S-U400 - FUTABA S.BUS HI VOLTAGE SERVO .13sec/7.9kg 36g

High-Voltage Performance with Versatility

The Futaba S-U400 is a high-performance digital standard servo designed for high-voltage applications. Operating smoothly in a voltage range of 6.0-7.4V, with a peak tolerance of 8.4V, it offers excellent flexibility for a variety of RC models. Whether paired with an S.BUS/S.BUS2 system or a conventional PWM receiver, the S-U400 delivers reliable performance without compromise.

Speed and Torque for Precision Control

Engineered for both speed and strength, the S-U400 provides a quick 0.14 sec/60° rotation at 6.6V and an even faster 0.13 sec/60° at 7.4V. Coupled with a torque rating of 98.6 oz/in (7.1 kg-cm) at 6.6V and 109.7 oz/in (7.9 kg-cm) at 7.4V, it ensures responsive control and robust force for steering, throttle, or other demanding applications in RC vehicles, aircraft, or boats.

Durable Construction with Smooth Operation

Featuring ball bearings for reduced friction and enhanced smoothness, the S-U400 offers improved efficiency and longevity. Its plastic gear set provides a balance between weight savings and cost-effectiveness while still delivering dependable durability for standard RC applications. The 3-pole core motor ensures consistent operation with minimal noise and vibration.

Compact and Lightweight Design

With dimensions of 40 x 20 x 36.1 mm and a weight of just 1.38 oz, this servo maintains a compact form factor ideal for a wide range of RC setups. Despite its small size, it delivers high torque and fast response, making it suitable for hobbyists who require powerful performance without adding unnecessary weight to their models.

S.BUS2 Programmability for Customization

Fully S.BUS2 compatible, the S-U400 allows advanced users to program parameters such as end points, speed, and center position for maximum customization. This makes it an excellent choice for fine-tuning servo behavior to match specific model requirements, offering both beginner-friendly plug-and-play usability and advanced tuning capabilities for experienced RC enthusiasts.