SAVOX DIGITAL LOW PROFILE SERVO 7KG / 0.07SEC@6V UPDATED SAV-SC1252MG+

Overview

The Savox Digital Low Profile Servo SAV-SC1252MG+ is a high-speed, compact servo specifically engineered for RC enthusiasts who demand both performance and precision in tight spaces. Whether you're racing a 1/10 on-road touring car, flying an aircraft, or working on any RC project where space is at a premium, this servo delivers exceptional responsiveness and raw power in a remarkably compact footprint. The SC1252MG+ represents the latest evolution in Savox servo technology, combining advanced 12-bit digital resolution with a brushed motor architecture that has been refined through years of professional RC competition experience. UK RC car enthusiasts will appreciate the servo's ability to fit into restrictive steering and suspension geometries without compromising on speed or torque delivery.

What sets this servo apart in the competitive RC market is its perfect balance of lightweight construction, powerful response, and reliability. At just 44.5 grams, the SC1252MG+ won't add unnecessary weight to your RC vehicle, whilst its metal gear train ensures durability even under the harsh demands of competitive driving or aggressive bashing. The updated Plus model designation indicates this servo now features Savox's innovative Soft Start Mode and full Sanwa SSR compatibility, making it an excellent choice for pilots and drivers upgrading their existing setups or building new ready-to-run RC cars from scratch. This is servo design at its best—light, responsive, and powerful all in one package.

Savox servos are recognised worldwide for their versatility and reliability, catering to a wide range of applications from high-speed racing to precision manoeuvres. The SC1252MG+ exemplifies this commitment to excellence, delivering the perfect balance of power, precision, and durability that makes Savox a trusted choice for RC enthusiasts across the United Kingdom and beyond.

Key Features

• High-Speed Digital Performance — Operating at an incredibly fast 0.07 seconds per 60 degrees at 6V, this servo responds instantly to control inputs, giving you the precision steering response required for competitive 1/10 on-road touring cars and demanding RC applications where milliseconds matter in cornering and line adjustment.
• Powerful 7kg Torque Output — Producing 7 kilogrammes of torque at 6V (97.2 ounce-inches), this servo delivers sufficient pulling power to operate even heavy steering loads and suspension geometry without lag or servo horn slippage, ensuring your vehicle responds exactly as you command it.
• Low Profile Compact Design — Measuring only 40.8mm long, 20.2mm wide, and 25.4mm tall, the SC1252MG+ fits into tight spaces where standard-sized servos simply won't fit, making it ideal for modern 1/10 on-road touring cars and other space-constrained RC platforms where every millimetre counts.
• Metal Gear Train Construction — The all-metal gear train ensures exceptional durability under harsh racing conditions and aggressive driving styles, resisting stripped gears and delivering reliable performance through countless hours of competition and recreational use without degradation.
• Aluminium Case for Cooler Operation — The lightweight aluminium housing provides superior heat dissipation compared to plastic cases, keeping internal components cooler during extended racing sessions and preventing performance loss from thermal throttling, extending servo lifespan considerably.
• Advanced 12-Bit Digital Resolution — With 4096 levels of resolution, this servo delivers incredibly smooth, precise movement and eliminating the jerky mid-range movements sometimes found in lower-resolution servos, resulting in buttery-smooth steering and more predictable vehicle handling characteristics.
• Double Ball Bearing Support — The two ball bearings provide smooth, low-friction rotation of the output shaft, reducing mechanical resistance and contributing to the servo's lightning-fast response times whilst minimising wear on the gear train during extended use.
• Soft Start Mode (Plus Model) — The updated SC1252MG+ features Savox's new Soft Start Mode technology, which gradually ramps up servo power to prevent shock-loads on the steering linkage, extending servo lifespan and reducing wear on connected components during initial power application.
• Sanwa SSR Compatibility — Full compatibility with Sanwa SSR systems means this servo integrates seamlessly into existing setups using Sanwa radio receivers and controllers, offering flexibility for drivers already invested in the Sanwa ecosystem or planning multi-servo Sanwa-based installations.
• Lightweight at 44.5 Grams — The extremely low weight minimises the servo's impact on your vehicle's centre of gravity and weight distribution, allowing you to position weight more strategically throughout your RC car's chassis for improved handling characteristics and cornering performance.
• 240Hz Refresh Rate — The rapid 240Hz refresh rate ensures the servo samples control inputs 240 times per second, delivering responsiveness that feels instantaneous and natural, crucial for maintaining precision in competitive on-road racing where steering input frequency is critical.
• 25-Tooth Output Horn Spline — The standard 25-tooth output spline is widely compatible with commercially available servo horns and linkages, giving you flexibility in mechanical setup options and making replacement parts readily available from UK RC retailers.

