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Technical Specifications
Last Updated: 2026-09-28| 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
Below Average
|
| 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
Below Average
|
| Running Current |
5.5V
0.220 A
220 mA
4.8V
0.190 A
190 mA
Below Average
|
| Stall Current | 0.4–0.43 A400–430 mAAbove Average |
| Physical | |
| Weight | 0.26 oz7.5 gAbove Average |
| 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 |
| Drivetrain | |
| Motor Type | 3-pole |
| Gears | Plastic |
| Rotation Mode | Positional |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Direction | Clockwise |
| Rotational Range | 140° |
| Pulse Width | 1000-2000 µs |
| Neutral Position | 1500 µs |
| Dead Band | 2 µs |
| Refresh Rate | 270 Hz |
| Control System | PWM |
| Programmable | Yes |
| Signal Voltage | 2.5-5V |
| Electrical & Environment | |
| Operating Voltage | 4.8–5.5 V |
| Temperature | -20–60 °C-4–140 °F |
| Idle Current | 0.006 A6 mA |
| Connectivity | |
| Connector | Futaba | JR |
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.
Class Comparison
| Torque | Below Average Stronger than 35% of 328 Digital Micro servos at 4.8V |
| Speed | Below Average Faster than 18% of 328 Digital Micro servos at 4.8V |
| Weight | Above Average Lighter than 74% of 620 Digital Micro servos |
| Running Current | Below Average Lower draw than 35% of 53 Digital Micro servos at 4.8V |
| Stall Current | Above Average Lower draw than 84% of 194 Digital Micro servos |
Performance Analysis
| Shaft Power | 0.27–0.40 W |
| Power Density | 1.378 W/in³ More power-dense than 34% of 590 Digital Micro servos |
| Torque Density | 2.9826 oz-in/g Stronger than 69% of 327 Digital Micro servos |
| Torque-to-Volume Ratio | 77.52 oz-in/in³ Denser torque than 55% of 327 Digital Micro servos |
| Speed-to-Weight | 0.89486 (1/sec·g) Faster than 64% of 327 Digital Micro servos |
| Speed-Torque Trade-off | 3.33 Better balanced than 56% of 327 Digital Micro servos |
| Current-per-Torque Ratio | 0.0194 A/oz-in More efficient than 93% of 85 Digital Micro servos |
| Idle-to-Running Current Ratio | 0.032 Lower idle draw than 78% of 37 Digital Micro servos |
| No-Load vs Stall Current Spread | 2.26 5th-highest no-load vs stall current spread of 36 Digital Micro servos |
| Voltage Range Width | 0.7 V Wider voltage range than 3% of 511 Digital Micro servos |
| Dead-Band-to-Pulse-Width Ratio | 0.0020 Finer dead band than 26% of 189 Digital Micro servos |
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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.