DFRobot - 9025MG Metal Gear Servo

This 9g micro digital servo is specifically designed for maker DIY projects, robotics competitions, and micro transmission mechanisms. Compared to standard 9g plastic-gear servos on the market, it features solid copper gears and a coreless motor. This completely eliminates the common issue of stripped plastic gears while significantly improving response speed and control precision. Operating at 6V, it delivers a stable torque of up to 1.5kg.cm. Combined with a high-precision digital circuit, the dead band is reduced to ≤3μs, ensuring highly accurate control.

Equipped with a standard JR connector, the servo is perfectly compatible with a wide range of DFRobot Arduino controllers, microcontrollers, and expansion shields. It is fully plug-and-play with no complex wiring required, making it ideal for space-constrained projects that demand precise control.

Dimension Diagram

• Robust & Durable: Features internal copper gears for an extended lifespan and strong impact resistance, effectively preventing gear stripping even under heavy loads.
• Fast & Precise: Powered by a coreless motor and a digital control chip, offering rapid response, excellent centering accuracy (≤1°), and strong holding torque.
• Wide Compatibility: Supports a broad operating voltage (4.8–6V) and standard 500~2500μs PWM signals, making it a perfect match for major open-source hardware platforms.
• Compact Design: Its small footprint allows for easy integration into various tight and compact structures.

• Joint drives for micro/desktop robotic arms
• Bionic robots (e.g., hexapod spiders, robot dogs)
• Steering and throttle control for RC airplanes and cars
• Smart home DIY projects (e.g., automated doors / windows, linear actuator mechanisms)
• STEM education projects and sensor pan-tilt mechanisms

• Operating Voltage: 4.8-6V DC
• Standby Current: ≤8mA at 6.0V
• No Load Current: ≤150mA at 4.8V; ≤170mA at 6.0V
• No Load Speed: ≤0.13sec/60° at 4.8V; ≤0.11sec/60° at 6.0V
• Rated Torque: ≥0.33kgf·cm at 4.8V; ≥0.37kgf·cm at 6.0V
• Stall Current: ≤700mA at 4.8V; ≤800mA at 6.0V
• Stall Torque*: ≥1.3kgf·cm at 4.8V; ≥1.5kgf·cm at 6.0V
• Rotating Direction: CCW (1000→2000μs)
• Pulse Width Range: 500~2500μs
• Neutral Position: 1500μs
• Operating Travel Angle: 90°±10° (1000~2000μs)
• Mechanical Limit Angle: 210°
• Angle Deviation: ≤1°
• L&R Angle Deviation: ≤5°
• Backlash: ≤1°
• Dead Band Width: ≤3μs
• Operating Temperature Range: -10℃~+50℃; ≤90%RH
• Storage Temperature Range: -20℃~+60℃; ≤90%RH
• Weight: 13.5±0.5g
• Case Material: ABS
• Gear Set Material: Metal gear
• Motor Type: Coreless motor
• Angle Sensor
             Type: Carbon Film Potentiometer
             Angle: 210
             Life: 500,000 Cycles (Min.)
• Connector and Cable
             Type: JR
             Material: PVC
             Length: 245±5mm
             Pin Assignment: Brown (GND); Red (Vcc); Orange (Signal / PWM)
• Horn Type: 40T/Φ4.85mm
• Rocker Arm Screw: PM2.0x5mm Nickel plated, see accessories.
• Communication Interface: PWM
• Current Protection: No
• Clutch Protection: No
• Noise Level: ≤50dBA
• Operating Life Time: Rated load life continuous operation test life ≥120h

• 9025MG Metal Gear Servo   x1