This post explains for the stepping motor.
The Part Number is 103H7126.
The function of this semiconductor is 2-phase Stepping Motor.
Manufacturer: Sanyo
Images
Description
103H7126 is 2-phase Stepping Motor. A 2-phase stepping motor, also known as a bipolar stepper motor, is a type of electric motor commonly used in precision positioning applications, robotics, 3D printers, CNC machines, and various other devices that require accurate and controlled rotational movement. The term “2-phase” refers to the fact that the motor has two sets of windings, each driven by a separate electrical phase.
Sanyo Denki servo system products are used in a broad range of industrial applications including robots, packaging machinery, semiconductor machinery.

Stepper motors, including 2-phase stepping motors, offer precise control and positioning capabilities, making them a popular choice in applications that require controlled motion and positioning accuracy
103H7126 PDF Datasheet
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