The GT-TC149A-H045-L1 tactile switches manufactured by G-Switch are a surface mount, single-pole single-throw (SPST) switch with no NO Gull-wing lead. It has a maximum current rating of 50mA, 12mm length, 100MO resistance, 100000 life cycles, 12V operating voltage, 160gf@±30gf operating force, 12mm vertical height, temperature range of -30?~+85?, and a 4.5mm black round button brick nogging form factor. It is compliant with RoHS standards.