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Technical Specifications
Last Updated: 2026-10-24
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | A73BHLH |
| Category | Hobby |
| Performance | |
| Torque |
8.4V
417.00 oz-in
30.03 kg-cm
2.9 N-m
7.4V
375.00 oz-in
27.00 kg-cm
2.6 N-m
6.0V
333.00 oz-in
23.98 kg-cm
2.4 N-m
4.8V
305.00 oz-in
21.96 kg-cm
2.2 N-m
Above Average
|
| Speed |
8.4V
0.10 sec/60°
631.6 deg/s
105.3 RPM
7.4V
0.11 sec/60°
545.5 deg/s
90.9 RPM
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
Average
|
| Running Current |
8.4V
0.450 A
450 mA
7.4V
0.400 A
400 mA
6.0V
0.350 A
350 mA
4.8V
0.280 A
280 mA
Average
|
| Physical | |
| Weight | 2.54 oz72.0 gBelow Average |
| Dimensions |
L 1.57 in W 0.79 in H 1.48 in L 39.9 mm W 20.1 mm H 37.6 mm |
| Case Material | Aluminum |
| Drivetrain | |
| Motor Type | Brushless |
| Motor Drive | FET |
| Gears | Titanium / Steel |
| Gear Spline/Teeth | 25 T |
| Shaft Size | 5.9 mm |
| Rotation Mode | Positional |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Direction | Counterclockwise |
| Rotational Range | 180° |
| Mechanical Limit | 220° |
| Pulse Cycle | 3 ms |
| Pulse Width | 500-2500 µs |
| Neutral Position | 1520 µs |
| Dead Band | 2 µs |
| Refresh Rate | 333 Hz |
| Angle Sensor | Potentiometer |
| Control System | PWM |
| Programmable | Yes |
| Electrical & Environment | |
| Operating Voltage | 4.8–8.4 V |
| Power Source | 2S LiPo |
| Regulator Type | Direct |
| Temperature | -15–70 °C5–158 °F |
| Water Rating | IP67 |
| Certification | CE | ROHS | FCC |
| Connectivity | |
| Connector | JR (Universal) |
| Wire Length | 300 mm11.81 in |
| Origin | |
| Country of Origin | China |
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 | Above Average Stronger than 68% of 1060 Digital Standard servos at 4.8V |
| Speed | Average Faster than 39% of 1045 Digital Standard servos at 4.8V |
| Weight | Below Average Lighter than 27% of 1880 Digital Standard servos |
| Running Current | Average Lower draw than 43% of 226 Digital Standard servos at 4.8V |
Performance Analysis
| Shaft Power | 3.76–8.12 W |
| Power Density | 4.421 W/in³ More power-dense than 75% of 1768 Digital Standard servos |
| Torque Density | 4.2361 oz-in/g Stronger than 66% of 1053 Digital Standard servos |
| Torque-to-Volume Ratio | 166.15 oz-in/in³ Denser torque than 72% of 1058 Digital Standard servos |
| Speed-to-Weight | 0.09259 (1/sec·g) Faster than 28% of 1038 Digital Standard servos |
| Speed-Torque Trade-off | 45.75 Better balanced than 71% of 1034 Digital Standard servos |
| Torque Gain per Volt | 10.20%/V More voltage-responsive (torque) than 19% of 873 Digital Standard servos |
| Speed Gain per Volt | 16.08%/V More voltage-responsive (speed) than 53% of 874 Digital Standard servos |
| Voltage Range Width | 3.6 V Wider voltage range than 79% of 1560 Digital Standard servos |
| Dead-Band-to-Pulse-Width Ratio | 0.0010 Finer dead band than 74% of 504 Digital Standard servos |
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Weight: 73 grams
Dimensions: 1.57" x 0.79" x 1.43"
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