Futaba S-U301 Standard Digital Servo PWM/S.Bus2 3.9kg/0.16s 4.8V - 8.4V (Bulk 10pcs)

The Futaba S-U301 is a standard-size digital airplane servo with PWM and S.Bus2 capability, supplied here as a bulk 10-piece pack (part number FUT05102684-1-B). Featuring plastic gears, a 6 mm/25T output spline and a smooth 3‑pole cored motor, it offers dependable performance across a wide 4.8–8.4 V operating range. Compact and lightweight at 40 x 20 x 36.1 mm and 36 g per servo, it provides up to 3.9 kgf·cm torque with 0.16 s/60° transit at 7.4 V.

Key Features

• PWM and S.Bus2 capable standard digital airplane servo
• Torque: 3.9 kgf·cm (7.4 V) / 3.5 kgf·cm (6.6 V)
• Speed: 0.16 s/60° (7.4 V) / 0.18 s/60° (6.6 V)
• Plastic gears with 6 mm / 25T output spline
• 3‑pole cored motor
• Operating range: 4.8–8.4 V

What's In The Box

• 10x S-U301 Standard Digital Servo
• Horns
• Mounting hardware

Technical Specifications

• Dimensions: 40 x 20 x 36.1 mm (1.59 x 0.79 x 1.42 in)
• Weight (each): 36 g (1.30 oz)
• Torque: 3.5 kgf·cm / 48.6 ozf·in (6.6 V); 3.9 kgf·cm / 54.2 ozf·in (7.4 V)
• Transit speed: 0.18 s/60° (6.6 V); 0.16 s/60° (7.4 V)
• Spline: 6 mm / 25T
• Motor: 3‑pole cored
• Gearing: Plastic
• Servo size: Standard
• Colour: Black
• Age recommendation: 14+
• Shipping weight (pack): 0.49 kg (1.09 lb)