Servo Specs, Reviews, & Comparison Tool
Cirrus CS-5.4 - Molecular-HP Micro Servo
Specifications
| Last Updated: | 2025-08-04 |
| Modulation: | (add) |
| Torque: |
4.8V: 11.00 oz-in (0.79 kg-cm) 6.0V: 13.00 oz-in (0.94 kg-cm) |
| Speed: |
4.8V: 0.10 sec/60° 6.0V: 0.08 sec/60° |
| Weight: | 0.19 oz (5.4 g) |
| Dimensions: |
Length:0.78 in (19.8 mm) Width:0.31 in (7.9 mm) Height:0.69 in (17.5 mm) |
| Motor Type: | Coreless |
| Gear Type: | Plastic |
| Rotation/Support: | Bushing |
| Rotational Range: | (add) |
| Pulse Cycle: | (add) |
| Pulse Width: | (add) |
| Connector Type: | (add) |
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Notes
- The discontinued Cirrus CS-5.4 is a versatile and lightweight analog servo that sits comfortably in the pico-to-micro transition class. Weighing in at 5.4 grams, it offers a nice step up in power and presence from the lightest pico servos, making it suitable for a broader range of small electric aircraft. It is a very popular choice for the ailerons on park flyers, the control surfaces of small gliders, and as a capable cyclic servo for many micro helicopters. The CS-5.4 is known for providing a solid, reliable performance, giving pilots a more confident and authoritative control feel without adding excessive weight to their airframe.
- The CS-5.4 has earned a reputation as a dependable, all-around performer in the lightweight category. It strikes a great balance between weight, power, and cost, making it a very popular choice for both scratch-builders and as an upgrade for many ready-to-fly models. Its smooth and predictable operation makes it easy to work with and provides a stable flight experience, which is why it has been a long-time favorite for everyday sport flying with smaller models.
- In the robotics field, the CS-5.4 is a very useful actuator that bridges the gap between the smallest pico servos and the larger 9-gram class. It provides enough power to be used for more functional mechanisms, such as a small gripper that can actually hold objects, or for the legs of a walking robot that needs to support a slightly heavier chassis or battery. It’s an excellent, versatile choice for a wide range of compact robotics projects.
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