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Technical Specifications
Last Updated: 2026-10-24
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | SM-S4303S |
| Category | Hobby |
| Performance | |
| Torque |
6.0V
57.80 oz-in
4.16 kg-cm
0.4 N-m
4.8V
44.10 oz-in
3.18 kg-cm
0.3 N-m
Below Average
|
| Speed |
6.0V
0.18 sec/60°
333.3 deg/s
55.6 RPM
4.8V
0.20 sec/60°
300.0 deg/s
50.0 RPM
Below Average
|
| Physical | |
| Weight | 1.55 oz44.0 gAbove Average |
| Dimensions |
L 1.654 in W 0.807 in H 1.555 in L 42.0 mm W 20.5 mm H 39.5 mm |
| Drivetrain | |
| Motor Type | Brushed |
| Gears | Hybrid |
| Gear Spline/Teeth | 25 T estimate |
| Rotation/Support | Bushing |
| Control & Signal | |
| Modulation | Analog |
| Rotational Range | 120° |
| Neutral Position | 1500 µs |
| Control System | PWM |
| Electrical & Environment | |
| Operating Voltage | 4.8–6 V |
| Connectivity | |
| Connector | JR (Universal) |
| 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 | Below Average Stronger than 18% of 198 Analog Standard servos at 4.8V |
| Speed | Below Average Faster than 30% of 195 Analog Standard servos at 4.8V |
| Weight | Above Average Lighter than 70% of 447 Analog Standard servos |
Performance Analysis
| Shaft Power | 0.41–0.59 W |
| Power Density | 0.286 W/in³ More power-dense than 13% of 432 Analog Standard servos |
| Torque Density | 1.0023 oz-in/g Stronger than 16% of 198 Analog Standard servos |
| Torque-to-Volume Ratio | 21.25 oz-in/in³ Denser torque than 5% of 198 Analog Standard servos |
| Speed-to-Weight | 0.11364 (1/sec·g) Faster than 54% of 195 Analog Standard servos |
| Speed-Torque Trade-off | 8.82 Better balanced than 24% of 195 Analog Standard servos |
| Torque Gain per Volt | 25.89%/V More voltage-responsive (torque) than 95% of 156 Analog Standard servos |
| Speed Gain per Volt | 9.25%/V More voltage-responsive (speed) than 10% of 156 Analog Standard servos |
| Voltage Range Width | 1.2 V Wider voltage range than 38% of 239 Analog Standard servos |
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