Product overview
The Cysmodel CYS-S3120 is an all-metal digital servo for fixed-wing models, 380–450 helicopter swashplates, 1/16 scale model cars and robots. Its construction combines a coreless motor, metal gears and a single bearing, with a 21T output spline and a 180mm lead. The lead connections are brown/black for negative, red for positive and orange/white for signal. PWM signal control uses a neutral position of 1500usec, with reverse operation over a signal range of 1000usec ~ 2000 usec.
Operating from 6.0-7.4V, the CYS-S3120 delivers 3.5kg.cm torque at 6.0V and 4.5kg.cm at 7.4V. No-load travel takes 0.08sec/60° at 6.0V and 0.06sec/60° at 7.4V. The servo provides 90° total operating travel, with 45° to each side, and a control deadband of 2usec. At 6.0V, standby current is 10mA and no-load current is 20mA; at 7.4V, standby current is also 10mA and no-load current is 20mA.
