Item: Heavy Cooper PCB Board
Number of Layers: 12 Layer
Board thickness：4.0mm
Dimension：30.98*25.2mm
Raw material：FR4 EM827
Copper thickness on the board surface：140um
Copper thickness in the hole barrel：70um
Min.line width/space：0.3mm
Minimum hole diameter：0.4mm
Surface finishing：immersion gold≥2u”
Application：power supply