• Square SMT pads on 0.050” centers for surface mount components. Pads on both sides.
• Double-sided high-quality FR4 glass-epoxy circuit board with unplated holes.
• 1oz/ft2 copper with an anti-tarnish coating for easy soldering. Lead free and RoHS compatible.
• 0.031" (0.79mm) holes (unplated) for connections to the other side. Just insert a wire and solder.
• Size2 = 100 x 80mm (3.94 x 3.15in), 1/16" thick (1.6mm). Four 0.125” mounting holes.

SMTpads is a prototyping circuit board with a grid of pads for 0402, 0603, 0805, 1206, SOT23, and other SMT parts. A grid of 42 mil square pads on 50 mil centers allows SMT components of various sizes and pitches to be mounted. Larger components can span pads. SOIC (50 mil pitch) and DIP (100 mil pitch) integrated circuits can be soldered directly to the pads without adapters. The 2S board has square pads on 2 sides. This allows SMT circuitry to be constructed on both sides. There are unplated holes spaced 4 pads apart for easy connections to the other side. Just insert a wire and solder both sides.

Construction Tip: Solder down one strand of 22 AWG stranded wire to make tracks where you need them. Use solid 22 AWG wire for higher current power and ground tracks.