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XQ-Power XQ-S4020D - Waterproof Digital Servo
Specifications
| Last Updated: | 2025-08-16 |
| Modulation: | Digital |
| Torque: |
4.8V: 256.90 oz-in (18.50 kg-cm) 6.0V: 302.80 oz-in (21.80 kg-cm) |
| Speed: |
4.8V: 0.15 sec/60° 6.0V: 0.13 sec/60° |
| Weight: | 1.98 oz (56.0 g) |
| Dimensions: |
Length:1.58 in (40.0 mm) Width:0.79 in (20.0 mm) Height:1.54 in (39.0 mm) |
| Motor Type: | Coreless |
| Gear Type: | Titanium |
| Rotation/Support: | Dual Bearings |
| Rotational Range: | 110° |
| Pulse Cycle: | (add) |
| Pulse Width: | 800-2200 µs |
| Connector Type: | (add) |
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Notes
- The XQ Power XQ-S4020D is a standard-sized digital servo designed to provide robust performance and durability for a demanding range of RC models and robotics applications. It is a workhorse component engineered for scenarios requiring a higher level of torque and power than entry-level servos can provide, making it an ideal upgrade for enthusiasts who need to handle greater loads and more rigorous conditions.
- The key feature of the S4020D is its high torque output, which is the result of its coreless motor and metal gear train. The coreless motor offers a significant boost in performance over a traditional cored motor, providing faster acceleration and a smoother, more responsive feel. This is complemented by the durable metal gears, which are essential for handling the high forces associated with the increased torque. This combination makes the S4020D exceptionally resilient against stripping under load or in a crash, ensuring long-term reliability.
- The servo's robust construction and high-torque capabilities make it particularly well-suited for applications where brute strength is a priority.
- RC Aircraft: An excellent choice for throttle control on larger .40-.90 size glow and gas-powered aircraft, as well as for operating flight surfaces on bigger sport planes, 3D models, or gliders where larger control surfaces and higher airspeeds demand greater torque to prevent flutter.
- RC Surface: A powerful solution for steering and throttle/brake on 1/8 scale buggies, truggies, and monster trucks, providing the force needed to turn large wheels and manage high-speed braking. It is also a common upgrade for 1/10 scale rock crawlers and short course trucks where the high torque is beneficial for navigating rough terrain.
- Robotics: A top-tier component for robotics projects that require significant lifting or manipulation power. It is perfect for driving larger robot joints, operating heavy-duty grippers, or actuating mechanisms on walking robots and articulated arms where its strength and durability are critical for success.
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