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Technical Specifications
Last Updated: 2026-07-28
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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 | 8503 |
| Category | Hobby |
| Discontinued | Yes |
| Performance | |
| Torque |
6.0V
16.70 oz-in
1.20 kg-cm
0.1 N-m
4.8V
13.90 oz-in
1.00 kg-cm
0.1 N-m
|
| Speed |
6.0V
0.09 sec/60°
666.7 deg/s
111.1 RPM
4.8V
0.12 sec/60°
500.0 deg/s
83.3 RPM
|
| Running Current | (add) |
| Stall Current | (add) |
| Physical | |
| Weight | 0.35 oz10.0 g |
| Dimensions |
L 0.89 in W 0.46 in H 0.91 in L 22.6 mm W 11.7 mm H 23.1 mm |
| Case Material | (add) |
| Drivetrain | |
| Motor Type | (add) |
| Motor Drive | (add) |
| Gears | Plastic |
| Gear Spline/Teeth | 25 T estimate |
| Shaft Size | (add) |
| Rotation Mode | (add) |
| Rotation/Support | Bushing |
| Backlash | (add) |
| Control & Signal | |
| Modulation | Analog |
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| Pulse Width | (add) |
| Neutral Position | (add) |
| Dead Band | (add) |
| Refresh Rate | (add) |
| Angle Sensor | (add) |
| Control System | PWM |
| Programmable | (add) |
| Signal Voltage | (add) |
| Electrical & Environment | |
| Operating Voltage | 4.8–6 V |
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| Regulator Type | (add) |
| Temperature | (add) |
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| Certification | (add) |
| Idle Current | (add) |
| Connectivity | |
| Connector | JR (Universal) estimate |
| Wire Length | (add) |
| Origin | |
| Country of Origin | (add) |
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 | 0.21–0.34 W |
| Torque Density | 1.3900 oz-in/g Stronger than 7% of the 131 Analog Micro servos in the database |
| Torque-to-Volume Ratio | 37.31 oz-in/in³ Denser torque than 22% of the 131 Analog Micro servos in the database |
| Power Density | 0.921 W/in³ More power-dense than 59% of the 319 Analog Micro servos in the database |
| Speed-to-Weight | 0.83333 (1/sec·g) Faster than 29% of the 130 Analog Micro servos in the database |
| Speed-Torque Trade-off | 1.67 Better balanced than 35% of the 130 Analog Micro servos in the database |
| Torque Gain per Volt | 16.79%/V More voltage-responsive (torque) than 61% of the 72 Analog Micro servos in the database |
| Speed Gain per Volt | 27.78%/V 3rd-highest speed gain per volt of 71 Analog Micro servos |
| Voltage Range Width | 1.2 V Wider voltage range than 78% of the 137 Analog Micro servos in the database |
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