This part is a kind of semiconductor called 17HS4402.

Function of this product has 2 Phase Hybrid Stepper Motor.

Manufacturers : MotionKing

Image and pinout :

Some of the text within the PDF file :

MotionKing (China) Motor Industry Co., Ltd. HB Stepper Motor Catalog 2 Phase Hybrid Stepper Motor 17HS series-Size 42mm(1.8 degree) Wiring Diagram: UNI-POLAR(6 LEADS) BI-POLAR(4LEADS) Electrical Specifications: Series Model Step Angle (deg) Motor Length (mm) Rated Phase Phase Current Resistance Inductance (A) (ohm) (mH) 17HS2408 1.8 28 0.6 8 10 17HS3401 1.8 34 1.3 2.4 2.8 17HS3410 1.8 34 1.7 1.2 1.8 17HS3430 1.8 34 0.4 30 35 17HS3630 1.8 34 0.4 30 18 17HS3616 1.8 34 0.16 75 40 17HS4401 1.8 40 1.7 1.5 2.8 17HS4402 1.8 40 1.3 2.5 5.0 17HS4602 1.8 40 1.2 3.2 2.8 17HS4630 1.8 40 0.4 30 28 17HS8401 1.8 48 1.7 1.8 3.2 17HS8402 1.8 48 1.3 3.2 5.5 17HS8403 1.8 48 2.3 1.2 1.6 17HS8630 1.8 48 0.4 30 38 *Note: We can [ ... ]

17HS4402 PDF Datasheet Download