SI-4401-HV Standard Size Aluminum Servo

  • Brushless motor design provides extremely high speed, and low power consumption.
  • 4096 resolution and SIC (Single Integrated Circuit) for the highest performance and durability.
  • Aluminum middle case for optimized thermal dissipation.
  • Strong All Metal Gear
  • Glitch-free
  • Sophisticated error correction
  • High-Speed, High-precision 12-bit AD converter and CPU calculation
  • Fail safe
  • Over current protection
  • Over temperature protection
  • Start sonorant


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Type Standard
Product Name SI-4401-HV Standard Size Aluminum Servo
Part Name SI-4401-HV
Power Supply 6.0V~8.4V
Speed (sec/ 60°) @6.0V: .111sec/60° @7.4V: .090 sec/60° @8.4V: .079 sec/60°
Torque (oz/in) @6.0V: 186.41 oz-in @7.4V: 229.85 oz-in @8.4V: 260.94 oz-in
Torque (kg/cm) @6.0V: 13.43 kg-cm @7.4V: 16.56 kg-cm @8.4V: 18.80 kg-cm
Dimensions 40x37.80x20 mm
Weight 62.5g
Frequency 200/333 Hz
Range 50~400 Hz
Center Position 1520us
Applications Helicopter Cyclic