SY20STH30-0604A Pololu

Stepper Motor: Bipolar, 200 Steps/Rev, 2030mm, 3.9V, 0.6 A/Phase Bipolar stepper motor wires are terminated with bare leads. Bipolar stepper motor wiring diagram. Overview This small hybrid bipolar stepping motor has a 1.8 step angle (200 steps/revolution). Each phase draws 600 mA at 3.9 V, allowing for a holding torque of 180 g-cm (2.5 oz-in). The motor has four color-coded wires terminated with bare leads: black and green connect to one coil red and blue connect to the other. It can be controlled by a pair of suitable H-bridges (one for each coil), but we recommend using a bipolar stepper motor driver. Our 4 mm universal mounting hub can be used to mount objects on the stepper motors 4 mm- diameter output shaft. Specifications Size: 20 mm square 30 mm, not including the shaft (NEMA 8) Weight: 60 g (2 oz) Shaft diameter: 4 mm D Steps per revolution: 200 Current rating: 600 mA per coil Voltage rating: 3.9 V Resistance: 6.5 per coilHolding torque: 180 g-cm (2.5 oz-in) Inductance: 1.7 mH per coil Lead length: 30 cm (12 ) More specifications are available in the datasheet (51k pdf). Dimensions The following diagram shows the stepper motor dimensions in mm. The dimension labeled Length is 30 mm. The output D-shaft has a length of 15 mm and a 4 mm diameter with a section that is flattened by 0.5 mm. This shaft works with our 4 mm universal mounting hub. The inside of a bipolar stepper motor. Stepper Motor Applications Stepper motors are generally used in a variety of applications where precise position control is desirable and the cost or complexity of a feedback control system is unwarranted. Here are a few applications where stepper motors are often found: Printers CNC machines 3D printer/prototyping machines Laser cutters