The YTS331LHS tactile switch manufactured by YIYUAN is an SMD switch which has a splicing of 50mA, a 3mm diameter, a 100MO resistance, 500000 cycles of operating life, 240gf of force with a tolerance of ±50gf, 12V applied voltage, -40? to +85? of operating temperature, 2mm height, 0.6mm thickness, black colour and round button brick shape. This switch is compliant to RoHS standards.