Hitec HS5646WP Waterproof Metal Gear Digital Servo

The Hitec HS5646WP Waterproof Metal Gear HV Digital Servo, part number 2221990, is a high-voltage digital servo designed for dependable operation in wet conditions. Its waterproof construction carries an IP67 rating, making it a suggested choice for radio-controlled vehicles, boats, aircraft and robots where exposure to water, mud or spray is a concern. Metal gears provide durable drive components, while dual ball bearings support smooth and reliable servo movement. The three-pole motor delivers a useful balance of speed and torque, with the servo producing up to 12.9kg/cm of torque when powered at 7.4V. At the same voltage, its transit speed is 0.18 seconds over 60 degrees. At 6.0V, it provides 11.3kg/cm of torque and a 0.20-second speed over the same travel. This makes the HS5646WP suitable for applications needing strong, responsive control in demanding environments.

Features

The waterproof design helps protect the servo when used in conditions where moisture is present, while the metal gearing is intended to withstand the demands of powered models and other radio-controlled projects. High-voltage operation allows use at either 6.0V or 7.4V, with the higher voltage offering increased torque and faster response according to the manufacturer’s figures. Suggested compatibility includes wet-weather RC vehicles, power boats, water-landing aircraft and underwater robotics, subject to the requirements of the individual model.

Specifications

• Operating voltage: 6.0V or 7.4V
• Speed: 0.20 sec/60° at 6.0V; 0.18 sec/60° at 7.4V
• Torque: 11.3kg/cm at 6.0V; 12.9kg/cm at 7.4V
• Gear type: Metal
• Bearing type: Dual ball bearing
• Dimensions: 41.8 x 21.0 x 40.0mm
• Weight: 61g
• Motor type: 3-pole