TSOP28 TO DIP28 Coverless programming test socket, used to program and test the TSOP28 IC chip 28-Pin IC Test Socket, 0.55mm Pitch, 11.8mm Width, Suitable for Package: TSOP28 Two columns of DIP single-row pins on the PCB backplane, pitch: 2.54mm (100mil), width: 1.52cm (600mil)