The GT-TC074E-H070-L1 is a black round button brick nogging tactile switch manufactured by G-Switch. It features no NO gull-wing lead and SPST SMD circuitry. It has a nominal operating rating of 4.5mm with a resistance of 100MO and a current rating of 50mA. It can handle up to 100000 operations when the voltage is set at 12V, with a maximum force of 130gf at ±30gf. It is rated for temperatures from -30? to +85?, and is RoHS compliant. Its overall size is 7mm.