Adaption circuit board for SOP24, HSOP24, SOIC24, SO24. Epoxy fibre-glass FR4 1.50 mm. Double-sided 35 µm Cu. Plated through holes (PTH). Surface chem. Ni/Au. Solder stop mask. Hole spacing 2.54 mm. Two experimenting areas with 2 x 4 square pads 2.20 x 2.