Adapter QFN52 with pins Epoxy fibre-glass 1.50 mm Double-sided 35 μm Cu Plated through holes (PTH) Hot air leveling (HAL leadfree) Solder stop mask Adaption circuit board for QFN52 with 0.40 mm pitch With pin header Hole spacing 2.54 mm Hole diameter 1.10 mm with solder pads Ø 2.10 mm Shield pad & cooling field Size 23,80 x 66,90 mm