- SMD / SMT package: DFN-6 3x3 ( 3.0 x 3.0 mm) with 0.95 mm pitch. - Adapter board to DIP for breadboard prototyping. - PCB has a solder mask layer to minimise the formation of solder bridges during soldering. - For connectors with 0.1 inch pitch, not included. - Bottom copper has a ground connection.