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Technical Specifications
Last Updated: 2026-09-13| Identity | |
| Brand |  |
| Category | Hobby |
| Discontinued | Yes |
| Performance | |
| Torque |
6.0V
51.00 oz-in
3.67 kg-cm
0.4 N-m
4.8V
42.00 oz-in
3.02 kg-cm
0.3 N-m
Below Average
|
| Speed |
6.0V
0.15 sec/60°
400.0 deg/s
66.7 RPM
4.8V
0.19 sec/60°
315.8 deg/s
52.6 RPM
Average
|
| Physical | |
| Weight | 1.66 oz47.1 gAverage |
| Dimensions |
L 1.60 in W 0.80 in H 1.40 in L 40.6 mm W 20.3 mm H 35.6 mm |
| Drivetrain | |
| Motor Type | 3-pole |
| Gears | Plastic |
| Gear Spline/Teeth | 24 T estimate |
| Rotation Mode | Positional |
| Rotation/Support | Bushing |
| Control & Signal | |
| Modulation | Analog |
| Direction | Clockwise |
| Rotational Range | 90° |
| Pulse Cycle | 20 ms |
| Pulse Width | 900-2100 µs |
| Neutral Position | 1500 µs |
| Dead Band | 8 µs |
| Refresh Rate | 50 Hz |
| Angle Sensor | Potentiometer |
| Control System | PWM |
| Programmable | No |
| Signal Voltage | 3-5V |
| Electrical & Environment | |
| Operating Voltage | 4.8–6 V |
| Power Source | External |
| Regulator Type | Direct |
| Temperature | -20–60 °C-4–140 °F |
| Idle Current | 0.008 A8 mA |
| Connectivity | |
| Connector | JR (Universal) estimate |
| Wire Length | 300 mm11.81 in |
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 14% of 191 Analog Standard servos at 4.8V |
| Speed | Average Faster than 40% of 189 Analog Standard servos at 4.8V |
| Weight | Average Lighter than 55% of 448 Analog Standard servos |
Performance Analysis
| Shaft Power | 0.41–0.63 W |
| Power Density | 0.351 W/in³ More power-dense than 23% of 437 Analog Standard servos |
| Torque Density | 0.8917 oz-in/g Stronger than 6% of 191 Analog Standard servos |
| Torque-to-Volume Ratio | 23.44 oz-in/in³ Denser torque than 13% of 191 Analog Standard servos |
| Speed-to-Weight | 0.11174 (1/sec·g) Faster than 49% of 189 Analog Standard servos |
| Speed-Torque Trade-off | 7.98 Better balanced than 15% of 189 Analog Standard servos |
| Torque Gain per Volt | 17.86%/V More voltage-responsive (torque) than 64% of 144 Analog Standard servos |
| Speed Gain per Volt | 22.22%/V More voltage-responsive (speed) than 88% of 146 Analog Standard servos |
| Voltage Range Width | 1.2 V Wider voltage range than 63% of 229 Analog Standard servos |
| Dead-Band-to-Pulse-Width Ratio | 0.0067 Finer dead band than 20% of 50 Analog Standard servos |
Notes
This servo was replaced by the HS-322. It also came in a ball bearing version, HS-300BB, with all other specs identical.
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Reviews (3)
-
Boater
March 18, 2018Application(s): Rudder for Boat All controls on plane
Comments: They did the job with no problems at all
ayadi
September 20, 2017Application(s): construction robot
Comments: happy
sploutchnick
May 20, 2015Application(s): training plane
Comments: I don't like this servo very much. Mine are oldtimers - beginning of the nineties! - and came as I used Graupner C505, Sanwa SM631 and Robbe RS 100. I noticed they were a bit more powerful and perhaps speedy - read what was my comparison basis... - but I found they were noisy, gritty like there was sand inside the gears, and I haven't the same building quality feeling. So, decent servos, but they don't have any interest in front of nowadays chinese high-entry level (!) like towerpro 996, IMHO.