KST X12-508 Micro Metal Gear HV Digital Servo

Overview:
The KST X12-508 is a premium high-voltage micro digital servo designed for applications where low weight, high torque and exceptional precision are essential. Measuring just 23×12×27.5mm and weighing only 20g, it is ideally suited to F3K, F5J, electric gliders, scale sailplanes, lightweight fixed-wing aircraft and other models where space is limited but performance cannot be compromised.

Powered by a high-efficiency coreless motor and hardened steel gears, the X12-508 delivers outstanding speed and torque across a wide 6.0-8.4V operating range. The robust aluminium alloy case provides excellent rigidity and heat dissipation, while the digital control circuitry ensures accurate centring and smooth, precise control throughout the servo's travel.

Designed for modern HV power systems, the X12-508 offers programmable operation and soft-start functionality, making it an excellent choice for demanding sport and competition aircraft. Its combination of compact dimensions, metal gear train and high-voltage capability makes it a versatile servo for both new builds and performance upgrades.

Features:
- High-voltage digital micro servo.
- Compact size for lightweight aircraft and glider installations.
- Coreless DC motor provides fast, smooth and precise operation.
- Hardened steel gear train for long-term durability.
- CNC-machined aluminium alloy case improves rigidity and heat dissipation.
- Excellent centring accuracy and holding power.
- Programmable operating parameters.
- Soft-start function reduces shock loading during power-up.
- Suitable for direct operation from 2S LiPo/Li-Ion receiver power systems.
- 25T output spline, compatible with a wide range of servo arms.

Specification:
- Model: X12-508 Micro Metal Gear HV Digital Servo
- Operating voltage: 6.0-8.4V
- Rated voltage: 7.4V
- Torque @ 6.0V: 4.2kg/cm
- Torque @ 7.4V: 5.2kg/cm
- Torque @ 8.4V: 6.2kg/cm
- Speed @ 6.0V: 0.09sec/60°
- Speed @ 7.4V: 0.08sec/60°
- Speed @ 8.4V: 0.07sec/60°
- Motor type: Coreless DC
- Servo type: Digital
- Gear material: Hardened steel
- Case material: Aluminium alloy
- Position sensor: Potentiometer
- Working frequency: 1520μs / 20kHz
- Default travel: 100° (±50°)
- Output spline: 25T (5mm)
- Operating temperature: -10°C to +65°C
- Dimensions: 23x12x27.5mm
- Weight: 20g

Included:
- 1x KST X12-508 Micro Metal Gear HV Digital Servo
- Assortment of 5 servo arms & screws