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V012024 • © 2024 Portescap. Specifications subject to change without notice.Can Stack Stepper MotorsDimensions in mm [inches]Electrical Data 20M020D• • Unit 1U Unipolar 2U Unipolar 1B Bipolar 2B Bipolar1 Operating Voltage 5 12 5 12 VDC2 Resistance per Phase, ± 10% 20.0 115.2 20.0 115.2 Ohms3 Inductance per Phase, typ 3.9 20.3 7.8 52.8 mH4 Rated Current per Phase * 0.25 0.10 0.25 0.10 ACoil Independent Parameters5 Holding Torque, MIN * 7.8 (1.11) 7.8 (1.11) 11.0 (1.56) 11.0 (1.56) mNm (oz-in)6 Detent Torque, Max 3.53 (0.5) mNm (oz-in)7 Rotor Inertia 0.41 (0.00224) gcm2 (oz-in²)8 Step Angle 18.0 Degree9 Absolute accuracy 2 ph. On, Full step ± 1.5 Degree10 Steps per Revolution 2011 Ambient Temp Range (operating) -20 to +70 (-4 to +158) °C (°F)12 Maximum Coil Temperature 130 (266) °C (°F)13 Bearing Type Sintered Bronze Sleeve14 Insulation Resistance at 500 VDC 100 Mohms15 Dielectric Withstanding Voltage 450 VRMS for 2 seconds VAC16 Weight 23.5 (0.832) g (oz)17 Leadwire AWG 28, UL 142920M020D Ø 20 mm • RoHS Compliant • 11 mNmNote: All motor data values at 20° C unless otherwise specified* Engergize at rated current, 2-Phase On01234500.10.20.30.40.50.60.70 100 200 300 4000 300 600 900 1200 rpmoz inpps20M020D1U Torque vs Speed5 vdc, full step, unipolar voltage drive 20M020D1U 20M020D1UPull-Out Torque Pull-In TorquemNm0123456700.10.20.30.40.50.60.70.80.90 100 200 300 4000 300 600 900 1200 rpmoz inpps20M020D1B Torque vs Speed5 vdc, full step, bipolar voltage drive 20M020D1B 20M020D1BPull-Out Torque Pull-In TorquemNm16.38 [0.645] MAXØ20.5 [0.807] MAX8.50±0.38 [0.335±0.015]1.50±0.05 [0.059±0.002]2X Ø2.20±0.05[Ø0.087±0.002]25.0±0.13[0.984±0.005]31.0±0.2[1.220±0.008]6.35±1.50 [0.25±0.06]127.00±6.35[5.00±0.25]+0.000-0.010 [Ø0.0590 ] +0.0000 Ø1.500 -0.0004+0.00-0.05 [Ø0.236 ] +0.000 Ø6.00 -0.002UNIPOLAR COILYELLOW ORANGE BROWN BLACK RED/GREEN+ - + - ++ - - + +- + - + +- + + - ++ - + - +VIEWED FROM OUTPUT SHAFTBIPOLAR COILRED GRAY YELLOW BLACK+ - + -+ - - +- + - +- + + -+ - + -VIEWED FROM OUTPUT SHAFTbrowngreenblackyellow red orangeyellowblackred graybrowngreenblackyellow red orangeyellowblackred grayCWCCWCWCCW155
