Discover XQ-Power Servos in Our eBay Store!
Shop Now
Technical Specifications
Last Updated: 2026-10-08
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | FS5103R |
| Category | Robotics |
| Performance | |
| Torque |
6.0V
44.50 oz-in
3.20 kg-cm
0.3 N-m
4.8V
41.70 oz-in
3.00 kg-cm
0.3 N-m
Bottom 10%
|
| Speed |
6.0V
0.13 sec/60°
480.0 deg/s
80.0 RPM
4.8V
0.18 sec/60°
329.7 deg/s
54.9 RPM
Average
|
| Running Current |
6.0V
0.180 A
180 mA
4.8V
0.150 A
150 mA
Above Average
|
| Stall Current | ≤1.1 A≤1100 mAAbove Average |
| Physical | |
| Weight | 1.46 oz41.5 gAbove Average |
| Shape | Boxed |
| Dimensions |
L 1.579 in W 0.793 in H 1.464 in L 40.1 mm W 20.1 mm H 37.2 mm |
| Case Material | Nylon / Fiberglass |
| Drivetrain | |
| Motor Type | Brushed |
| Gears | Nylon |
| Gear Spline/Teeth | 25 T |
| Rotation Mode | Continuous |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Analog |
| Direction | Counterclockwise |
| Rotational Range | 360° |
| Mechanical Limit | No Limit |
| Pulse Width | 500-2500 µs |
| Neutral Position | 1500 µs |
| Dead Band | 10 µs |
| Control System | PWM |
| Electrical & Environment | |
| Operating Voltage | 4.8–6 V |
| Temperature | -15–70 °C5–158 °F |
| Idle Current | 0.006 A6 mA |
| Connectivity | |
| Connector | JR (Universal) estimate |
| 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 | Bottom 10% Stronger than 9% of 192 Analog Standard servos at 4.8V |
| Speed | Average Faster than 43% of 190 Analog Standard servos at 4.8V |
| Weight | Above Average Lighter than 79% of 448 Analog Standard servos |
| Running Current | Above Average Lower draw than 82% of 50 Analog Standard servos at 4.8V |
| Stall Current | Above Average Lower draw than 68% of 64 Analog Standard servos |
Performance Analysis
| Shaft Power | 0.42–0.66 W |
| Power Density | 0.359 W/in³ More power-dense than 24% of 437 Analog Standard servos |
| Torque Density | 1.0048 oz-in/g Stronger than 15% of 192 Analog Standard servos |
| Torque-to-Volume Ratio | 22.75 oz-in/in³ Denser torque than 10% of 192 Analog Standard servos |
| Speed-to-Weight | 0.13240 (1/sec·g) Faster than 71% of 190 Analog Standard servos |
| Speed-Torque Trade-off | 7.59 Better balanced than 9% of 190 Analog Standard servos |
| Current-per-Torque Ratio | 0.0264 A/oz-in More efficient than 12% of 58 Analog Standard servos |
| Idle-to-Running Current Ratio | 0.040 Lower idle draw than 63% of 39 Analog Standard servos |
| No-Load vs Stall Current Spread | 7.33 Narrower current spread than 39% of 37 Analog Standard servos |
| Torque Gain per Volt | 5.60%/V More voltage-responsive (torque) than 2% of 145 Analog Standard servos |
| Speed Gain per Volt | 37.99%/V 2nd-highest speed gain per volt of 147 Analog Standard servos |
| Voltage Range Width | 1.2 V Wider voltage range than 21% of 229 Analog Standard servos |
| Dead-Band-to-Pulse-Width Ratio | 0.0050 Finer dead band than 27% of 49 Analog Standard servos |
Similar Active Servos
Reviews of FeeTech FS5103R
Be the first to review!