Feetech ST-3025-C001 12V 20kg.cm Brushless Steel Gear TTL Servo

The Feetech ST-3025-C001 is a fast 12V smart servo that pairs a brushless motor with a steel gearbox in a full aluminium case. At 170 RPM no-load it suits robot joints, pan/tilt heads and automated mechanisms that need quick, accurately positioned moves with live feedback over the TTL serial bus.

Key features

• Brushless motor, steel gears and ball bearings for repeated, high-duty operation

• 12-bit magnetic encoder: 4096 positions over 360°, no angle limit

• Three modes: 0-360° position control, continuous multi-turn rotation and step mode

• Configurable acceleration for smooth starts and stops

• Feedback of position, speed, voltage, current, temperature and load, with overload and over-current protection

• Bus IDs 0-253 and 38,400 bps to 1 Mbps baud for long multi-servo chains

Specifications

• Operating voltage: 12V

• Peak stall torque: 20kg.cm at 12V

• Rated torque: 6.5kg.cm at 12V

• No-load speed: 0.059 s/60° (170 RPM) at 12V

• Current: 380mA no-load, 4.4A stall at 12V

• Interface: half-duplex asynchronous serial (TTL), digital packet

• Horn spline: 25T, 5.9mm OD

• Lead length: 150mm

• Dimensions: 40 x 20 x 40mm

• Weight: 89g (±1g)

• Operating temperature: -20 to 60°C

Run it from a regulated 12V supply and budget up to 4.4A per servo at stall when several share one bus. A half-duplex TTL bus adapter or a suitably wired microcontroller UART handles command and feedback.