The Kpower M09YY is a 12 g metal-gear micro servo for RC aircraft, UAV mechanisms and micro robots. Its compact 23 × 12 × 24.3 mm body, mounting tabs and 270 mm three-wire lead support installation in small mechanisms. Operating from 4.8–8.4 V, it provides voltage-dependent torque and speed, with a DC brushed motor, potentiometer position sensing and a 900–2100 μs control-pulse range.
Features
Metal gearing and a splined output shaft for transmitting motion to a servo horn.
Opposing mounting tabs with mounting holes for securing the servo.
DC brushed motor with potentiometer position sensing and an 8 μs dead band.
Plastic case, two ball bearings and a 270 mm three-wire lead.
120° travel angle, with customization stated for the travel range.
Specifications
Parameter
Value
Model
Kpower M09YY
Product type
Metal-gear micro servo
Weight
12 g
Dimensions
23 × 12 × 24.3 mm
Operating voltage
4.8–8.4 V
Stall torque
5.5 kg (unit as supplied; lever-arm length unspecified)
Rated torque
1.4 kg (unit as supplied; lever-arm length unspecified)
No-load speed
0.13 s
Travel angle range
120°; customizable
Horn gear spline
25T, Ø5 mm
Gear material
Metal
Motor
DC brushed
Protocol
PWM / TTL / RS-485
No-load current
1300 mA
Position sensor
Potentiometer
Case material
Plastic
Ball bearings
2BB
Working frequency
50–333 Hz
Operating temperature
−10 to 50 °C
IP rating
IP42
Dead band
8 μs
Control-pulse range
900–2100 μs
Lead
Three-wire
Wire length
270 mm
Voltage-Dependent Torque and Speed
Parameter
At 5 V
At 8.4 V
Torque
3.5 kg·cm
5.5 kg·cm
Speed
0.16 s/60°
0.13 s/60°
Applications
RC aircraft and other RC models: actuate small control linkages using the compact 12 g servo and its mounting tabs.
UAV mechanisms: position small onboard mechanisms where the compact body and 270 mm lead help with installation and cable routing.
Micro robots: drive small joints or linkages using metal gearing and potentiometer-based position sensing.
Intelligent medical-device mechanisms: provide compact mechanical positioning within the stated electrical and operating limits.
The servo has a three-wire lead. The M09YY lists R/C aircraft models as an application.Twelve Kpower drive and control application examples spanning robotics, automation, drones and agriculture
Features and Design
M Series servo feature graphic with metal gears, response and potentiometer calloutsCustom servo development graphic with housing, gear, shaft and connector examples
Specifications and Performance
The M09YY has a stated weight of 12 g. The M09YY torque is 3.5 kg.cm at 5 V.General servo selection reference for angles, speeds, voltage classes and dead bandsCLS88WP speed and current versus torque chart at 7.4V with operating-duration zones
Additional Product Details
Five servo horn shapes labeled Flat, Cross, Round, Star and SingleODM development workflow from requirements assessment to mass production
Setup and Use
Generic servo pulse-width diagram mapping five input pulse widths to output shaft anglesExploded servo assembly with component labels and a checklist of servo selection criteria
Interfaces and Connections
Three-wire servo connector diagram identifying brown ground, red supply and orange signal