Discover XQ-Power Servos in Our eBay Store!
Shop Now
Technical Specifications
Last Updated: 2026-10-26| Identity | |
| Brand |  |
| Product Number | BLS1809M |
| Category | Hobby |
| Performance | |
| Torque |
8.4V
333.29 oz-in
24.00 kg-cm
2.4 N-m
7.4V
305.52 oz-in
22.00 kg-cm
2.2 N-m
6.0V
249.97 oz-in
18.00 kg-cm
1.8 N-m
Top 10%
|
| Speed |
8.4V
0.07 sec/60°
857.1 deg/s
142.9 RPM
7.4V
0.08 sec/60°
750.0 deg/s
125.0 RPM
6.0V
0.09 sec/60°
666.7 deg/s
111.1 RPM
Above Average
|
| Physical | |
| Weight | 1.59 oz45.0 gBottom 10% |
| Dimensions |
L 1.398 in W 0.591 in H 1.398 in L 35.5 mm W 15.0 mm H 35.5 mm |
| Case Material | Aluminum |
| Drivetrain | |
| Motor Type | Brushless |
| Gears | Steel |
| Gear Spline/Teeth | 25 T |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Pulse Cycle | 3.003 ms |
| Refresh Rate | 333 Hz |
| Electrical & Environment | |
| Operating Voltage | 6–8.4 V |
| Connectivity | |
| Connector | JR (Universal) estimate |
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 | Top 10% Stronger than 99% of 290 Digital Mini servos at 6.0V |
| Speed | Above Average Faster than 72% of 293 Digital Mini servos at 6.0V |
| Weight | Bottom 10% Lighter than 3% of 505 Digital Mini servos |
Performance Analysis
| Shaft Power | 5.14–8.80 W |
| Power Density | 7.622 W/in³ More power-dense than 93% of 482 Digital Mini servos |
| Torque Density | 5.5549 oz-in/g Stronger than 98% of 286 Digital Mini servos |
| Torque-to-Volume Ratio | 216.41 oz-in/in³ Denser torque than 97% of 288 Digital Mini servos |
| Speed-to-Weight | 0.24691 (1/sec·g) Faster than 22% of 289 Digital Mini servos |
| Speed-Torque Trade-off | 22.50 Better balanced than 96% of 288 Digital Mini servos |
| Torque Gain per Volt | 13.89%/V More voltage-responsive (torque) than 27% of 257 Digital Mini servos |
| Speed Gain per Volt | 11.90%/V More voltage-responsive (speed) than 20% of 262 Digital Mini servos |
| Voltage Range Width | 2.4 V Wider voltage range than 49% of 405 Digital Mini servos |
Notes
Optimized for Heli, Airplane, and Jet Aircraft. Working frequency selectable (1520us/333Hz or 760us/560Hz) but requires TBOX Program Card. Servo Grommet suggested for Nitro Heli.
Similar Active Servos
Reviews (21)
Includes 21 reviews aggregated from around the web.
Owners rate this servo very highly: 20 of 21 reviews on a retailer's listing are five stars and the other is a three-star comment about a late delivery. Buyers call it very fast, strong and tight, say it fits Goblin 520 and Raw 580 frames perfectly and centers precisely, and one says the set still performed after a crash. Several are repeat buyers of the brand and call the servos very reliable.
Be the first to review!