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Futaba S-U301 S-Bus Digital Servo BB 0.16s/3.9Kg (P-SU301)


The new FUTABA S-U301 is an inexpensive S.BUS2 universal servo. Technically, it's the HV version of the S-U300 servo with ball bearings. With an actuating force of just under 4 kg.cm and an actuating speed of 0.16 s, it is predestined for simple applications in RC cars, boats and flight models. The S-U301 replaces the previous servo types S3001, S3151 and S3073HV.

Programmable through S.BUS2 technology. Of course, all S.BUS2 servos can be connected to conventional receivers with PWM modulation. The servos can be addressed in different ways:

  1. With the handy programmer SBC-1
  2. On the PC with the USB adapter CIU-3
  3. On the S.BUS connection of the transmitter

The following parameters can be set:

  • S.BUS channel assignment
  • Servo reversal
  • Servo type (normal / retractable landing gear)
  • Soft start (on / off)
  • Mode selection in the event of signal failure Hold or Free
  • Soft servo run (on / off)
  • Servo position (servo tester)
  • Servo centre adjustment +/- 300 µs (approx. 30 degrees)
  • Servo speed, 0.39 - 9 seconds per 45 degrees
  • Setting the dead band
  • Servo travel adjustment left and right separately, approx. 50 - 175%
  • Starting power
  • cushioning
  • Holding power
  • ID storage


  • Powerful S.BUS2 digital servo with plastic gear & ball-bearing
  • Hi-Voltage Low-wear potentiometer
  • Robust plastic housing
  • High resolution
  • High positioning accuracy
  • Digital


  • Voltage range: 4.0-8.0v
  • Speed @ 6.6v: 0.18s
  • Speed @ 7.4v: 0.16s
  • Torque @ 6.6v: 3.5kg
  • Torque @ 7.4v: 3.9kg
  • Weight: 36g
  • Size: 40.5 x 20 x 36.1 mm


£22.90 Each
4 for £86.00

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