Futaba S-U300 Digital Standard Airplane Servo, NDAA Compliant
by Futaba

Product Description

The Futaba S-U300 Digital Standard Servo is a reliable, high-utility actuator designed for RC airplanes, sport aircraft, and commercial unmanned aerial systems (sUAS). Built as Futaba's standard go-to digital servo, it integrates S.BUS2 programmable capability alongside conventional PWM receiver compatibility, allowing technicians and pilots to daisy-chain multiple servos or run traditional single-channel wiring setups.

Delivering 4.5 kg/cm of torque and a 0.19 sec/60° transit speed at 6.0V, the S-U300 features durable polymer resin gears housed in a lightweight 36-gram standard-size chassis. Importantly, this servo is fully NDAA Compliant (National Defense Authorization Act), making it an approved, supply-chain-compliant hardware component for government-funded aerospace programs, defense contractors, military sUAS maintenance, and university STEM research labs requiring non-restricted components.

Technical Specifications

• Brand: Futaba

• Model Identifier: S-U300 (FUTM0112)

• Compliance Rating: NDAA Compliant (National Defense Authorization Act)

• Servo Class: Standard Size Digital Servo

• Communication Protocol: S.BUS2 / S.BUS & Standard PWM Compatible

• Operating Speed (6.0V): 0.19 sec / 60°

• Stall Torque (6.0V): 4.5 kg/cm (62.5 oz-in)

• Operating Voltage Range: 4.8V - 6.0V DC

• Gear Train Material: High-Durability Resin Plastic

• Dimensions: 40.4 mm x 19.8 mm x 36.0 mm (1.59" x 0.78" x 1.42")

• Net Weight: 36.0 grams (1.27 oz)

• Connector Type: Standard Futaba 3-Pin / Universal PWM

What Is Included

• (1) Futaba S-U300 Digital Standard Servo

• (1) Servo Arm / Horn Accessory Set

• (1) Mounting Hardware Pack (Rubber Grommets, Brass Eyelets, Wood Screws)