Feetech ST-3250-C002 12V 50kg.cm 1/345 Dual-Axis TTL Serial Servo with Magnetic Encoder

The Feetech ST-3250-C002 (STS3250-C002) is a 12 V TTL serial bus smart servo with a coreless motor, 1/345 steel gear train and dual output shaft in an aluminium case. Its 12-bit magnetic encoder gives 0–360° absolute positioning (4096 steps) and multi-turn continuous rotation, for robot arms, humanoids, quadrupeds and automation rigs.

Key features

• 50 kg.cm peak stall and 16 kg.cm rated torque at 12 V

• 0.133 s/60° no-load speed at 12 V

• Feedback of position, speed, load, voltage, current and temperature

• Acceleration-controlled start/stop, configurable centre position, step mode

• Addressable on a half-duplex bus: IDs 0–253, 38400 bps to 1 Mbps

Specifications

• Operating voltage: 6–12 V

• Stall torque: 50 kg.cm at 12 V

• Rated torque: 16 kg.cm at 12 V (1.4 A)

• Stall current: 4.2 A at 12 V

• No-load current: 280 mA at 12 V

• Gear ratio: 1/345, steel gears, backlash ≤0.5°

• Position range: 360° (0–4096), 0.088° per step, clockwise from 0 to 4096

• Motor: coreless

• Horn spline: 25T, 5.9 mm

• Dimensions: 45.22 × 24.72 × 35 mm

• Lead length: 15 cm

• Weight: 74.5 g

• Operating temperature: -20 to 60 °C

Drive it from a TTL bus servo controller or adapter; it does not accept PWM from an RC receiver. Budget 4.2 A per servo at stall on the 12 V rail.