Servo Specs, Reviews, & Comparison Tool
Blue Arrow D03012 - Digital Ultra-Micro Precision 3.3V Servo
Specifications
| Last Updated: | 2025-08-04 |
| Modulation: | Digital |
| Torque: |
3.3V: 3.47 oz-in (0.25 kg-cm) 4.2V: 4.17 oz-in (0.30 kg-cm) |
| Speed: |
3.3V: 0.11 sec/60° 4.2V: 0.08 sec/60° |
| Weight: | 0.11 oz (3.2 g) |
| Dimensions: |
Length:0.77 in (19.6 mm) Width:0.33 in (8.4 mm) Height:0.86 in (21.8 mm) |
| Motor Type: | Coreless |
| Gear Type: | Plastic |
| Rotation/Support: | Bushing |
| Rotational Range: | (add) |
| Pulse Cycle: | (add) |
| Pulse Width: | (add) |
| Connector Type: | JST 1.5mm |
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Notes
- The discontinued Blue Arrow D03012 is a powerhouse in the digital micro servo category, celebrated for its impressive power-to-weight ratio. While tipping the scales at just a few grams, it delivers a level of strength and holding power that belies its diminutive size. Intended for use with a one-cell 3.7V Li battery, this makes it the go-to servo for pilots flying aggressive indoor 3D models or high-performance micro helicopters that place extreme demands on their control systems. On a 3D aircraft performing violent tumbles and snaps, the aerodynamic forces on the control surfaces can be surprisingly high. The D03012 has the muscle to push through these forces, ensuring that large control surface deflections are achieved quickly and held firmly. Similarly, for the cyclic controls of a micro helicopter, this servo provides the authority needed for crisp, authoritative pitch changes.
- The core of its character is strength. While other servos in its class might prioritize speed or low weight above all else, the D03012 is engineered for brute force in a small package. Hobbyists choose this servo when they need to be certain that their control linkages will not yield under pressure. This provides a very solid and connected feel in flight, inspiring the confidence to fly harder and explore more challenging maneuvers without worrying about the servo's limitations.
- In the world of robotics, this strength is an incredibly valuable asset. The D03012 is an excellent choice for building small robotic grippers that need to apply a firm, reliable clamping force. It's also well-suited for the leg joints of a slightly heavier micro-robot that needs the power to lift its own body weight with ease. Any application where a lightweight actuator is required to move a component that faces physical resistance or must bear a load will find a perfect solution in the D03012.
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