Futaba S-C300 Standard Digital Servo 9.6kg 0.12s RC Servo FUT05102734-3

Overview

The Futaba S-C300 Standard Digital Servo is a precision-engineered control solution designed for RC car enthusiasts across the UK who demand reliable, responsive servo performance. Whether you're piloting a competitive touring car, a drift machine, or a versatile all-purpose RC vehicle, this standard-size digital servo delivers the speed and torque needed for smooth, accurate steering and throttle control. With support for both PWM and S.BUS2 protocols, the S-C300 integrates seamlessly with modern RC radio systems, making it an ideal choice for hobbyists upgrading from basic servos or those building their first serious RC car UK setup.

Futaba has been leading the way in radio control since 1962, and the S-C300 represents their commitment to delivering affordable quality without compromise. At just 43 grams and measuring a compact 40 × 20 × 38.1mm, this servo combines lightweight construction with substantial performance capabilities. The digital servo technology provides superior accuracy and consistency compared to analogue alternatives, giving you the precision control that competitive RC car enthusiasts and weekend bashers alike appreciate. With an operating voltage range of 4.8V to 7.4V, the S-C300 works with standard battery configurations used across the ready to run RC and custom-built RC car UK market.

The S-C300 distinguishes itself through its advanced engineering: all-metal gearing with a 2-3 stage construction ensures durability through extended use, whilst the aluminium final gear contributes to efficient power transmission and longevity. This is a servo built for real-world RC driving, whether you're honing your skills on track, bashing through off-road terrain, or practising precision manoeuvres. The inclusion of horns and mounting hardware means you can get straight to installation, and the support for multiple control protocols makes it compatible with virtually any modern RC radio system on the market today.

Key Features

• PWM and S.BUS2 Control Support — The S-C300 accepts both traditional PWM (Pulse Width Modulation) and the advanced S.BUS2 digital protocol, ensuring compatibility with the widest range of RC radio systems available, from budget-friendly to professional-grade equipment. This dual-protocol flexibility means you're not locked into one manufacturer's ecosystem and can upgrade your radio system in the future without needing to replace your servos.
• 9.6kgf cm Maximum Torque at 7.4V — Delivering genuine stopping power, the S-C300 produces 9.6kgf cm of torque when powered at 7.4V (LiPo battery voltage), with 8.0kgf cm available at 6.0V. This torque rating provides excellent steering response and secure throttle control across diverse RC driving scenarios, from smooth on-road driving to responsive off-road control.
• Rapid 0.12 Second Response Time — With a transit speed of just 0.12 seconds per 60 degrees at 7.4V (0.14 seconds at 6.0V), the S-C300 responds instantly to your radio inputs, ensuring your steering commands are executed with minimal delay. This fast response time is crucial for competitive driving where precision timing can determine race outcomes.
• Digital Servo Technology — Unlike analogue servos, the S-C300's digital circuitry samples control inputs at a higher frequency, resulting in superior accuracy, better centering, reduced dead-band, and improved holding force. Digital servos maintain their commanded position more precisely, especially important for steering trim and fine throttle control in RC cars.
• All-Metal Gear Construction — The S-C300 features robust metal gearing with a 2-3 stage configuration and an aluminium final gear, providing exceptional durability and efficient power transmission. Metal gears resist stripping under load far better than plastic alternatives, extending your servo's operational lifespan through countless driving sessions.
• Standard Spline Compatibility — Equipped with a 25-tooth (Ø6mm) metal spline, the S-C300 accepts standard servo horns and arms, providing excellent compatibility with the majority of RC car components currently available in the UK market. This universal compatibility simplifies parts sourcing and allows easy servo swaps without custom modifications.
• Lightweight Compact Design — Weighing just 43 grams and measuring 40.0 × 20.0 × 38.1mm, the S-C300 adds minimal weight to your RC car whilst maintaining a small footprint that fits standard servo bays. Weight savings are particularly valuable in competitive RC racing where every gram affects acceleration, deceleration, and handling characteristics.
• Wide Operating Voltage Range — Functioning reliably across 4.8V to 7.4V allows you to use the S-C300 with both 2S LiPo batteries (nominal 7.4V) and 2S NiMH packs (nominal 4.8V), providing flexibility in your power system choices. The servo maintains consistent performance throughout this voltage range, though you'll notice improved torque and speed at the higher 7.4V end of the spectrum.

Technical Performance

The Futaba S-C300 represents a sophisticated balance between performance and practicality, engineered specifically for the demands of modern RC car UK usage. The servo's digital architecture delivers measurably superior performance to conventional analogue servos: it samples control input signals at high frequency, enabling more precise position holding and faster response to steering and throttle adjustments. The 9.6kgf cm torque specification at 7.4V provides ample force for commanding secure steering input even under load, whilst the 0.12-second per 60-degree transit time ensures your steering inputs translate to vehicle movement without perceptible lag. At 6.0V operation, you'll still receive 8.0kgf cm of torque and 0.14-second response time, making the servo suitable for both full-power LiPo setups and moderate-power NiMH battery configurations. The metal gearing system, featuring a sophisticated 2-3 stage arrangement with an aluminium final gear, distributes forces efficiently throughout the drivetrain, minimising backlash and wear. This engineering approach extends servo lifespan significantly compared to plastic-geared alternatives, particularly important when operating continuously during practice sessions or competitive events. The compact 40 × 20 × 38.1mm dimensions and 43-gram weight make the S-C300 suitable for weight-sensitive applications where every gramme contributes to performance, yet the all-metal construction ensures it won't feel fragile or lightweight in the hand. The dual-protocol support for both PWM and S.BUS2 represents genuine forward compatibility: S.BUS2 offers advantages in multi-servo systems by allowing multiple servos to communicate through a single signal wire, reducing wiring complexity whilst providing telemetry feedback capability. Whether you're building a high-precision competitive RC car, setting up a ready to run RC chassis with upgraded components, or maintaining an existing fleet of vehicles, the S-C300's combination of proven Futaba reliability, digital precision, and metal gear durability makes it a logical choice for serious RC enthusiasts.

