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Technical Specifications
Last Updated: 2026-10-22| Identity | |
| Brand |  |
| Product Number | S7919 |
| Category | Hobby |
| Performance | |
| Torque |
6.0V
43.88 oz-in
3.16 kg-cm
0.3 N-m
4.8V
36.80 oz-in
2.65 kg-cm
0.3 N-m
Above Average
|
| Speed |
6.0V
0.12 sec/60°
500.0 deg/s
83.3 RPM
4.8V
0.14 sec/60°
444.4 deg/s
74.1 RPM
Below Average
|
| Physical | |
| Weight | 0.38 oz10.8 gAverage |
| Dimensions |
L 0.93 in W 0.45 in H 1.06 in L 23.6 mm W 11.4 mm H 26.9 mm |
| Drivetrain | |
| Motor Type | 3-pole |
| Gears | Metal |
| Gear Spline/Teeth | 15 T estimate |
| Rotation Mode | Positional |
| Rotation/Support | Single Bearing |
| Control & Signal | |
| Modulation | Digital |
| Rotational Range | 90° |
| Neutral Position | 1500 µs |
| Refresh Rate | 333 Hz |
| Angle Sensor | Potentiometer |
| Programmable | Yes |
| Electrical & Environment | |
| Operating Voltage | 4.8–6 V |
| Idle Current | 0.007 A7 mA |
| Connectivity | |
| Connector | JR (Universal) |
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 68% of 363 Digital Micro servos at 4.8V |
| Speed | Below Average Faster than 29% of 361 Digital Micro servos at 4.8V |
| Weight | Average Lighter than 50% of 665 Digital Micro servos |
Performance Analysis
| Shaft Power | 0.50–0.68 W |
| Power Density | 1.524 W/in³ More power-dense than 42% of 625 Digital Micro servos |
| Torque Density | 3.4074 oz-in/g Stronger than 77% of 363 Digital Micro servos |
| Torque-to-Volume Ratio | 82.96 oz-in/in³ Denser torque than 59% of 359 Digital Micro servos |
| Speed-to-Weight | 0.68587 (1/sec·g) Faster than 47% of 361 Digital Micro servos |
| Speed-Torque Trade-off | 4.97 Better balanced than 68% of 358 Digital Micro servos |
| Torque Gain per Volt | 16.03%/V More voltage-responsive (torque) than 41% of 302 Digital Micro servos |
| Speed Gain per Volt | 10.43%/V More voltage-responsive (speed) than 11% of 305 Digital Micro servos |
| Voltage Range Width | 1.2 V Wider voltage range than 40% of 553 Digital Micro servos |
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Reviews (5)
Includes 5 reviews aggregated from around the web.
Owner opinion is mixed, from a handful of German-language forum threads. An owner with about 10 years of use in a thermal-glider model says it is not a bad servo but its failure rate is not negligible, and club mates have had sudden electronics failures after months of normal use. Another builder had aileron servos jitter at one deflection on both an original and a replacement unit, while others describe it as a good choice for 48-inch aerobatic planes.
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