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Technical Specifications
Last Updated: 2026-10-25
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | OMG-ST-25DF |
| Category | Hobby |
| Performance | |
| Torque |
8.4V
345.00 oz-in
24.84 kg-cm
2.4 N-m
7.4V
317.00 oz-in
22.83 kg-cm
2.2 N-m
|
| Speed |
8.4V
0.11 sec/60°
535.7 deg/s
89.3 RPM
7.4V
0.13 sec/60°
472.4 deg/s
78.7 RPM
4.8V
0.15 sec/60°
405.4 deg/s
67.6 RPM
|
| Running Current |
7.4V
0.100 A
100 mA
6.0V
0.100 A
100 mA
Above Average
|
| Stall Current | 3.8–4.7 A3800–4700 mABelow Average |
| Physical | |
| Weight | 2.61 oz74.0 gBelow Average |
| Dimensions |
L 1.60 in W 0.81 in H 1.56 in L 40.6 mm W 20.6 mm H 39.6 mm |
| Case Material | Aluminum |
| Drivetrain | |
| Motor Type | Brushed |
| Gears | Stainless steel |
| Gear Spline/Teeth | 25 T |
| Rotation/Support | Dual Bearings |
| Backlash | 2.000° |
| Control & Signal | |
| Modulation | Digital |
| Rotational Range | 150° |
| Mechanical Limit | 180° |
| Pulse Width | 500-2500 µs |
| Neutral Position | 1520 µs |
| Dead Band | 2 µs |
| Refresh Rate | 333 Hz |
| Angle Sensor | Potentiometer |
| Control System | PWM |
| Programmable | No |
| Signal Voltage | 3-5V |
| Electrical & Environment | |
| Operating Voltage | 6–7.4 V |
| Temperature | -10–50 °C14–122 °F |
| Water Rating | IP67 |
| Idle Current | 0.005 A5 mA |
| Connectivity | |
| Connector | JR (Universal) |
| Wire Length | 300 mm11.81 in |
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
| Weight | Below Average Lighter than 22% of 1880 Digital Standard servos |
| Running Current | Above Average Lower draw than 83% of 226 Digital Standard servos at 6.0V |
| Stall Current | Below Average Lower draw than 28% of 570 Digital Standard servos |
Performance Analysis
| Shaft Power | 4.62–5.70 W |
| Power Density | 2.817 W/in³ More power-dense than 58% of 1768 Digital Standard servos |
| Torque Density | 4.2838 oz-in/g |
| Torque-to-Volume Ratio | 156.79 oz-in/in³ |
| Speed-to-Weight | 0.09131 (1/sec·g) |
| Speed-Torque Trade-off | 46.92 |
| Current-per-Torque Ratio | 0.0148 A/oz-in |
| Idle-to-Running Current Ratio | 0.050 Lower idle draw than 50% of 167 Digital Standard servos |
| No-Load vs Stall Current Spread | 47.00 Narrower current spread than 14% of 179 Digital Standard servos |
| Voltage Range Width | 1.4 V Wider voltage range than 26% of 1560 Digital Standard servos |
| Backlash-to-Range Ratio | 0.01333 Tighter backlash than 2% of 52 Digital Standard servos |
| Dead-Band-to-Pulse-Width Ratio | 0.0010 Finer dead band than 67% of 504 Digital Standard servos |
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