Overview
The KST SV08-12 is an SHV micro servo motor designed for compact, high-voltage control systems, including RC helicopters and gliders. It features a coreless DC motor, hardened steel gears, a CNC aluminum alloy housing, and dual ball bearings, with programmable support and a soft start function.
Key Features
- SHV (Super High Voltage) micro servo
- Rated voltage: DC 12.0 V; operating range: DC 8.40 V - 13.0 V
- Stall torque up to 8.00 kgf.cm @ 13.0 V
- No-load speed (60deg rotation) down to 0.09 sec @ 13.0 V
- Programmable with soft start function
- Coreless DC motor, hardened steel gear train
- 2 BB (double ball bearings)
- CNC aluminum case for fast heat dissipation
- Two installation methods supported: horizontal tab and standard tab
- Supports up to 3S LiPo battery direct drive (stated feature)
Specifications
| Model | SV08-12 |
| Performance & Electrical Ratings | |
| Rated Voltage | DC 12.0 V |
| Operating Voltage Range | DC 8.40 V - 13.0 V |
| Stall Torque | 5.00 kgf.cm @ 8.40 V; 7.00 kgf.cm @ 12.0 V; 8.00 kgf.cm @ 13.0 V |
| No-load Speed (60deg Rotation) | 0.15 sec @ 8.40 V; 0.10 sec @ 12.0 V; 0.09 sec @ 13.0 V |
| Start Current | 1.18 A @ 12.0 V |
| Rated Torque | 2.0 kgf.cm @ 12.0 V |
| Rated Current | 0.35 A @ 12.0 V |
| Rated Speed | 0.13 sec/60deg @ 12.0 V |
| Working Frequency | 1520 us / 333 Hz |
| Control Specifications | |
| Default Travel Angle | +/-60 deg (Total 120 deg) |
| Control Signal Voltage Level | HIGH: 3.3-5.0 V (min./max.); LOW: 0.0-1.5 V (min./max.) |
| Control Pulse Width Range | 900 us - 2100 us |
| Calibrated Pulse Width for Position | -60 deg: 1000 us; 0 deg: 1500 us; +60 deg: 2000 us |
| Soft Start Function / Programmable Capability | Programmable / Yes |
| Internal Characteristics | |
| Motor Type | Coreless DC Motor |
| Gear Train Material | Hardened Steel Gears |
| Position Feedback Sensor | Potentiometer |
| Ball Bearing Configuration | 2 BB (Double Ball Bearings) |
| Physical & Environmental | |
| Housing Material | Aluminum Alloy |
| Housing Dimensions | 23.5 x 8 x 25.25 mm +/- 0.2 mm |
| Weight | 11 g +/- 10% |
| Operating Temperature Range | -10 deg C ~ +65 deg C |
What's Included
- 1 x SV08-12 servo
- 4 x plastic servo horn
- 1 x servo horn screw
- 4 x mounting screw
Applications
- RC helicopters and gliders
- Humanoid robots
- Robotic arms
- Exoskeletons
- Quadruped robots
- AGV vehicles
- ARU robots
Manuals
Details