Technical Performance

The Savox SC1252MG+ represents a masterclass in servo engineering, delivering exceptional performance through a carefully engineered combination of high-speed brushed motor, precision digital servo electronics, and robust mechanical construction. Operating at 6V (the standard voltage for most modern RC equipment), this servo reaches a blindingly fast 0.07 seconds per 60-degree rotation, making it amongst the fastest servos available for compact applications. The 7-kilogramme torque specification at 6V (97.2 ounce-inches) provides ample pulling force for steering linkages, suspension components, and control surfaces on 1/10 scale on-road vehicles, even when directional loads increase during aggressive cornering or emergency manoeuvres. The servo utilises a brushed motor design operating at 240Hz refresh rate, sampling control inputs continuously throughout each second to maintain responsiveness that feels completely natural and instantaneous to the driver.

Build quality is exceptional throughout. The metal gear train withstands the mechanical stresses of competitive racing, whilst the aluminium case provides both lightweight construction and superior thermal management—critical for maintaining consistent performance during the sustained, high-temperature conditions of multi-round racing events. The double ball bearing design minimises friction in the output shaft rotation, contributing directly to both the servo's impressive speed and its efficiency. Weight is kept to just 44.5 grams through careful engineering, allowing you to maintain optimal vehicle balance and weight distribution. The servo's operating temperature range spans from -10°C to 50°C, making it suitable for year-round RC racing in the UK climate, whether you're racing at summer outdoor events or winter indoor carpeted tracks.

Electrical characteristics are well-suited to standard RC vehicle power systems. At 6V with no load, the servo draws 150 milliamps at 4.8V or 180 milliamps at 6.0V during normal operation, whilst idle power draw is just 5 milliamps—efficient enough not to significantly drain your vehicle's battery during standby. Under full load (stall conditions), draw increases to 2000mA at 4.8V or 3000mA at 6.0V, which your vehicle's power distribution system must accommodate. The pulse width range of 950 to 2050 microseconds with 1500 microsecond neutral position provides standard servo signal compatibility with virtually all modern RC receiver systems, whilst the maximum travel capability of approximately 160 degrees at extreme pulse widths (700 to 2300 microseconds) gives advanced users additional setup flexibility.

Specifications

• Model Number: SAV-SC1252MG+
• Manufacturer: Savox
• Servo Type: Digital Low Profile
• Motor Type: Brushed
• Resolution: 12-bit (4096 levels)
• Dimensions (L x W x H): 40.8 x 20.2 x 25.4 millimetres
• Weight: 44.5 grams
• Torque @ 4.8V: 4.5 kilogrammes (62.5 ounce-inches)
• Torque @ 6.0V: 7.0 kilogrammes (97.2 ounce-inches)
• Speed @ 4.8V: 0.08 seconds per 60 degrees
• Speed @ 6.0V: 0.07 seconds per 60 degrees
• Operating Temperature Range: -10°C to 50°C (14°F to 122°F)
• Running Current (No Load) @ 4.8V: 150 milliamps
• Running Current (No Load) @ 6.0V: 180 milliamps
• Idle Current: 5 milliamps at both 4.8V and 6.0V
• Stall Current @ 4.8V: 2000 milliamps
• Stall Current @ 6.0V: 3000 milliamps
• Wire Length: 300 ± 5 millimetres
• Output Gear Spline: 25-tooth
• Bearings: 2 ball bearings (Double Bearing)
• Gear Material: Metal
• Case Material: Aluminium
• Operating Travel: 90 degrees (1000 to 2000 microseconds)
• Neutral Position: 1500 microseconds
• Pulse Width Range: 950 to 2050 microseconds
• Maximum Travel: Approximately 160 degrees (700 to 2300 microseconds)
• Refresh Rate: 240 Hz
• Special Features: Soft Start Mode, Sanwa SSR Compatibility
• Warranty: 1 year manufacturer warranty

