D777MG Servo

Hitec's low profile D777MG servo has evolved directly from their popular metal gear HS-7775MG and HS-8775MG. With 32-bit high resolution, ultra-response technology and wide voltage operation, the D777MG is the perfect solution for hobbyists requiring a low profile servo with an efficient coreless metal brushed motor.

How Far Will This Servo Rotate?

The answer to this question is partially dependant on what you are using to control the servo.
Click for a quick video explanation.

Stock:

With an Average Radio System:
90°
Your average transmitter and receiver will output a relativly narrow PWM signal range.

Radio System + Servo Stretcher:
144°
Adding a Servo Stretcher to your radio system setup will allow you to achieve wide PWM signal ranges.

Wide Signal Controllers:
144°
Controllers such as the Actobotics® Servo Controller, Arduinos, and Raspberry Pi servo hats can usually send a wide signal.

Reprogrammed:

Whether you purchase the reprogrammed option or get a servo programmer and do it yourself, a reprogrammed version of this servo will be able to achieve greater travel than it can in stock form.

With an Average Radio System:
118°
Your average transmitter and receiver will output a relativly narrow PWM signal range.

Radio System + Servo Stretcher:
190°
Adding a Servo Stretcher to your radio system setup will allow you to achieve wide PWM signal ranges.

Wide Signal Controllers:
190°
Controllers such as the Actobotics® Servo Controller, Arduinos, and Raspberry Pi servo hats can usually send a wide signal.

Tech Tips

Specs

Output Shaft Style H25T Spline
Voltage Range 4.8 V - 6.0 V
No-Load Speed (4.8V) 0.09 sec/60°
No-Load Speed (6.0V) 0.07 sec/60°
Stall Torque (4.8V) 72 oz-in. (5.18 kg.cm)
Stall Torque (6.0V) 90 oz-in. (6.48 kg.cm)
Max PWM Signal Range 760-2200 μsec
Travel per µs (Stock) 0.100°/μsec
Pulse Amplitude 3-5 V
Operating Temperature -20°C to +60°C
Continuous Rotation Modifiable Yes
Direction w/ Increasing PWM Signal Clockwise
Deadband Width 1 µs
Motor Type Coreless Metal Brush
Feedback Style 5KΩ Potentiometer
Output Shaft Support Dual Ball Bearing
Gear Material MP 1st Gear & 3 Metal Gears
Wire Length 8" (203.2 mm)
Weight 1.80 oz (45.0 g)
Max Rotation (Stock) 144°
Max Rotation (Reprogrammed) 190°
Travel per µs (Reprogrammed) 0.132°/µsec