KST CM12 Mini Digital Servo – Compact Size, Outstanding Performance
The KST CM12 is an ultra-versatile mini servo designed to deliver exceptional precision and power across a wide range of RC applications. Whether you're building a 1:12 or 1:10 RC Pan Car, an aircraft, a boat, or a functional scale model, the CM12 provides the reliability and performance demanded by experienced hobbyists.
Operating from 3.7V up to 8.4V, the CM12 offers excellent flexibility, allowing it to perform optimally in virtually any setup.
Despite its remarkably compact dimensions, the CM12 delivers up to 7.5 kg·cm of torque at 8.4V. Its innovative hybrid aluminum/polycarbonate case combines strength with low weight, while the full aluminum upper case increases rigidity for maximum steering precision and improved heat dissipation.
Designed with versatility in mind, the housing supports both vertical and horizontal installation. The side mounting tabs can easily be removed when a low-profile installation is required.
A standout feature is the large 25T-6 output spline, providing exceptional strength, minimal backlash, and compatibility with standard 25T servo horns—even under demanding conditions.
Technical Specifications
- Operating Voltage: 3.7 – 8.4V
Torque
- 3.7V: 3.8 kg·cm
- 4.2V: 4.8 kg·cm
- 6.0V: 5.8 kg·cm
- 7.4V: 6.8 kg·cm
- 8.4V: 7.5 kg·cm
Speed (60°)
- 3.7V: 0.16 sec
- 4.2V: 0.13 sec
- 6.0V: 0.10 sec
- 7.4V: 0.09 sec
- 8.4V: 0.08 sec
Dimensions
- Length: 27.0 mm
- Width: 12.1 mm
- Height: 29.5 mm
- Weight: 22.0 g
Features
- Digital mini servo
- Coreless motor
- Hardened steel gears
- Dual ball bearings (2BB)
- 25T-6 output spline
- Potentiometer position sensor
- Programmable Soft Start
- Fully programmable using KST Tool #3 and KST Tool #5
- Signal: 1520µs / 333Hz (1000–2000µs)
- Not waterproof
At Aerobertics
At Aerobertics, we selected the KST CM12 because it combines compact dimensions, impressive torque, and outstanding precision in a lightweight package. Its wide voltage range and clever mounting design make it an excellent choice for competitive RC racers as well as demanding aircraft and scale model builders. If you're looking for a premium mini servo that delivers reliable performance without compromise, the CM12 is an excellent addition to your model.
Please always verify the servo specifications recommended by your model manufacturer before installation.
