Engineered as the definitive competition evolution of the X10 series, the KST X10 Mini Pro-A high-voltage digital wing servo pushes power density and response speed to new heights. Dropping weight to an ultralight 20g with a shortened 28mm casing, the Pro-A variant unleashes a commanding 8.0 kgf.cm of stall torque, a lightning-fast 0.08s/60° transit speed at 8.4V, and an expanded 120° total travel angle. Designed for podium-contending F3F slope racers, F3B, F3J, and F5J competition gliders, it delivers razor-sharp surface control and explosive camber changes with near-zero latency.

Key Features

• Pro-Grade Performance Upgrades: Outperforms the standard X10 Mini with higher torque (8.0 kgf.cm vs. 7.5 kgf.cm), faster transit speed (0.08s vs. 0.10s), and a broader 120° factory travel angle.
• Ultralight 20g Form Factor: At just 28mm in body height and 20g, it sheds 3g compared to the X10 Mini and 8g compared to standard 10mm wing servos — dramatically lowering wingtip inertia for razor-fast roll authority.
• 10mm Ultra-Slim Profile: Retains standard 10mm thickness to drop seamlessly into thin competition wing sections without aerodynamic bulging.
• High-Voltage Operation: Native 4.8V–8.4V range supports direct 2S LiPo receiver power — bypassing bulky regulators, simplifying wiring, and delivering maximum voltage efficiency.
• High-Response Coreless DC Motor: Instant start-up, ultra-smooth linear travel, and dead-accurate centering precision under high-speed dynamic loads.
• Hardened Steel Geartrain: Precision-cut steel gears supported by dual ball bearings minimize backlash and withstand heavy landing loads and aggressive flap deployment.
• Anodized CNC Aluminum Casing: Precision-machined alloy case ensures perfect servo bay and IDS frame fitment, rigid geartrain alignment, and rapid thermal dissipation.
• Programmable & Soft Start: Customize endpoints, direction, and soft-start protection via the KST programming tool to safeguard linkages on power-up.

Technical Specifications

• Model: X10 Mini Pro-A Digital Wing Servo
• Application: F3F, F3B, F3J, F5J Competition Gliders, Large-Scale Sailplanes
• Rated Voltage: DC 7.4V
• Voltage Range: DC 4.8V – 8.4V (2S LiPo Direct Drive)
• Motor Type: Coreless DC Motor
• Gear Set Material: Hardened Steel
• Case Material: Anodized CNC Aluminum Alloy
• Bearings: Dual Ball Bearings (2BB)
• Position Sensor: Potentiometer
• Working Frequency: 1520μs / 333Hz
• Default Travel Angle: ±60° (120° Total)
• Operating Temperature: -10°C to +65°C
• Soft Start / Programmability: Yes (Programmable)
• Dimensions: 30.0 × 10.0 × 28.0 mm (±0.2mm)
• Weight: 20g (±10%)

Performance Ratings

• Stall Torque:
  • 4.5 kgf.cm @ 4.8V
  • 6.0 kgf.cm @ 6.0V
  • 7.2 kgf.cm @ 7.4V
  • 8.0 kgf.cm @ 8.4V
• Operating Speed (No-Load):
  • 0.13 sec/60° @ 4.8V
  • 0.11 sec/60° @ 6.0V
  • 0.09 sec/60° @ 7.4V
  • 0.08 sec/60° @ 8.4V

Dimensions & Sizing

Documentation

• X10 Mini Pro Technical Specification