This part is a kind of semiconductor called SPI-130-xx.

Function of this product has SMD High Current Power Induvtor.

Manufacturers : ISU

Image and pinout :

Some of the text within the PDF file :

SMD High Current Power Inductor -Shield Type- SMD (Surface Mounting Device) Challenge the Future! Share the Future! SMD High Current Power Inductor (Shield) Advantage of SPI power inductor Low profile High current capability Low DCR Low temperature rise Increased thermal efficiency Low installing cost Reduced stray field emission Process 4.7uH ISU Ceramics 4.7uH ISU Ceramics Application Switcing-mode power supply High current DC-DC and AC-DC converters Voltage regulator module (VRM) Desktop and notebook PC Car Navigation system, VGA card, UMPC Potable electronics Patent Coil integrated Inductor Korea Registration No. : 10-0655418 SPI-070-24 SERIES High Current Power Inductor 1.Specifications Indu c tanc e ( μH) 0.47 0.68 0.82 1.00 1.50 2 [ ... ]

SPI-130-xx PDF Datasheet Download