Plated through hole solder breadboard. Plated through holes on 2.00mm matrix. Hole pitch of 2.00mm center-to-center. Pads are 1.5mm diameter (0.059") in size. Holes are 1.00mm (0.039") in diameter. Space between pads is 0.50mm (0.020"). Dimensions: 2.0" x 2.0" x 0.063" PCB construction: FR-4 UL94V-0. PCB operating temperature range: -40C to +130C. PCB reflow maximum temperature: +260C.