D646WP Waterproof Servo (Standard Size, Digital)


Need a servo for your project? This standard size digital servo is waterproof with high torque, dual ball bearings, and metal gears.

In stock (can be backordered)

SKU: HITEC-D646WP Category:
HS Code: 8501.31.60.00


Hitec’s waterproof servos have what it takes to keep your robot watertight! With high torque, dual ball bearings and metal gears, these digital waterproof servos have the industry‚Äôs first IP67* rating ranking them among the most durable and reliable servos for wet conditions. Whether you are manning your power boat, bashing in the mud, or directing your underwater robot, the D646WP will dependably keep your mind at ease.

IP = International Protection Code

6 = Dust Tight

7 = Immersion up to 1M


  • Industry’s First IP67-Rated Waterproof Case
  • Strong Three-Pole Ferrite Motor
  • Metal Gear Train with MP First Gear
  • Dual Ball Bearing-Supported Output Shaft
  • 2-Cell LiPo Capability
  • Programmable Circuitry


Control Signal Standard 3-5V Pulse Width Control
1500 μs – neutral (+/- 1 μs deadband)
1100 μs – 45 ° counter-clockwise
1900 μs – 45 ° clockwise
Speed 0.24 s/60° @ 4.8V
0.19 s/60° @ 6.0V
0.16 s/60° @ 7.4V
Torque 105 oz/in @ 4.8V
134 oz/in @ 6.0V
162 oz/in @ 7.4V
7.5 kg/cm @ 4.8V
9.6 kg/cm @ 6.0V
11.6 kg/cm @ 7.4V
Dimensions 1.65in x 0.83in x 1.57in 41.8mm x 21.0mm x 40.0mm
Weight in Air 0.13 lb 61 g
Weight in Water TBD TBD
Electrical Connector 3-pin female (0.1″ pitch)
Cable Length 7.0 in 178 mm