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Technical Specifications
Last Updated: 2026-10-22
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 | 900-2100 µs |
| Neutral Position | 1520 µs |
| Refresh Rate | 333 Hz |
| Angle Sensor | Potentiometer |
| Control System | PWM |
| Programmable | Yes |
| Signal Voltage | 3.3–5V |
| 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 290 Digital Mini servos at 4.8V |
| Speed | Average Faster than 41% of 293 Digital Mini servos at 4.8V |
| Weight | Top 10% Lighter than 94% of 505 Digital Mini servos |
| Stall Current | Average Lower draw than 56% of 94 Digital Mini servos |
Performance Analysis
| Shaft Power | 0.71–1.92 W |
| Power Density | 5.194 W/in³ More power-dense than 86% of 482 Digital Mini servos |
| Torque Density | 3.3313 oz-in/g Stronger than 80% of 286 Digital Mini servos |
| Torque-to-Volume Ratio | 134.85 oz-in/in³ Denser torque than 83% of 288 Digital Mini servos |
| Speed-to-Weight | 0.51282 (1/sec·g) Faster than 82% of 289 Digital Mini servos |
| Speed-Torque Trade-off | 6.50 Better balanced than 44% of 288 Digital Mini servos |
| Current-per-Torque Ratio | 0.0320 A/oz-in More efficient than 37% of 58 Digital Mini servos |
| Torque Gain per Volt | 18.52%/V More voltage-responsive (torque) than 64% of 257 Digital Mini servos |
| Speed Gain per Volt | 17.36%/V More voltage-responsive (speed) than 56% of 262 Digital Mini servos |
| Voltage Range Width | 3.6 V Wider voltage range than 85% of 405 Digital Mini servos |
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