The GT-TC149A-H090-L1 electronic part by G-Switch is a tactile switch featuring a SMD (surface mounted device) with a 9mm round, black button. It has a SPST (Single Pole, Single Throw) nogging, Gull-wing lead, and a rated current of 50mA. It has a actuation force of 160gf±30gf, 100MO resistor, 100000-cycle life expectancy, and an operating temperature range of -30°C to +85°C. Furthermore, this part is RoHS compliant.