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Technical Specifications
Last Updated: 2026-11-05| Identity | |
| Brand |  |
| Product Number | BMS-101DMG |
| Category | Hobby |
| Performance | |
| Torque |
6.0V
13.89 oz-in
1.00 kg-cm
0.1 N-m
4.8V
11.11 oz-in
0.80 kg-cm
0.1 N-m
3.8V
8.33 oz-in
0.60 kg-cm
0.1 N-m
|
| Speed |
6.0V
0.07 sec/60°
857.1 deg/s
142.9 RPM
4.8V
0.09 sec/60°
666.7 deg/s
111.1 RPM
3.8V
0.11 sec/60°
545.5 deg/s
90.9 RPM
|
| Physical | |
| Weight | 0.16 oz4.4 gAverage |
| Dimensions |
L 0.732 in W 0.299 in H 0.618 in L 18.6 mm W 7.6 mm H 15.7 mm |
| Case Material | Nylon |
| Drivetrain | |
| Motor Type | Coreless |
| Gears | Metal |
| Gear Spline/Teeth | 19 T |
| Rotation/Support | Bushing |
| Control & Signal | |
| Modulation | Digital |
| Rotational Range | 120° |
| Pulse Cycle | 3.003 ms |
| Pulse Width | 900-2100 µs |
| Neutral Position | 1500 µs |
| Dead Band | 2 µs |
| Refresh Rate | 333 Hz |
| Control System | PWM |
| Programmable | No |
| Electrical & Environment | |
| Operating Voltage | 4.5–6.5 V |
| Temperature | -20–60 °C-4–140 °F |
| Idle Current | 0.003 A3 mA |
| Connectivity | |
| Connector | JR (Universal) estimate |
| Wire Length | 110 mm4.33 in |
| Origin | |
| Country of Origin | Taiwan |
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 | Average Lighter than 45% of 89 Digital Nano servos |
Performance Analysis
| Shaft Power | 0.14–0.37 W |
| Power Density | 2.713 W/in³ More power-dense than 75% of 81 Digital Nano servos |
| Torque Density | 1.8932 oz-in/g |
| Torque-to-Volume Ratio | 61.58 oz-in/in³ |
| Speed-to-Weight | 2.06612 (1/sec·g) |
| Speed-Torque Trade-off | 0.92 |
| Voltage Range Width | 2.0 V Wider voltage range than 51% of 77 Digital Nano servos |
| Dead-Band-to-Pulse-Width Ratio | 0.0017 Finer dead band than 27% of 31 Digital Nano servos |
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Reviews (77)
Includes 77 reviews aggregated from around the web.
Owners are mixed but lean positive. A UK glider retailer shows 74 reviews, and the favorable ones call it a tiny, thin, fast servo with tight gears that works well on a 1S LiPo for DLG gliders, spoilers and small aerobatic models. The recurring complaints are centering that is sometimes inconsistent (some traced to linkage friction), buzzing at rest, and a minority of units with backlash, jamming or failure to center out of the box; one buyer had two of four fail, and a forum user rates it sub par after extended use. Another forum user has flown eight without issues.
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