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Technical Specifications
Last Updated: 2026-09-28Identity
Performance
Physical
Drivetrain
Control & Signal
Electrical & Environment
Connectivity
Origin
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| Identity | |
| Brand |  |
| Product Number | HP-DS09SCD |
| Category | Hobby |
| Discontinued | Yes |
| Performance | |
| Torque |
6.0V
27.77 oz-in
2.00 kg-cm
0.2 N-m
4.8V
22.22 oz-in
1.60 kg-cm
0.2 N-m
|
| Speed |
6.0V
0.13 sec/60°
461.5 deg/s
76.9 RPM
4.8V
0.15 sec/60°
400.0 deg/s
66.7 RPM
|
| Running Current | (add) |
| Stall Current | 0.4–0.43 A400–430 mA |
| Physical | |
| Weight | 0.26 oz7.5 g |
| Dimensions |
L 0.91 in W 0.35 in H 0.90 in L 23.1 mm W 8.9 mm H 22.9 mm |
| Case Material | (add) |
| Drivetrain | |
| Motor Type | 3-pole |
| Motor Drive | (add) |
| Gears | Plastic |
| Gear Spline/Teeth | (add) |
| Shaft Size | (add) |
| Rotation Mode | Positional |
| Rotation/Support | Dual Bearings |
| Backlash | (add) |
| Control & Signal | |
| Modulation | Digital |
| Direction | Clockwise |
| Rotational Range | 140° |
| Mechanical Limit | (add) |
| Pulse Cycle | (add) |
| Pulse Width | 1000-2000 µs |
| Neutral Position | 1500 µs |
| Dead Band | 2 µs |
| Refresh Rate | 270 Hz |
| Angle Sensor | (add) |
| Control System | PWM |
| Programmable | Yes |
| Signal Voltage | 2.5-5V |
| Electrical & Environment | |
| Operating Voltage | 4.8–5.5 V |
| Power Source | (add) |
| Regulator Type | (add) |
| Temperature | -20–60 °C-4–140 °F |
| Water Rating | (add) |
| Certification | (add) |
| Idle Current | 0.006 A6 mA |
| Connectivity | |
| Connector | Futaba | JR |
| Wire Length | (add) |
| Origin | |
| Country of Origin | (add) |
Disclaimer: Most data is sourced from the manufacturer. Some data is sourced from our loyal community and with the help of AI. We aim for accuracy but are not responsible for inaccurate information.
Performance Analysis
| Shaft Power | 0.27–0.40 W |
| Torque Density | 2.9826 oz-in/g Stronger than 70% of the 242 Digital Micro servos in the database |
| Torque-to-Volume Ratio | 77.52 oz-in/in³ Denser torque than 56% of the 244 Digital Micro servos in the database |
| Power Density | 1.378 W/in³ More power-dense than 35% of the 544 Digital Micro servos in the database |
| Speed-to-Weight | 0.89486 (1/sec·g) Faster than 66% of the 242 Digital Micro servos in the database |
| Speed-Torque Trade-off | 3.33 Better balanced than 58% of the 244 Digital Micro servos in the database |
| Current-per-Torque Ratio | 0.0194 A/oz-in 5th-highest current-per-torque ratio of 48 Digital Micro servos |
| Voltage Range Width | 0.7 V Wider voltage range than 2% of the 409 Digital Micro servos in the database |
| Dead-Band-to-Pulse-Width Ratio | 0.0020 Finer dead band than 21% of the 123 Digital Micro servos in the database |
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Reviews (2)
-
gra
December 29, 2010Application(s): DLG Wings
Comments: stripped one
they have a plastic gear in the train
noisy
high current drain
otherwise excellentmikehlg
February 18, 2010Application(s): Discus Launch Gliders flaperon (Aileron/Flap) servo.
Comments: This is a fairly high stress application due to the large, full span flaperon and high speed launch. Also, high level precision is required for accurate wing camber adjustments.
In my opinion, this is the currently the best servo available for DLG wings because of it's good centre holding power, precision and gear robustness, combined with being only 9mm thick.
The dual ball bearing support for the output shaft helps reduce play and increase accuracy.The only negative I can think of is that the case is VERY thin. You have to make sure that when you install it, you do not squeeze the case as the gears will bind against the inside of the case.
I would rate 4.75 actually.