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New 412 Micro Brushless Motor Boosts Lightweight Drone Performance

September 23, 2026

Engineers and hobbyists pushing the limits of miniaturization now have a groundbreaking power solution: the 412-type brushless DC motor. Measuring just 4mm in diameter and 12mm in length, this micro motor delivers exceptional performance while weighing a mere 0.7 grams – setting new standards for compact propulsion systems.

Designed for applications where every milligram matters, the motor combines brushless technology with precision engineering. Its ultra-lightweight construction makes it ideal for micro aerial vehicles, miniature robotics, and scale models where added mass critically impacts performance. Despite its diminutive size, the unit provides reliable thrust without compromising flight time or agility.

Performance metrics reveal remarkable capabilities. Operating at 3.7V, the motor achieves a blistering no-load speed of 43,000 RPM – enabling instantaneous response to control inputs. This high-speed performance proves crucial for micro drones requiring precise maneuvering. Efficiency remains paramount, with an operating current of just 0.07mA during idle conditions, significantly extending battery life in power-constrained applications.

Integration has been simplified with 12cm power leads, allowing flexible connection to control boards. The motor's compact form permits secure mounting using standard adhesives, eliminating complex mounting hardware. Whether affixed to PCBs or model frameworks, installation requires minimal modification to existing designs.

Technical Specifications:

  • Model: 412
  • Rated Voltage: 3.7V DC
  • No-Load Speed: 43,000 RPM
  • Operating Current (No-Load): 0.07mA
  • Dimensions: 4mm diameter × 12mm length
  • Lead Length: 12cm
  • Weight: 0.7g

This micro motor represents more than just a power source – it enables new frontiers in miniature device innovation. From autonomous micro drones to precision robotic systems, the 412 motor provides engineers with previously unattainable power-to-size ratios, opening possibilities for next-generation compact technologies.