🇬🇧1.27mm 0.05” 50mil fine pitch SMD SOIC prototyping PCB perfboard proto board
The plated through-holes are arranged in the usual 0.1” grid but between them are pads on a 0.05” (1.27 mm) grid. SOIC (SMD, 1.27mm pitch). DIP (THT, 2.54mm pitch). SOT-23-3 (SMD). SOT-23-6 (SMD). SOT-323 (SMD).