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Technical Specifications
Last Updated: 2026-09-14| Identity | |
| Brand |  |
| Product Number | SAVSC0251MG |
| Category | Hobby |
| Performance | |
| Torque |
7.4V
347.20 oz-in
25.00 kg-cm
2.5 N-m
6.0V
277.70 oz-in
20.00 kg-cm
2.0 N-m
Average
|
| Speed |
7.4V
0.15 sec/60°
400.0 deg/s
66.7 RPM
6.0V
0.17 sec/60°
352.9 deg/s
58.8 RPM
Below Average
|
| Running Current |
7.4V
0.150 A
150 mA
6.0V
0.120 A
120 mA
Above Average
|
| Stall Current | 4.8–5.9 A4800–5900 mABelow Average |
| Physical | |
| Weight | 2.15 oz61.0 gAverage |
| Dimensions |
L 1.604 in W 0.787 in H 1.709 in L 40.7 mm W 20.0 mm H 43.4 mm |
| Case Material | Composite |
| Drivetrain | |
| Motor Type | DC |
| Gears | Metal |
| Gear Spline/Teeth | 25 T |
| Shaft Size | 6.0 mm |
| Rotation Mode | Positional |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Direction | Counterclockwise |
| Rotational Range | 120° |
| Mechanical Limit | 160° |
| Pulse Width | 800-2200 µs |
| Neutral Position | 1500 µs |
| Dead Band | 5 µs |
| Refresh Rate | 360 Hz |
| Angle Sensor | Potentiometer |
| Control System | PWM |
| Electrical & Environment | |
| Operating Voltage | 6–7.4 V |
| Power Source | External |
| Regulator Type | Direct |
| Temperature | -10–50 °C14–122 °F |
| Certification | CE |
| Idle Current | 0.005 A5 mA |
| Connectivity | |
| Connector | JR (Universal) |
| Wire Length | 300 mm11.81 in |
| Origin | |
| Country of Origin | Taiwan |
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 63% of 1043 Digital Standard servos at 6.0V |
| Speed | Below Average Faster than 27% of 1041 Digital Standard servos at 6.0V |
| Weight | Average Lighter than 57% of 1902 Digital Standard servos |
| Running Current | Above Average Lower draw than 82% of 173 Digital Standard servos at 6.0V |
| Stall Current | Below Average Lower draw than 17% of 539 Digital Standard servos |
Performance Analysis
| Shaft Power | 3.02–4.28 W |
| Power Density | 1.984 W/in³ More power-dense than 44% of 1759 Digital Standard servos |
| Torque Density | 4.5525 oz-in/g Stronger than 70% of 1036 Digital Standard servos |
| Torque-to-Volume Ratio | 128.72 oz-in/in³ Denser torque than 56% of 1042 Digital Standard servos |
| Speed-to-Weight | 0.09643 (1/sec·g) Faster than 31% of 1033 Digital Standard servos |
| Speed-Torque Trade-off | 47.21 Better balanced than 73% of 1031 Digital Standard servos |
| Current-per-Torque Ratio | 0.0212 A/oz-in More efficient than 29% of 315 Digital Standard servos |
| Idle-to-Running Current Ratio | 0.042 Lower idle draw than 68% of 112 Digital Standard servos |
| No-Load vs Stall Current Spread | 49.17 Narrower current spread than 15% of 132 Digital Standard servos |
| Torque Gain per Volt | 17.88%/V More voltage-responsive (torque) than 70% of 850 Digital Standard servos |
| Speed Gain per Volt | 9.53%/V More voltage-responsive (speed) than 15% of 871 Digital Standard servos |
| Voltage Range Width | 1.4 V Wider voltage range than 38% of 1539 Digital Standard servos |
| Dead-Band-to-Pulse-Width Ratio | 0.0036 Finer dead band than 5% of 468 Digital Standard servos |
Notes
The specs for this servo are for the most recent version - the SC-0251MG+, which was preceded by the SC-0251 with plastic gears and SC0251MG with metal gears. The plus version adds Soft Start and Sanwa SSR compatibility.
Similar Active Servos
Other Versions
This model has 2 other versions. Only specs that differ are shown.
SC-0251
Discontinued- Length 1.60236 in
- Width 0.771654 in
- Height 1.66929 in
- Motor Type Brushed
- Gears Plastic
- Case Material Plastic
- Op. Voltage Min 4.8 V
- Op. Voltage Max 6 V
- Stall Current 3.2 A
- Product Number —
- Torque @ 6V 222.2 oz-in
- Speed @ 6V 0.18 sec/60°
SC-0251MG
Discontinued- Length 1.602 in
- Width 0.772 in
- Height 1.669 in
- Motor Type Brushed
- Gears Metal
- Case Material Plastic
- Op. Voltage Min 4.8 V
- Op. Voltage Max 6 V
- Stall Current 3.2 A
- Product Number SC-0251MG
- Torque @ 6V 222.2 oz-in
- Speed @ 6V 0.18 sec/60°
Reviews (3)
-
Trevor W
March 2, 2019Application(s): Large Scale Aerobatic Planes
Comments: Very good servo. Just a pity about the pathetic servo arms shipped with servo. With servo mounted on side the servo arms barely extend past the servo. This forces a person to buy longer servo arms which are expensive.
AfricanRc
November 24, 2016Application(s): buggy steering WITH OS .30
Comments: USE WITH SAVOX SC1252MG FOR THE THROTTLE. GOOD STEERING RESPONSE ON A LONG TRACK WITH WIDE CORNERS
Calgar
July 4, 2014Application(s): Slash 4x4 + Axial SCX10
Comments: Replaced 1258tg servo with this one in my Slash 4x4 and it works like a charm. Fast enough for tracks I've been in and good torque. Also using this one in my SCX10. No complains.