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Technical Specifications
Last Updated: 2026-10-09
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | PHD-S25 |
| Category | Hobby |
| Performance | |
| Torque |
8.4V
416.70 oz-in
30.01 kg-cm
2.9 N-m
7.4V
347.25 oz-in
25.00 kg-cm
2.5 N-m
6.0V
298.64 oz-in
21.50 kg-cm
2.1 N-m
Above Average
|
| Speed |
8.4V
0.06 sec/60°
1,000.0 deg/s
166.7 RPM
8.4V
0.06 sec/60°
1,000.0 deg/s
166.7 RPM
7.4V
0.06 sec/60°
1,000.0 deg/s
166.7 RPM
7.4V
0.06 sec/60°
1,000.0 deg/s
166.7 RPM
6.0V
0.08 sec/60°
750.0 deg/s
125.0 RPM
Above Average
6.0V
0.08 sec/60°
750.0 deg/s
125.0 RPM
Above Average
|
| Physical | |
| Weight | 2.72 oz77.0 gBelow Average |
| Dimensions |
L 1.602 in W 0.807 in H 1.52 in L 40.7 mm W 20.5 mm H 38.6 mm |
| Case Material | Aluminum |
| Drivetrain | |
| Motor Type | Brushless |
| Gears | Titanium / Steel |
| Gear Spline/Teeth | 25 T |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Neutral Position | 1520 µs |
| Refresh Rate | 1500 Hz |
| Programmable | Yes |
| Electrical & Environment | |
| Operating Voltage | 6–8.4 V |
| Temperature | -10–60 °C14–140 °F |
| Connectivity | |
| Connector | JR (Universal) estimate |
| Origin | |
| Country of Origin | Hong Kong |
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 | Above Average Stronger than 67% of 1043 Digital Standard servos at 6.0V |
| Speed | Above Average Faster than 87% of 1041 Digital Standard servos at 6.0V |
| Weight | Below Average Lighter than 17% of 1902 Digital Standard servos |
Performance Analysis
| Shaft Power | 6.90–12.84 W |
| Power Density | 6.535 W/in³ More power-dense than 88% of 1759 Digital Standard servos |
| Torque Density | 3.8784 oz-in/g Stronger than 57% of 1036 Digital Standard servos |
| Torque-to-Volume Ratio | 151.97 oz-in/in³ Denser torque than 64% of 1042 Digital Standard servos |
| Speed-to-Weight | 0.16234 (1/sec·g) Faster than 77% of 1033 Digital Standard servos |
| Speed-Torque Trade-off | 23.89 Better balanced than 43% of 1031 Digital Standard servos |
| Torque Gain per Volt | 16.47%/V More voltage-responsive (torque) than 57% of 850 Digital Standard servos |
| Speed Gain per Volt | 13.89%/V More voltage-responsive (speed) than 40% of 871 Digital Standard servos |
| Voltage Range Width | 2.4 V Wider voltage range than 55% of 1539 Digital Standard servos |
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