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Technical Specifications
Last Updated: 2026-10-25
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | HC2421T |
| Category | Hobby |
| Performance | |
| Torque |
7.4V
90.30 oz-in
6.50 kg-cm
0.6 N-m
6.0V
76.40 oz-in
5.50 kg-cm
0.5 N-m
Above Average
|
| Speed |
7.4V
0.06 sec/60°
1,090.9 deg/s
181.8 RPM
6.0V
0.07 sec/60°
923.1 deg/s
153.8 RPM
Top 10%
|
| Running Current |
7.4V
2.500 A
2,500 mA
6.0V
2.200 A
2,200 mA
Bottom 10%
|
| Physical | |
| Weight | 1.23 oz35.0 gBelow Average |
| Dimensions |
L 1.40 in W 0.59 in H 1.10 in L 35.6 mm W 15.0 mm H 27.9 mm |
| Case Material | Aluminum |
| Drivetrain | |
| Motor Type | Coreless |
| Motor Drive | FET |
| Gears | Metal |
| Rotation Mode | Positional |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Direction | Counterclockwise |
| Rotational Range | 55° |
| Pulse Width | 1500-2100 µs |
| Neutral Position | 1500 µs |
| Dead Band | 1 µs |
| Angle Sensor | Potentiometer |
| Control System | PWM |
| Electrical & Environment | |
| Operating Voltage | 6–7.4 V |
| Temperature | -20–60 °C-4–140 °F |
| Water Rating | Waterproof |
| Idle Current | 0.280 A280 mA |
| Connectivity | |
| Connector | JR (Universal) |
| Wire Length | 180 mm7.09 in |
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 71% of 290 Digital Mini servos at 6.0V |
| Speed | Top 10% Faster than 93% of 293 Digital Mini servos at 6.0V |
| Weight | Below Average Lighter than 17% of 505 Digital Mini servos |
| Running Current | Bottom 10% Lower draw than 5% of 41 Digital Mini servos at 6.0V |
Performance Analysis
| Torque Density | 2.1829 oz-in/g Stronger than 44% of 286 Digital Mini servos |
| Torque-to-Volume Ratio | 84.09 oz-in/in³ Denser torque than 54% of 288 Digital Mini servos |
| Speed-to-Weight | 0.43956 (1/sec·g) Faster than 72% of 289 Digital Mini servos |
| Speed-Torque Trade-off | 4.97 Better balanced than 31% of 288 Digital Mini servos |
| Idle-to-Running Current Ratio | 0.127 Lower idle draw than 20% of 21 Digital Mini servos |
| Torque Gain per Volt | 13.00%/V More voltage-responsive (torque) than 23% of 257 Digital Mini servos |
| Speed Gain per Volt | 12.98%/V More voltage-responsive (speed) than 30% of 262 Digital Mini servos |
| Voltage Range Width | 1.4 V Wider voltage range than 39% of 405 Digital Mini servos |
| Dead-Band-to-Pulse-Width Ratio | 0.0017 Finer dead band than 41% of 104 Digital Mini servos |
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