Size 11 Unipolar 90 Degree Stepper Motor Specification Step Angle Step Rate Voltage Power Km Running Torque Holding Torque Kt Holding Torque Unpowered Torque Phase Resistance Phase Inductance Number of Phases/Poles Redundant Windings Weight -101 90 150 24 8.5 0.76 1.2 6.25 2.2 0.55 68 15.4 4/2 No 0.35 -102 90 150 12 8.5 0.76 1.2 3.1 2.2 0.55 18 5.6 4/2 No 0.35 -201 90 150 17 8.5 0.54 0.85 3.1 1.6 0.55 34 7,7 4/2 Yes 0.35 -202 90 150 8.5 8.5 0.54 0.85 1.6 1.6 0.55 8.5 3.8 4/2 Yes 0.35 Units degrees pps VDC watts in-ozâwatts in-oz in-oz/amp in-oz in-oz ohms mH phase/poles windings pounds For the very latest specifications visit www.aeroflex.com/Motion Basis Nominal Maximum Nominal Nominal Nominal Minimum Nominal Minimum Minimum Nominal Nominal By Design By Design Nominal