KST A12-S Wing Servo - 13.8Kg.cm 0.08s 32.0g 12mm

The KST A12-S servo uses a magnetic (hall effect) sensor to provide position feedback, replacing the troublesome sliding contact potentiometer used in most sevos. This improves the reliability of the servo enormously, while also proviing better accuracy and resolution. The A12-S also benefits from an ultra-efficient 7 phase coreless motor, a hardened steel gear train, aluminum case, slow start, low current consumption and constant power output. These make it perfect for high performance gliders, larger electric models and jets.

This servo uses a mini 25 tooth (Futaba) output spline for maximum compatibility with the large variety of aftermarket control horns. Supplied accessories include two strong red nylon output arms, and three normal strength white nylon output arms.

KST A12-S Features

• Magnetic position sensor
• 7 phase coreless motor
• 12 mm body for stronger gears and improved toughness
• Excellent 13.5 Kg.cm torque
• Compact and light weight design
• Excellent torque and speed
• Wide 5S NiMH to 2S LiPo voltage range
• Excellent heat dissipation
• 7075 Alloy casing
• Hardened Steel gears
• Designed for high performance RC Gliders and Helis

KST A12-S Wing Servo Specifications
Body dimensions	30.0 mm wide x 12.0 mm thick x 35.5 mm high	1.18" wide x 0.47" thick x 1.40" high
Max dimensions	42.0 mm wide x 12.0 mm thick x 47.0 mm high	1.65" wide x 0.47" thick x 1.85" high
Stall torque (6V)	11.2 Kg.cm	156 oz.in
Stall torque (7.4V)	13.1 Kg.cm	182 oz.in
Stall torque (8.4V)	13.8 Kg.cm	192 oz.in
Weight	32 g	1.13 oz
Lead length	15 cm	5.9 in
Operating speed (6V)	0.11 sec/60°
Operating speed (7.4V)	0.09 sec/60°
Operating speed (8.4V)	0.08 sec/60°
Operating voltage	6V to 8.4V
Operating temperature	-10 to +60 ºC °C
Bearings	2 ball bearing
Gear material	Hardened steel
Case material	Aluminium alloy
Motor type	7 phase coreless
Working frequency	333 Hz
Dead band/resolution	1 µs
Pulse width for ± 60º	900 - 2100 µs
Digital	Yes
Programmable	No
Position feedback	Magnetic
Supplied accessories	2 plastic output arms, 2 arm retaining screw, 2 mouning screws
Optional accessories	KST 25T-6 Heavy Duty Output Arms, KST 25T-6C Metal Servo Output Arm