The N20 Gear Motor is a high-speed, miniature DC motor integrated with a precision metal gearbox. The 12V 1200RPM variant is the highest speed option in the N20 family, designed for applications where velocity and rapid actuation are the absolute priority. Its extremely compact size and all-metal construction make it a favourite for high-performance micro-robotics and specialized industrial mechanisms.

Specifications

• Rated Voltage: 12V DC (Operating range: 6V – 14V).
• No-Load Speed: 1200 RPM (at 12V).
• Shaft Type: D-shape (flat side to ensure a secure, non-slip fit).
• Shaft Diameter: 3mm.
• Shaft Length: 10mm.
• Gearbox: Full Metal (Brass and steel alloy gears).
• No-Load Current: ~ 65mA.
• Stall Current: ~ 1.3A – 1.5A (at 12V).
• Stall Torque: ~ 0.15 kgcm to 0.3 kgcm (Velocity-focused).

Features

• Maximum Speed Profile: At 1200 RPM, this motor offers the fastest rotation available in this form factor, ideal for high-velocity micro-rovers and racing projects.
• Precision Metal Gearing: Even at ultra-high speeds, the all-metal gear train ensures high wear resistance and prevents the "stripping" common in plastic gearboxes.
• Ultra-Compact Size: The standard N20 footprint allows it to fit into extremely tight spaces, including inside small tubes or hollow 3D-printed parts.
• Responsive Control: The high-speed windings allow for nearly instantaneous acceleration, making it highly suitable for applications requiring rapid-fire mechanical movement.

Pin and Connection Guide

• Terminals: Two small solder tabs at the rear.
• Polarity: The motor is fully reversible. Swapping the VCC and GND wires will change the rotation direction.
• Speed Control: Works exceptionally well with PWM (Pulse Width Modulation) motor drivers for smooth speed adjustments.

Common Applications

• Racing Micro-Robots: High-speed line followers and competitive "Mini-Sumo" or "Ant-weight" combat robots.
• High-Speed Actuators: Rapid trigger mechanisms for automated dispensers or toy launchers.
• Consumer Electronics: Fast-moving parts in cameras, smart locks, or high-end motorized toys.
• Scientific Tools: Driving miniature high-speed stirrers or centrifugal mixers in portable lab equipment.

Usage Tips

• Current Handling: Due to the high stall current (up to 1.5A), ensure your motor driver (like the TB6612FNG or DRV8833) is capable of handling these peaks to avoid overheating.
• Inertia Management: Because the motor spins so rapidly, sudden direction changes or stops can place immense stress on the tiny gears. Implementing a "soft start/stop" in your code is highly recommended.
• Mounting: Always use a dedicated metal N20 mounting bracket. Secure mounting is critical at 1200 RPM to prevent vibrations from loosening the assembly.
• Heat Dissipation: In continuous high-load use, the motor can get warm. Ensure there is some airflow or a metal mounting surface to help sink the heat.