D955TW Servo
The power of Hitec’s D-Series servos continues with the introduction of the next Premium Class trio: the D930SW, D954SW and D955TW. As with our entire “D” line, these technologically-advanced servos are powered by our 32-bit MCU (Microcontroller Unit) and 12-bit ADC (Analog to Digital Converter) industrial science and possess Smart Sense engineering with rapid, high resolution response. Their unprecedented programmability and wide-voltage capabilities deliver the most progressive, leading-edge performance for all your radio control needs. The reliably-strong titanium-geared D955TW replaces the well-known HS-7955TH.
How Far Will This Servo Rotate?
The answer to this question is partially dependent on what you are using to control the servo.
Click for a quick video explanation.
Stock:
With an Average Radio System:
87°
Your average transmitter and receiver will output a relatively narrow PWM signal range.
Radio System + Travel Tuner:
146°
Adding a Servo Travel Tuner to your radio system setup will allow you to achieve wide PWM signal ranges.
Wide Signal Controllers:
146°
Controllers such as the Servo Commander, 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 relatively narrow PWM signal range.
Radio System + Travel Tuner:
198°
Adding a Servo Travel Tuner to your radio system setup will allow you to achieve wide PWM signal ranges.
Wide Signal Controllers:
198°
Controllers such as the Servo Commander, Arduinos, and Raspberry Pi servo hats can usually send a wide signal.
Features
- Programmable PWM Digital Amplifier
- 32-Bit MCU with 12-Bit ADC Circuitry
- 4096 Resolution
- 1M Cycle Long Life Potentiometer
- Wide Operating Voltage (4.8 ~ 8.4 Volts DC)
- Dual Ball Bearing Supported Output Shaft
- 25-Tooth Output Spline
- Coreless Metal Brush Motors
- Nylon Reinforced Plastic Upper and Lower Case
- Diamond Cut Aluminum Heat Sink Center Case
- Dust Resistant and Splash Proof Case
Programmable Features
- End Point Adjustments
- Direction
- Fail Safe
- Dead Band
- Speed (Slower)
- Soft Start Rate
- Overload Protection
- Data Save / Load
- Program Reset
Tech Tips
Specs
| Output Shaft Style | H25T Spline |
|---|---|
| Voltage Range | 4.8 V - 7.4 V |
| No-Load Speed (7.4V) | 0.12 sec/60° |
| No-Load Speed (4.8V) | 0.19 sec/60° |
| Stall Torque (4.8V) | 251 oz-in. (18.07 kg.cm) |
| Stall Torque (7.4V) | 404 oz-in. (29.09 kg.cm) |
| Max PWM Signal Range | 850-2350 μsec |
| Travel per µs (Stock) | .097°/μsec |
| Max Rotation (Stock) | 146° |
| 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 | Titanium |
| Wire Length | 13" (330.2 mm) |
| Weight | 2.33 oz (66.0 g) |
| Wire Gauge | 20 AWG |
| Max Rotation (reprogrammed) | 198° |
| Travel per µsec (reprogrammed) | 0.132°/μsec |
| Servo Size | Standard |
Related Products:
These products have been hand curated by our R&D team. We have selected products that are directly compatible with or very relevant to the D955TW Servo.
