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Technical Specifications
Last Updated: 2026-10-10
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 |
| 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 | No |
| 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 67% of 1043 Digital Standard servos at 4.8V |
| Speed | Average Faster than 37% of 1041 Digital Standard servos at 4.8V |
| Weight | Below Average Lighter than 26% of 1902 Digital Standard servos |
| Running Current | Average Lower draw than 49% of 173 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 74% of 1759 Digital Standard servos |
| Torque Density | 4.2361 oz-in/g Stronger than 65% of 1036 Digital Standard servos |
| Torque-to-Volume Ratio | 166.15 oz-in/in³ Denser torque than 69% of 1042 Digital Standard servos |
| Speed-to-Weight | 0.09259 (1/sec·g) Faster than 27% of 1033 Digital Standard servos |
| Speed-Torque Trade-off | 45.75 Better balanced than 71% of 1031 Digital Standard servos |
| Torque Gain per Volt | 10.20%/V More voltage-responsive (torque) than 19% of 850 Digital Standard servos |
| Speed Gain per Volt | 16.08%/V More voltage-responsive (speed) than 53% of 871 Digital Standard servos |
| Voltage Range Width | 3.6 V Wider voltage range than 80% of 1539 Digital Standard servos |
| Dead-Band-to-Pulse-Width Ratio | 0.0010 Finer dead band than 75% of 468 Digital Standard servos |
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Weight: 73 grams
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