What's in the Box

• 1x Futaba S-C300 Standard Digital Servo
• Servo horns (multiple options for different linkage configurations)
• Mounting hardware (screws and fasteners for secure installation)

Frequently Asked Questions

• Is the Futaba S-C300 suitable for my RC car UK setup? — Yes, the S-C300 is designed as a standard-size servo compatible with the vast majority of RC cars currently available, including touring cars, drift cars, buggies, and trucks. It accepts both PWM and S.BUS2 control signals, working with any modern RC radio system. If your vehicle currently has a standard servo bay, the S-C300 will fit directly with its compact 40 × 20 × 38.1mm dimensions.
• What's the difference between digital and analogue servos? — Digital servos like the S-C300 sample control input signals at much higher frequencies than analogue servos, resulting in superior accuracy, faster response times, better centering, and reduced dead-band. Digital servos hold their commanded position more precisely and respond faster to control input changes, making them the preferred choice for competitive driving and demanding applications. The S-C300's 0.12-second response time is substantially faster than typical analogue servo performance.
• What battery voltage should I use with the S-C300? — The S-C300 operates across a 4.8V to 7.4V range, making it compatible with 2S LiPo batteries (nominal 7.4V fully charged, dropping to 6.0V during use) or 2S NiMH battery packs (nominal 4.8V). Performance improves at higher voltages: at 7.4V you'll achieve the full 9.6kgf cm torque and 0.12-second response time, whilst at 6.0V you'll receive 8.0kgf cm torque and 0.14-second response. Most RC enthusiasts prefer LiPo batteries for superior performance, but the S-C300 remains fully functional across the entire specified range.
• How do PWM and S.BUS2 protocols differ? — PWM (Pulse Width Modulation) is the traditional servo control method used by most RC radio systems: a single wire carries a signal pulse whose duration determines the servo position, with separate wires required for each servo. S.BUS2 is a digital protocol that allows multiple servos to communicate through a single serial wire, reducing wiring complexity in complex setups. The S-C300's support for both protocols means you can use it with any radio system, whether you have a simple single-servo setup or a complex multi-servo configuration.
• Is this servo good for beginners? — Absolutely. The S-C300 combines affordability with quality construction and straightforward installation, making it excellent for beginners upgrading from basic servos or building their first custom RC car. The inclusion of mounting hardware and servo horns means no additional components are required for installation. Its reliability and predictable performance help new pilots develop smooth control technique without frustration from servo lag or inaccuracy.
• What's the advantage of metal gearing? — The S-C300's all-metal gear construction with aluminium final gear resists stripping far better than plastic gears, particularly important when you're learning and may occasionally cause unexpected servo loading through steering linkage impacts or crash events. Metal gears transmit power more efficiently, contributing to the servo's fast response time and strong torque delivery. Whilst metal-geared servos cost more initially, they last substantially longer through regular use.
• Can I use the S-C300 in wet conditions? — Futaba does not publish specific waterproof ratings for the S-C300, so it should be treated as water-resistant rather than fully waterproof. Occasional light water exposure is generally acceptable in RC off-road driving, but avoid submersion or prolonged water spray. For serious water-based use, fully sealed servo options exist, but the S-C300 performs well in typical UK off-road environments including wet grass and mud.
• How long will the servo last? — With proper care, the S-C300's all-metal construction and digital circuitry should provide years of reliable service. The metal gears and robust design mean wear develops slowly even with regular use. Key longevity factors include avoiding extreme servo loadings, protecting from water ingress, and using appropriate battery voltages within the 4.8V-7.4V specification. Futaba servos are recognised for long-term reliability across the global RC community.

Why Buy from RC Model Shop?

RC Model Shop is a trusted UK RC retailer and authorised dealer for all the brands we stock, including Traxxas, ARRMA, Losi, FTX, Hobbywing, Spektrum and more. Based in Walsall, we have a physical store where customers are welcome to come in, view products and purchase in store. Whether you are a seasoned competitor, a weekend basher, or just discovering the world of RC for the first time, our team of experienced RC enthusiasts is here to help you find the perfect setup and provide ongoing support. Order the Futaba S-C300 Standard Digital Servo PWM/S.BUS2 9.6kg 0.12s 4.8V - 7.4V FUT05102734-3 today with confidence, knowing you are buying from an authorised retailer with genuine products, expert knowledge and a commitment to customer satisfaction. Shop online or visit us in Walsall — we look forward to helping you get the most out of your RC experience.