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Technical Specifications
Last Updated: 2026-10-08
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | KST-2403 |
| Category | Hobby |
| Performance | |
| Torque |
8.4V
83.28 oz-in
6.00 kg-cm
0.6 N-m
7.4V
76.34 oz-in
5.50 kg-cm
0.5 N-m
6.0V
66.63 oz-in
4.80 kg-cm
0.5 N-m
4.8V
49.97 oz-in
3.60 kg-cm
0.4 N-m
Average
|
| Speed |
8.4V
0.08 sec/60°
750.0 deg/s
125.0 RPM
7.4V
0.09 sec/60°
666.7 deg/s
111.1 RPM
6.0V
0.11 sec/60°
545.5 deg/s
90.9 RPM
4.8V
0.13 sec/60°
461.5 deg/s
76.9 RPM
Average
|
| Stall Current | 0.95–1.6 A950–1600 mAAverage |
| Physical | |
| Weight | 0.53 oz15.0 gTop 10% |
| Dimensions |
L 0.906 in W 0.433 in H 0.945 in L 23.0 mm W 11.0 mm H 24.0 mm |
| Case Material | Aluminum |
| Drivetrain | |
| Motor Type | Coreless |
| Gears | Steel |
| Gear Spline/Teeth | 25 T |
| Rotation Mode | Positional |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Rotational Range | 100° |
| Pulse Cycle | 3.003 ms |
| Pulse Width | 1000-2000 µs |
| Neutral Position | 1520 µs |
| Refresh Rate | 333 Hz |
| Angle Sensor | Potentiometer |
| Control System | PWM |
| Programmable | Yes |
| Electrical & Environment | |
| Operating Voltage | 4.8–8.4 V |
| Temperature | -10–65 °C14–149 °F |
| 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 | Average Stronger than 39% of 262 Digital Mini servos at 4.8V |
| Speed | Average Faster than 42% of 263 Digital Mini servos at 4.8V |
| Weight | Top 10% Lighter than 95% of 466 Digital Mini servos |
| Stall Current | Average Lower draw than 57% of 76 Digital Mini servos |
Performance Analysis
| Shaft Power | 0.71–1.92 W |
| Power Density | 5.194 W/in³ More power-dense than 86% of 440 Digital Mini servos |
| Torque Density | 3.3313 oz-in/g Stronger than 77% of 258 Digital Mini servos |
| Torque-to-Volume Ratio | 134.85 oz-in/in³ Denser torque than 80% of 262 Digital Mini servos |
| Speed-to-Weight | 0.51282 (1/sec·g) Faster than 84% of 259 Digital Mini servos |
| Speed-Torque Trade-off | 6.50 Better balanced than 40% of 261 Digital Mini servos |
| Current-per-Torque Ratio | 0.0320 A/oz-in More efficient than 45% of 52 Digital Mini servos |
| Torque Gain per Volt | 18.52%/V More voltage-responsive (torque) than 66% of 232 Digital Mini servos |
| Speed Gain per Volt | 17.36%/V More voltage-responsive (speed) than 56% of 235 Digital Mini servos |
| Voltage Range Width | 3.6 V Wider voltage range than 88% of 351 Digital Mini servos |
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