2A Nema 17 42mm 2 Phase Bipolar Stepper Motor

Basic Information
Place of Origin: JIANGSU,CHINA
Brand Name: Prostepper
Certification: CE.ISO.ROHS.SGS
Model Number: PST42H241-4P20
Minimum Order Quantity: 10pcs
Price: USD7.8-10.7/PCS
Packaging Details: 38.5*24*23
Delivery Time: 7-25 work days
Payment Terms: T/T, Western Union, L/C
Supply Ability: 250000pcs per/ month
Motor Type: 42mm Hybrid Stepper Motor Inductance: 2mH/Phase
Motor Current: 2A Dielectric Strength: 500VDC For 1 Minute
Motor Length: 41mm Weight: 0.3kg
High Light:

42mm 2 Phase Bipolar Stepper Motor


Nema 17 2 Phase Bipolar Stepper Motor


42mm small stepper motor


42mm 2 phase hybrid stepper motor NEMA17 Uni-Polar 1.8 step motor




high precision                         

high torque


medium size

Stepping Accuracy: ± 5%

Resistance Accuracy: ± 10%

Inductance Accuracy: ± 20%

Temperature Rise: 80°C Max.

Ambient Temperature: -20°C ... +50°C

Insulation Resistance: 100MOhm min. 500V DC

Withstand: 500V AC, 1 Minute

Mode No PST35H236-4P10





Holding Torque 0.18N.m 0.18N.m 0.16N.m
Related Current 1A/Phase 1.5A/Phase 0.6A/Phase
Resistance 4.6Ω /Phase 2.1Ω /Phase 6.6Ω /Phase
Inductance 5MH/Phase 2.1MH/Phase 9.5MH/Phase
Inertia 20g.cm2 20g.cm2 23g.cm2
Weight 0.21kgs 0.21kgs 0.2kgs
Length 36.5mm 36.5mm 31mm
Connection P P P


Mode No PST42H241-4P12



PST42H249-4P12 PST42H249-4P20
Holding Torque 0.4N.m 0.4N.m 0.48N.m 0.48N.m
Related Current 1.2A/Phase 2A/Phase 1.2A/Phase 2A/Phase
Resistance 2.5 Ω/Phase 1.05Ω /Phase 3.1Ω/Phase 1.35Ω/Phase
Inductance 5.5MH/Phase 2MH/Phase 8MH/Phase 2.9MH/Phase
Inertia 54g.cm2 54g.cm2 77g.cm2 77g.cm2
Weight 0.3kgs 0.3kgs 0.36kgs 0.36kgs
Length 41mm 41mm 49mm 49mm
Connection P P P P

2A Nema 17 42mm 2 Phase Bipolar Stepper Motor 0





Product description of hybrid stepper motor



 2A Nema 17 42mm 2 Phase Bipolar Stepper Motor 1   2A Nema 17 42mm 2 Phase Bipolar Stepper Motor 2


2A Nema 17 42mm 2 Phase Bipolar Stepper Motor 3

2A Nema 17 42mm 2 Phase Bipolar Stepper Motor 4


The winding on this article is a 4 Wire Bipolar.

0.9° and 1.8° Hybrid Stepper Motors

1.8° Step Angle,The motors are directly compatible with the stepper motor drive boards and also drive either motor (if required) in the half step mode i.e. 0.9° per step resulting in higher resolution, greater performance stability and faster stepping rates. Direction, velocity, acceleration/deceleration can be controlled by a stepper motor controller.,Applying the correct electrical pulse sequence to the windings of the stepper motor results in a 1.8° step angle rotation of the spindle (i.e. 200 steps per revolution). When correctly loaded and driven these motors will produce discrete output steps. The number of steps and speed of rotation are determined by the number of pulses and frequency of the input signal. This provides an ideal method for speed and position control. The motors are directly compatible with stepper motor drive boards.,

Applications include:

  1. Robotics
  2. Paper feed mechanisms
  3. Teletype printers
  4. Small machine tools
  5. Computer peripherals
  6. X-Y plotters

Stepper Motor Control by Varying Clock Pulses


Stepper motor control circuit is a simple and low-cost circuit, mainly used in low power applications. The circuit is shown in the figure,


A stepper motor is an electromechanical device it converts electrical power into mechanical power. Also, it is a brushless, synchronous electric motor that can divide a full rotation into an expansive number of steps. The motor’s position can be controlled accurately without any feedback mechanism, as long as the motor is carefully sized to the application. Stepper motors are similar to switched reluctance motors.


The stepper motor uses the theory of operation for magnets to make the motor shaft turn a precise distance when a pulse of electricity is provided. The stator has eight poles, and the rotor has six poles. The rotor will require 24 pulses of electricity to move the 24 steps to make one complete revolution. Another way to say this is that the rotor will move precisely 15° for each pulse of electricity that the motor receives.


Quality assurance:

1. All stepper motors have CE and RoHS certification
2. All motors are tested by a toasting machine for 72 hours
3. All the motors will be shipped after testing



Contact Details
Lucille Zhang

Phone Number : 18106129911

WhatsApp : +18106129911