Parts/Radio & control/Servos/Theta Servos THS921A Coreless Micro High Voltage Servo
Theta Servos THS921A Coreless Micro High Voltage Servo
Theta Servos

Theta Servos THS921A Coreless Micro High Voltage Servo

Part # TS-THS921A
Where to buy
$72.99
AMain Hobbies
Seen Oct 12, 2026
$72.99Buy
Prices are as last seen at the store; stock is not tracked.

About this part

Servo Overview:

Theta Servos THS921A Coreless Micro High Voltage Servo. Ideal for 450 class helicopters, such as Goblin 380, T-Rex 450, and many others with a rotor disc less than 420mm, the THS921A features an incredible torque of 108.32oz-in (7.8kg-cm) combined with a high speed of 0.10 sec/60° at 7.4V, high voltage compatible, excellent centering and high-efficiency brushless motor for smooth operation and efficiency! In addition, the THS921A is compatible with Futaba-type horns/arms! Get the THS921A coreless micro high voltage servo to elevate your flying experience to the sky!


Features

  • Ideal for 450 class helicopters, such as Goblin 380, T-Rex 450, GAUI X3, KDS Chase, and many others with a rotor disc less than 420mm
  • Incredible torque combined with high speed
  • High-efficiency brushless motor for smooth operation and efficiency
  • 100% high voltage compatible
  • Excellent centering
  • Compatible with Futaba-type horns/arms
  • Extremely lightweight
  • All aluminum case
  • All metal gears

Specifications:

  • Speed:
    • @6.0V: 0.12 sec/60°
    • @7.4V: 0.10 sec/60°
    • @8.4V: 0.09 sec/60°
  • Torque:
    • @6.0V: 91.65oz-in (6.6kg-cm)
    • @7.4V: 108.32oz-in (7.8kg-cm)
    • @8.4V: 119.43oz-in (8.6kg-cm)
  • Motor: Brushless
  • Operating Voltage: 6.0V-8.4V
  • Operating Temperature: -
  • Dimensions: 27.4x23x12mm
  • Weight: 21g
  • Operating Spline: Futaba

Includes:

  • (1) THS921A Coreless Micro High Voltage Servo
  • Composite Horns
  • Mounting Hardware

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