5V 4-Phase Stepper Motor (28BYJ-48-5V) Expand

5V 4-Phase Stepper Motor (28BYJ-48-5V)



This small 5-Wire stepper motor often used in Air Conditioner Louver, Small Cooling/Heating Fans etc is a makers favourite for various small Arduino based projects. 

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  • The rotation angle of the motor is proportional to the input pulse.
  • The motor has full torque at standstill(if the windings are energized)
  • Precise positioning and repeatability of movement since good stepper motors have an accuracy of – 5% of a step and this error is non cumulative from one step to the next.
  • Excellent response to starting/stopping/reversing.
  • Very reliable since there are no contact brushes in the motor. Therefore the life of the motor is simply dependant on the life of the bearing.
  • The motors response to digital input pulses provides open-loop control, making the motor simpler and less costly to control.
  • It is possible to achieve very low speed synchronous rotation with a load that is directly coupled to the shaft.
  • A wide range of rotational speeds can be realized as the speed is proportional to the frequency of the input pulses.


Technical Specifications:

  • Model

– 28BYJ-48

  • Rated Voltage

– 5V DC

  • Number of Phases

– 4

  • Speed Variation Ratio

– 1/64

  • Stride Angle

– 5.625°

  • Frequency

– 100Hz

  • DC Resistance

– 50ohms ±7%(25°C)

  • Idle In-Traction Frequency

– >600Hz

  • Idle Out-Traction Frequency

– >1000Hz

  • In-Traction Torque

– >34.3mN.m(120Hz)

  • Self-Positioning Torque

– >34.3mN.m

  • Friction Torque

– 600-1200gf.cm

  • Pull in Torque

– 300gf.cm

  • Insulated Resistance

– >10MΩ(500V)

  • Insulated Electricity Power

– 600V AC / 1mA / 1s

  • Insulation Grade

– A

  • Rise in Temperature

– <40K (120Hz)

  • Noise

– <35dB (120Hz, No Load, 10cm)


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