JR DS398HV High Voltage Digital Precision Metal Gear Thin Wing Servo


This is the JR DS398HV High Voltage Digital Precision Metal Gear Thin Wing Servo, and is intended for airplane use or any application that requires a thin micro servo. In addition, this servo includes servo horns and hardware, and includes a three year limited manufacturer warranty. Since this servo is high voltage it can withstand the 7.4 voltage from a LiPo battery pack without a regulator, and while retaining comparable specifications to the DS398 non high voltage servo.

The DS398HV Thin Wing Servo offers class leading holding torque, zero deadband, and JR's legendary high resolution in a package that's ideal for high-performance sailplanes and electrics. By re-engineering certain internal components JR has improved upon the precision of the previous generation DS378 servo to give the DS398HV the performance advantage JR customers demand. 


  • High Voltage application servo
  • Low profile for thin wing applications
  • Side mounting lugs for easy installation
  • Ultra-precision electronics
  • Ideal for performance electrics, sailplanes and pylon models

Gear Type: Metal
Servo Type: Digital
Height: 1.14 in (29mm)
Width: .433 in (11mm)
Length: 1.18 in (30mm)
Weight: .78 oz (22 g)
Servo Voltage: 6.0 - 7.4V (High Voltage)
Size Category: Specialty
Speed (at 7.4V):
.13 sec/60 degrees (2S LiPo)
Torque (at 7.4V): 75 oz-in (5.4kg-cm) (2S LiPo)

This product was added to our catalog on September 13, 2012.

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