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Technical Specifications
Last Updated: 2026-09-14Identity
Performance
Physical
Drivetrain
Control & Signal
Electrical & Environment
Connectivity
Origin
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| 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
|
| 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
|
| Running Current |
7.4V
0.150 A
150 mA
6.0V
0.120 A
120 mA
|
| Stall Current | 4.8–5.9 A4800–5900 mA |
| Physical | |
| Weight | 2.15 oz61.0 g |
| Dimensions |
L 1.60 in W 0.79 in H 1.71 in L 40.7 mm W 20.0 mm H 43.4 mm |
| Case Material | Composite |
| Drivetrain | |
| Motor Type | DC |
| Motor Drive | (add) |
| Gears | Metal |
| Gear Spline/Teeth | 25 T |
| Shaft Size | 6.0 mm |
| Rotation Mode | Positional |
| Rotation/Support | Dual Bearings |
| Backlash | (add) |
| Control & Signal | |
| Modulation | Digital |
| Direction | Counterclockwise |
| Rotational Range | 120° |
| Mechanical Limit | 160° |
| Pulse Cycle | (add) |
| Pulse Width | 800-2200 µs |
| Neutral Position | 1500 µs |
| Dead Band | 5 µs |
| Refresh Rate | 360 Hz |
| Angle Sensor | Potentiometer |
| Control System | PWM |
| Programmable | (add) |
| Signal Voltage | (add) |
| Electrical & Environment | |
| Operating Voltage | 6–7.4 V |
| Power Source | External |
| Regulator Type | Direct |
| Temperature | -10–50 °C14–122 °F |
| Water Rating | (add) |
| 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.
Performance Analysis
| Shaft Power | 3.02–4.28 W |
| Torque Density | 4.5525 oz-in/g Stronger than 71% of the 831 Digital Standard servos in the database |
| Torque-to-Volume Ratio | 128.72 oz-in/in³ Denser torque than 58% of the 842 Digital Standard servos in the database |
| Power Density | 1.984 W/in³ More power-dense than 45% of the 1643 Digital Standard servos in the database |
| Speed-to-Weight | 0.09643 (1/sec·g) Faster than 30% of the 820 Digital Standard servos in the database |
| Speed-Torque Trade-off | 47.21 Better balanced than 74% of the 825 Digital Standard servos in the database |
| Current-per-Torque Ratio | 0.0212 A/oz-in More efficient than 31% of the 230 Digital Standard servos in the database |
| Idle-to-Running Current Ratio | 0.042 Lower idle draw than 72% of the 26 Digital Standard servos in the database |
| No-Load vs Stall Current Spread | 49.17 Narrower current spread than 38% of the 48 Digital Standard servos in the database |
| Torque Gain per Volt | 17.88%/V More voltage-responsive (torque) than 69% of the 672 Digital Standard servos in the database |
| Speed Gain per Volt | 9.53%/V More voltage-responsive (speed) than 15% of the 686 Digital Standard servos in the database |
| Voltage Range Width | 1.4 V Wider voltage range than 38% of the 1268 Digital Standard servos in the database |
| Dead-Band-to-Pulse-Width Ratio | 0.0036 Finer dead band than 5% of the 326 Digital Standard servos in the database |
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.
Quick Actions
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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
- 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
- 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.