Among these tactile switches, Omron’s B3WN series has excellent technical advantages in the market. The double-sealed construction ensures watertight and dust-tight performance, conforming to IP67, which achieves high reliability in dusty or humid environments. The size of B3WN is 8 mm x 8 mm and allows it to be use with radial taping part insertion machines. As for the structure, the B3WN is essentially composed of eight main parts as depicted on this slide.