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Technical Specifications
Last Updated: 2026-09-16
|
Identity
Performance
Physical
Drivetrain
Control & Signal
Electrical & Environment
Connectivity
Origin
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Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | A73BHN-V2 |
| Category | Hobby |
| Performance | |
| Torque |
8.4V
263.86 oz-in
19.00 kg-cm
1.9 N-m
7.4V
236.09 oz-in
17.00 kg-cm
1.7 N-m
6.0V
208.31 oz-in
15.00 kg-cm
1.5 N-m
4.8V
194.42 oz-in
14.00 kg-cm
1.4 N-m
|
| Speed |
8.4V
0.06 sec/60°
983.6 deg/s
163.9 RPM
7.4V
0.07 sec/60°
882.4 deg/s
147.1 RPM
6.0V
0.08 sec/60°
800.0 deg/s
133.3 RPM
4.8V
0.09 sec/60°
705.9 deg/s
117.6 RPM
|
| 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
|
| Stall Current | (add) |
| Physical | |
| Weight | 2.59 oz73.5 g |
| Dimensions |
L 1.58 in W 0.79 in H 1.48 in L 40.0 mm W 20.0 mm H 37.5 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 |
| Backlash | (add) |
| 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 |
| Signal Voltage | (add) |
| Electrical & Environment | |
| Operating Voltage | 4.8–8.4 V |
| Power Source | 2S LiPo |
| Regulator Type | Direct |
| Temperature | -15–70 °C5–158 °F |
| Water Rating | None |
| Certification | CE | ROHS | UKCA |
| Idle Current | (add) |
| 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.
Performance Analysis
| Shaft Power | 4.23–8.00 W |
| Torque Density | 2.6452 oz-in/g Stronger than 39% of the 829 Digital Standard servos in the database |
| Torque-to-Volume Ratio | 106.27 oz-in/in³ Denser torque than 48% of the 840 Digital Standard servos in the database |
| Power Density | 4.372 W/in³ More power-dense than 74% of the 1643 Digital Standard servos in the database |
| Speed-to-Weight | 0.16006 (1/sec·g) Faster than 74% of the 818 Digital Standard servos in the database |
| Speed-Torque Trade-off | 16.53 Better balanced than 32% of the 823 Digital Standard servos in the database |
| Torque Gain per Volt | 9.92%/V More voltage-responsive (torque) than 18% of the 670 Digital Standard servos in the database |
| Speed Gain per Volt | 10.93%/V More voltage-responsive (speed) than 22% of the 684 Digital Standard servos in the database |
| Voltage Range Width | 3.6 V Wider voltage range than 73% of the 1268 Digital Standard servos in the database |
| Dead-Band-to-Pulse-Width Ratio | 0.0010 Finer dead band than 65% of the 326 Digital Standard servos in the database |
Quick Actions
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Weight: 70 grams
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Other Versions
This model has 1 other version. Only specs that differ are shown.
A73BHNH Cyclic Servo
- Length 1.57 in
- Width 0.79 in
- Height 1.48 in
- Gears Titanium
- Certification CE | ROHS | FCC
- Programmable No
- Product Number A73BHNH
- Torque @ 4.8V 194 oz-in
- Torque @ 6V 208 oz-in
- Torque @ 7.4V 229 oz-in
- Torque @ 8.4V 243 oz-in
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