• KST A12-T digital servo motor with red and white aluminum case and 3-wire lead with plug
  • Side view of KST A12-T servo showing output spline/shaft and mounting tabs on aluminum case
  • Angled top view of KST A12-T servo with 3-wire connector lead, red center band and mounting ears
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KST

KST A12-T Digital Servo Motor, 7-Phase Coreless, 6.0-8.4V for Robots, Arms & RC Gliders

KST A12-T Digital Servo Motor, 7-Phase Coreless, 6.0-8.4V for Robots, Arms & RC Gliders

$94.99 USD
$94.99 USD
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Overview

KST A12-T is a digital servo motor designed for compact, lightweight actuation in robotics and RC platforms. It features a 7-phase coreless DC motor, contactless magnetic position sensing, hardened steel gears, and an aluminum alloy housing. The servo supports soft start and programmable functions, with HV operating range DC 6.0V to 8.4V.

Key Features

  • 7-phase coreless DC motor
  • Contactless magnetic sensor for position detection
  • Hardened steel gear train
  • 2BB (dual ball bearing) support
  • Aluminum alloy housing
  • Soft start function: Yes; Programmable function support: Yes
  • Performance callouts: 20 kgf.cm, 0.12 sec/60deg

Specifications

Rated Voltage DC 7.4V
Operating Voltage Range DC 6.0V - 8.4V
Output Torque 1.6 N.m @ 6.0V; 1.8 N.m @ 7.4V; 2.0 N.m @ 8.4V
Rotational Speed (60deg Rotation) 0.15 sec @ 6.0V; 0.13 sec @ 7.4V; 0.12 sec @ 8.4V
Working Frequency 1520 us / 333 Hz
Default Mechanical Travel Angle +/-60 deg (Total 120 deg)
Control Signal Voltage High level: Min. 3.3V, Max. 5.0V; Low level: Min. 0.0V, Max. 1.5V
Total Control Pulse Width Range 900 us - 2100 us
Position-Corresponding Pulse Width (-50 / 0 / +50 deg) 1000 us (-50 deg) / 1500 us (0 deg) / 2000 us (+50 deg)
Motor Type 7 Phases Coreless DC Motor
Gear Train Material Hardened Steel
Position Detection Sensor Contactless Magnetic Sensor
Ball Bearing Configuration 2BB (Dual Ball Bearing)
Housing Material Aluminum Alloy
Overall Housing Dimension 30 mm x 12 mm x 35.5 mm +/- 0.2 mm
Net Weight 32 g +/- 10%
Operating Temperature Range -10 deg C ~ +60 deg C

What's Included

  • 1 x A12-T HV Metal Servo
  • 2 x Plastic Servo Horn
  • 4 x Mounting Screw
  • 2 x Servo Horn Screw

Applications

  • Humanoid robots
  • Robotic arms
  • Exoskeletons
  • Quadruped robots
  • AGV vehicles
  • ARU robots
  • Large scale gliders
  • Open class GPS gliders
  • Large aerobatic gliders
  • Jet turbine

Manuals

Details

KST A12-T digital servo with 7‑phase coreless motor callouts for torque and speed, plus A12-S comparisonKST A12-T HV metal digital servo with lead, plus included plastic horns and mounting screws

Each A12‑T servo ships with two plastic horns and the mounting hardware for a clean, compact install in robots or RC airframes.