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Technical Specifications
Last Updated: 2026-10-09
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | HD-1800A |
| Category | Hobby |
| Performance | |
| Torque |
6.0V
18.00 oz-in
1.30 kg-cm
0.1 N-m
4.8V
13.80 oz-in
0.99 kg-cm
0.1 N-m
Below Average
|
| Speed |
6.0V
0.08 sec/60°
750.0 deg/s
125.0 RPM
4.8V
0.11 sec/60°
545.5 deg/s
90.9 RPM
Above Average
|
| Running Current |
6.0V
0.140 A
140 mA
4.8V
0.120 A
120 mA
Above Average
|
| Stall Current | ≤0.46 A≤460 mAAbove Average |
| Physical | |
| Weight | 0.28 oz8.0 gAverage |
| Dimensions |
L 0.82 in W 0.46 in H 1.04 in L 20.8 mm W 11.7 mm H 26.4 mm |
| Case Material | Plastic |
| Drivetrain | |
| Motor Type | Coreless |
| Gears | Plastic |
| Gear Spline/Teeth | 25 T estimate |
| Rotation Mode | Positional |
| Rotation/Support | Bushing |
| Control & Signal | |
| Modulation | Analog |
| Rotational Range | 180° |
| Pulse Cycle | 20 ms |
| Pulse Width | 800-2200 µs |
| Neutral Position | 1520 µs |
| Refresh Rate | 50 Hz |
| Control System | PWM |
| Programmable | No |
| Signal Voltage | 3-5V |
| Electrical & Environment | |
| Operating Voltage | 4.8–6 V |
| Temperature | -20–60 °C-4–140 °F |
| Connectivity | |
| Connector | JR (Universal) estimate |
| Wire Length | 152.4 mm6 in |
| Origin | |
| Country of Origin | Poland |
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 26% of 170 Analog Micro servos at 4.8V |
| Speed | Above Average Faster than 79% of 170 Analog Micro servos at 4.8V |
| Weight | Average Lighter than 54% of 346 Analog Micro servos |
| Running Current | Above Average Lower draw than 75% of 33 Analog Micro servos at 4.8V |
| Stall Current | Above Average Lower draw than 77% of 54 Analog Micro servos |
Performance Analysis
| Shaft Power | 0.23–0.42 W |
| Power Density | 1.060 W/in³ More power-dense than 68% of 333 Analog Micro servos |
| Torque Density | 1.7250 oz-in/g Stronger than 18% of 170 Analog Micro servos |
| Torque-to-Volume Ratio | 35.18 oz-in/in³ Denser torque than 16% of 170 Analog Micro servos |
| Speed-to-Weight | 1.13636 (1/sec·g) Faster than 62% of 170 Analog Micro servos |
| Speed-Torque Trade-off | 1.52 Better balanced than 26% of 169 Analog Micro servos |
| Current-per-Torque Ratio | 0.0333 A/oz-in More efficient than 68% of 45 Analog Micro servos |
| No-Load vs Stall Current Spread | 3.83 Narrower current spread than 54% of 25 Analog Micro servos |
| Torque Gain per Volt | 25.36%/V More voltage-responsive (torque) than 93% of 96 Analog Micro servos |
| Speed Gain per Volt | 31.24%/V 3rd-highest speed gain per volt of 96 Analog Micro servos |
| Voltage Range Width | 1.2 V Wider voltage range than 69% of 182 Analog Micro servos |
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