.7 mm H 35.0 mm |
| Case Material | Plastic |
| Drivetrain | |
| Motor Type | Coreless |
| Motor Drive | (add) |
| Gears | Metal |
| Gear Ratio | 345:1 |
| Gear Spline/Teeth | 25 T |
| Shaft Size | 5.9 mm |
| Rotation Mode | Continuous |
| Rotation/Support | Single Bearing |
| Backlash | 0.870° |
| Control & Signal | |
| Modulation | Digital |
| Direction | Clockwise |
| Rotational Range | 360° |
| Mechanical Limit | No Limit |
| Pulse Cycle | (add) |
| Pulse Width | (add) |
| Neutral Position | (add) |
| Dead Band | (add) |
| Refresh Rate | (add) |
| Angle Sensor | Magnetic Encoder |
| Control System | Serial-PID |
| Programmable | Yes |
| Resolution | 4,096 pulse/rev |
| MCU | (add) |
| Operating Modes | Position, Velocity, Step |
| Signal Voltage | 2-5V |
| Electrical & Environment | |
| Operating Voltage | 4–14 V |
| Power Source | (add) |
| Regulator Type | (add) |
| Temperature | -20–60 °C-4–140 °F |
| Water Rating | Not Rated |
| Certification | RoHS |
| Idle Current | 0.030 A30 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.
Performance Analysis
| Shaft Power | 2.09–40.85 W |
| Torque Density | 4.9247 oz-in/g |
| Torque-to-Volume Ratio | 113.61 oz-in/in³ |
| Power Density | 17.134 W/in³ 5th-highest power density of 1644 Digital Standard servos |
| Speed-to-Weight | 0.07576 (1/sec·g) |
| Speed-Torque Trade-off | 65.01 |
| Current-per-Torque Ratio | 0.0100 A/oz-in |
| Idle-to-Running Current Ratio | 0.167 |
| No-Load vs Stall Current Spread | 15.00 |
| Voltage Range Width | 10.0 V Wider voltage range than 100% of the 1269 Digital Standard servos in the database |
| Backlash-to-Range Ratio | 0.00242 Tighter backlash than 63% of the 71 Robotics servos in the database |
Notes
Feetech sells the STS3215 under multiple sub-model codes (C001 for 7.4V/19kg, C018 and C047 for 12V/30kg) sharing identical mechanical housings but different metal gear materials.
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