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Technical Specifications
Last Updated: 2026-10-23
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | FS0403 |
| Category | Hobby |
| Performance | |
| Torque |
6.0V
9.70 oz-in
0.70 kg-cm
0.1 N-m
4.8V
8.30 oz-in
0.60 kg-cm
0.1 N-m
Bottom 10%
|
| Speed |
6.0V
0.08 sec/60°
750.0 deg/s
125.0 RPM
4.8V
0.09 sec/60°
666.7 deg/s
111.1 RPM
Top 10%
|
| Running Current |
6.0V
0.070 A
70 mA
4.8V
0.060 A
60 mA
Top 10%
|
| Stall Current | 0.5–0.6 A500–600 mAAverage |
| Physical | |
| Weight | 0.18 oz5.0 gAbove Average |
| Dimensions |
L 0.787 in W 0.327 in H 0.76 in L 20.0 mm W 8.3 mm H 19.3 mm |
| Case Material | Plastic |
| Drivetrain | |
| Motor Type | Brushed |
| Gears | Plastic |
| Gear Spline/Teeth | 20 T |
| Rotation Mode | Positional |
| Rotation/Support | Bushing |
| Control & Signal | |
| Modulation | Analog |
| Rotational Range | 120° |
| Pulse Width | 900-2100 µs |
| Neutral Position | 1500 µs |
| Dead Band | 4 µs |
| Control System | PWM |
| Signal Voltage | 3-5V |
| Electrical & Environment | |
| Operating Voltage | 4.8–6 V |
| Temperature | -15–70 °C5–158 °F |
| Certification | RoHS |
| Idle Current | 0.006 A6 mA |
| Connectivity | |
| Connector | JR (Universal) estimate |
| Wire Length | 150 mm5.91 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 | Bottom 10% Stronger than 8% of 176 Analog Micro servos at 4.8V |
| Speed | Top 10% Faster than 95% of 176 Analog Micro servos at 4.8V |
| Weight | Above Average Lighter than 78% of 372 Analog Micro servos |
| Running Current | Top 10% Lower draw than 97% of 38 Analog Micro servos at 4.8V |
| Stall Current | Average Lower draw than 64% of 57 Analog Micro servos |
Performance Analysis
| Shaft Power | 0.17–0.22 W |
| Power Density | 1.146 W/in³ More power-dense than 74% of 357 Analog Micro servos |
| Torque Density | 1.6600 oz-in/g Stronger than 18% of 176 Analog Micro servos |
| Torque-to-Volume Ratio | 42.44 oz-in/in³ Denser torque than 31% of 176 Analog Micro servos |
| Speed-to-Weight | 2.22222 (1/sec·g) Faster than 91% of 176 Analog Micro servos |
| Speed-Torque Trade-off | 0.75 Better balanced than 5% of 175 Analog Micro servos |
| Current-per-Torque Ratio | 0.0723 A/oz-in More efficient than 5% of 44 Analog Micro servos |
| Idle-to-Running Current Ratio | 0.100 Lower idle draw than 17% of 30 Analog Micro servos |
| No-Load vs Stall Current Spread | 10.00 Narrower current spread than 7% of 29 Analog Micro servos |
| Torque Gain per Volt | 14.06%/V More voltage-responsive (torque) than 43% of 110 Analog Micro servos |
| Speed Gain per Volt | 10.41%/V More voltage-responsive (speed) than 21% of 110 Analog Micro servos |
| Voltage Range Width | 1.2 V Wider voltage range than 36% of 197 Analog Micro servos |
| Dead-Band-to-Pulse-Width Ratio | 0.0033 Finer dead band than 71% of 50 Analog Micro servos |
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Reviews (8)
Includes 8 reviews aggregated from around the web.
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