What's in the Box

• Savox SC1252MG+ Digital Low Profile Servo
• Standard servo connector with 300mm wire lead

What You Need to Complete

• RC receiver compatible with standard servo pulse signals (PWM)
• 4.8V or 6V power supply (typically from your vehicle's battery/BEC system)
• Servo horn suitable for 25-tooth spline (typically included with your RC vehicle or available separately from RC retailers)
• Mechanical linkages to connect servo horn to your vehicle's steering or control surfaces

Frequently Asked Questions

• Is the Savox SC1252MG+ suitable for beginners? — Yes, this servo is suitable for drivers of all experience levels. However, its high speed and compact size are particularly appreciated by more experienced racers. Beginners will find it reliable and responsive, though they may not fully exploit its competitive-level performance characteristics. The servo requires standard RC knowledge to install correctly but presents no particular challenges for first-time users.
• What battery voltage does this servo need? — The servo operates at both 4.8V and 6V. Most modern RC vehicles use a 5V or 6V regulated power supply from a battery elimination circuit (BEC) integrated into the speed controller, or from a dedicated servo battery. Check your vehicle's power system to determine which voltage you're running, though 6V operation is recommended for maximum torque and speed performance.
• Why is this servo so fast compared to standard servos? — The SC1252MG+ achieves its 0.07-second speed at 6V through several engineering factors: a high-speed brushed motor, advanced 12-bit digital control electronics running at 240Hz refresh rate, efficient metal gear train with minimal friction from ball bearing support, and lightweight construction throughout. These elements combine to deliver response times that feel instantaneous to the driver, crucial in competitive 1/10 on-road racing.
• What makes this servo suitable for 1/10 on-road touring cars? — The low profile compact dimensions (40.8 x 20.2 x 25.4mm) fit into the tight steering compartments of modern 1/10 touring car chassis where standard-sized servos simply won't fit. The lightweight 44.5-gram construction avoids unnecessary weight addition, whilst the high speed and powerful torque are exactly what competitive on-road racing demands. The metal gears and aluminium case withstand the demands of sustained high-speed racing.
• Is this servo waterproof? — The servo is not specifically waterproofed. Whilst the metal gears and aluminium case offer some protection, the servo should not be submerged or deliberately exposed to water. It will tolerate rain and splashes during outdoor racing but is not designed for water-based RC vehicles or submersion conditions.
• What's the difference between the SC1252MG+ and the original SC1252MG? — The updated SC1252MG+ model includes two significant improvements over the original SC1252MG (now discontinued): Soft Start Mode technology that gradually ramps up servo power to reduce mechanical shock loads on linkages and steering components, and full compatibility with Sanwa SSR receiver systems for seamless integration into Sanwa-based RC setups.
• Can I use this servo with my existing RC system? — The SC1252MG+ uses standard servo pulse signals (PWM) with a pulse width range of 950-2050 microseconds. It works with virtually all modern RC receiver systems including Futaba, Spektrum, Sanwa, Hitec and others. The 300mm wire lead includes a standard servo connector, though you may need an adapter if your receiver uses a different connector type.
• How does the 12-bit digital resolution benefit me? — The 12-bit resolution (4096 levels) provides incredibly smooth servo movement with no perceptible steps or jerkiness, particularly noticeable in the mid-range where lower-resolution servos might show hesitation. This translates to more predictable vehicle handling and more precise steering response during the critical mid-corner transitions where most lap time is gained or lost.
• What's the lifespan of this servo? — With proper maintenance and installation, the SC1252MG+ should provide several years of reliable service. The metal gear train and ball bearings are designed for durability, whilst the aluminium case helps keep components cool during extended use. Avoid stalling the servo continuously (which generates excessive heat and current draw) and ensure it has adequate power supply voltage for best longevity.
• Is this servo suitable for aircraft use? — Yes, the servo is suitable for aircraft applications where compact size and light weight are beneficial. The 0.07-second response time and smooth digital operation are appropriate for aircraft control surfaces. Ensure your airframe's BEC system provides adequate current (180mA running current at 6V) to prevent voltage sag during servo operation.

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 SAVOX DIGITAL LOW PROFILE SERVO 7KG / 0.07SEC@6V UPDATED SAV-SC1252MG+ 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.