KST X08-Plus Servo – 5.3Kg.cm 0.09s 9.0g 8mm

The KST X08 Plus is a very light (9.5 g) low/medium/high voltage metal cased servo. It is based on the well regarded KST X08 V5 servo but with a larger motor fitted.

It is especially good for ailerons on F5J gliders, electric racers, and all models with thin flying surfaces. Despite being only 8 mm thick the powerful coreless DC motor and gearing provide good torque and high speed. The X08 Plus can be operated from a voltage as low as 3.8V (1S LiPo) or as high as 8.4V (2S LiPo). KST servos have excellent geartrain machining tolerances, and this servo is completely slop free, and equal to products costing twice as much. Despite not having an -MG moniker this servo has metal gears, and is very tough.

The KST X08 Plus’s high torque, good speed, and 8mm thinness make it suitable for many high performance glider, pylon racers and EDF applications. With up to 5.3 kg.cm torque the KST X08 is appropriate for F5J, F5D, F3J and many types of high performance models.

The extreme reliability and performance of these servos also makes them very suitable for use in film and motion picture industry special effect departments. They are also used in robotic, drone, UAV, UAS, academic research, military, and other highly demanding applications.

KST X08-Plus Servo Specifications
Body dimensions	23.5 mm wide x 8.0 mm thick x 16.8 mm high	0.93″ wide x 0.31″ thick x 0.66″ high
Max dimensions	29.5 mm wide x 8.0 mm thick x 31.0 mm high	1.16″ wide x 0.31″ thick x 1.22″ high
Stall torque (3.8V)	2.4 Kg.cm	33 oz.in
Stall torque (6V)	3.9 Kg.cm	54 oz.in
Stall torque (8.4V)	5.3 Kg.cm	74 oz.in
Weight	9 g	0.32 oz
Lead length	10 cm	3.9 in
Operating speed (3.8V)	0.18 sec/60°
Operating speed (6V)	0.15 sec/60°
Operating speed (8.4V)	0.09 sec/60°
Operating voltage	3.8V to 8.4V
Operating temperature	-20 to 65 °C
Bearings	2 Ball bearings
Gear material	Aluminium alloy / copper-bronze alloy
Case material	Aluminium alloy
Motor type	Coreless DC motor
Working frequency	333 Hz
Dead band/resolution	2 µs
Pulse width for ± 60º	1000-2000 µs
Digital	Yes
Programmable	No
Position feedback	Potentiometer
Supplied accessories	3 plastic output arms, 1 arm retaining screw, 4 mounting screws
Optional accessories	Ply Frame for KST X08, Pulley For KST X08, KST X08 Servo Arm Set, Frame with plain bearing for the KST X08, Integrated Drive System/Mono for KST X08