Size 8 Unipolar 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 12 8.5 0.95 1.2 7.9 2.7 0.5 68 11 4/2 No 0.16 -201 90 150 12 8.5 0.95 1.2 4 2.7 0.5 18 11 4/2 Yes 0.16 Units degrees pps VDC watts in-ozâwatts in-oz in-oz/amp in-oz in-oz ohms mH phase/poles windings pounds Basis Nominal Maximum Maximum Nominal Nominal Minimum Nominal Minimum Minimum Nominal Nominal By Design By Design Nominal For the very latest specifications visit www.aeroflex.com/Motion