Hitec D955TW Wide Voltage Ultra Torque 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.

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

Specifications:

Dimensions 1.57" x 0.78" x 1.46" (40.0 mm x 20.0 mm x 37.0 mm)

Product Weight 2.33 oz (66.0 g)

Output Shaft Style 25 tooth (H25T) spline

Voltage Range 4.8 V - 7.4 V

No-Load Speed (4.8V) 0.19 sec/60°

No-Load Speed (7.4V) 0.12 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 (Standard) 850-2350 μsec

Travel per µs (out of box) .097°/μsec

Travel per µsec (reprogrammed) 0.132°/μsec

Max Travel (out of box) 146°

Max Travel (reprogrammed) 198°

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

Internal Feedback Style 5KΩ Potentiometer

Output Shaft Support Dual Ball Bearing

Gear Type Straight Cut Spur

Gear Material Titanium

Wire Length 13" (330.2 mm)

Wire Gauge 20 AWG

Part Number	2221019
Manufacturer	Hitec

Hitec D955TW Wide Voltage Ultra Torque Servo

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