Unipolar Bipolar Hybrid Stepper Motor 2.7V 1A/Phase 200 Step

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$14.95 ea

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  • Jameco Part no.: 2245319
  • Manufacturer: Pololu
  • Manufacturer no.: 1209
  • Web Exclusive
  • This item is discontinued and is not
    recommended for new designs.
# of units Price
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Unipolar/Bipolar Hybrid Stepper Motor 2.7V 1A/Phase 200 Step

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 not reasonable. This hybrid stepping motor has a 1.8° step angle (200 steps/revolution). Each phase draws 1 A at 2.7 VDC allowing for a holding torque of 1.4 kg-cm (20 oz-in). The motor has four color-coded wires terminated with bare leads allowing it to be controlled by both unipolar and bipolar stepper motor drivers, but we recommend using it as a bipolar stepper motor. 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).


  • Size: 35 mm square × 36 mm, not including the shaft (NEMA 14)
  • Weight: 180 g (6 oz)
  • Shaft diameter: 5 mm "D"
  • Steps per revolution: 200
  • Current rating: 1 A per coil
  • Voltage rating: 2.7 VDC
  • Resistance: 2.7 Ω per coil
  • Holding torque: 1.4 kg-cm (20 oz-in)
  • Inductance: 4.3 mH per coil
  • Lead length: (4x) 30 cm (12")
  • Output shaft supported by two ball bearings
  • Soyo mfg#: SY35ST36-1004A


  • Printers
  • CNC machines
  • 3D printer/prototyping machines (e.g. RepRap)
  • Laser cutters
  • Pick and place machines
  • Linear actuators
  • Hard drives

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