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THETA Razor-C1 NFC HV Standard Size Brushless Cyclic Servo (Black Edition)

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Product Description

THETA Razor-C1 NFC HV Standard Brushless Cyclic servo (Black Edition)

  • High voltage, High-Torque, standard size brushless Tail servo.

  • Ideal for 520 all the way to 800+ class helicopters.


  • The Theta servos are at the top of their class due to their ability to be fully programmed via an Android NFC enabled smartphone. You can adjust things such as the center point, refresh rate, acceleration, as well as the PID control loop of the servo. You can make it feel however you want it to!


  • All black design
  • High voltage compatibility
  • Brushless motor
  • Metal gears
  • Precision centering 
  • NFC Wireless tuning via Android devices
  • 25T Output Spline shaft 
  • All black cables
  • Neutral position: 760uS | 1520uS - Selectable
  • Sanwa SSR Compatible


  • Operating Voltage: 5V - 8.4V
  • Torque:
    • @2.6A:
      • 6V: 374 oz/in (27kg-cm)
      • 7.4V:  471oz/in (34kg-cm)
      • 8.4V: 499 oz/in (36kg-cm)
    • @5.0A:
      • 6V: 513 oz/in (37kg-cm)
      • 7.4V:  610 oz/in (44kg-cm)
      • 8.4V: 666 oz/in (48kg-cm)
  • Speed:
    • @2.6A:
      • 6V: 0.084 sec/60
      • 7.4V:  0.071 sec/60
      • 8.4V:  0.06 sec/60
    • @5.0A:
      • 6V: 0.079 sec/60
      • 7.4V: 0.067 sec/60
      • 8.4V:  0.056 sec/60


  • Weight: 73g (2.57 Oz)
  • Motor Type: Brushless
  • Spline: 25T

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