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KST

BR0023.0234

KST SV905-12 High Voltage (12V) Standard Tail Servo

KST SV905-12 High Voltage (12V) Standard Tail Servo

$126.99 CAD
$126.99 CAD
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KST SV905-12 HV Brushless Metal Gear Tail Servo

Purpose-built for 550–700 class RC helicopters, the SV905-12 HV delivers high torque and ultra-fast response for precise, rock-solid tail authority. Its brushless motor, hardened steel gears, and CNC aluminum case are engineered for durability—while the wide 8–13V operating range lets you run direct on HV setups without a regulator.


Specifications

Application Tail servo for 550–700 class RC helicopters
Operating Voltage 8.0 V – 13.0 V (rated 12 V DC)
Torque 13 kgf·cm @ 8.4 V
16 kgf·cm @ 12 V
17 kgf·cm @ 13 V
Speed (60°) 0.06 s @ 8.4 V
0.045 s @ 12 V
0.040 s @ 13 V
Control Signal 760 µs pulse, 560 Hz (tail-gyro mode)
Motor / Gears Brushless motor / Hardened steel gears
Bearings Dual ball bearings
Case CNC aluminum alloy
Dimensions 40.5 × 20 × 38 mm (±0.2 mm)
Weight ≈ 70 g (±10%)
Operating Temp. −10 °C to +65 °C


Features

  • High-voltage ready: Wide 8–13 V range for direct HV setups (2S–3S compatible in many systems).
  • Tail-optimized response: Up to 0.04 s/60° for crisp yaw corrections and hard stops.
  • Serious holding power: Up to 17 kgf·cm torque for demanding 3D maneuvers.
  • Brushless durability: Efficient, low-wear motor with hardened steel gear train.
  • CNC alloy case: Rigid housing for heat dissipation and gear alignment.
  • Smooth & precise: Dual ball bearings reduce friction and improve centering.
  • Tail-gyro signal: Works with 760 µs / 560 Hz tail outputs—check gyro compatibility. 
KST SV905-12 HV Brushless Metal Gear Tail Servo