Hitec HS-422 Standard Deluxe Analog Servo

The Hitec HS-422 is a long-running standard-size analog servo, valued for its durability and how easily it can be modified. It suits budget robotics, wheeled robots, pan/tilt rigs and RC models that need a dependable servo on standard PWM.

Key features

• Output shaft supported top and bottom by bronze Oilite bushings

• Indirect-drive potentiometer on a board separate from the motor, making it straightforward to modify for 360° continuous rotation

• Nylon gears driven by a 3-pole ferrite motor

• Standard pulse-width control with 1500µs neutral and an 8µs dead band

• 300mm lead

Specifications

• Operating voltage: 4.8-6.0V

• Stall torque: 3.3kg.cm at 4.8V; 4.1kg.cm at 6.0V

• Speed (no load): 0.21 s/60° at 4.8V; 0.16 s/60° at 6.0V

• Current drain: 8mA idle and 150mA running at 4.8V; 8.8mA idle and 180mA running at 6.0V

• Control signal: 3-5V peak-to-peak square wave, 1500µs neutral

• Travel: 45° each side for a 400µs pulse change

• Dimensions: 40.6 x 19.8 x 36.6mm

• Weight: 45.5g

• Operating temperature: -20 to 60°C

It runs straight from a 4.8-6V receiver or BEC supply; keep it off unregulated 2S (7.4V) rails.