The USAKRO UK-B0206G50-SP25Y is an SMD RoHS tactile switch used for mounting on a printed circuit board. This switch is a single-pole, single-throw (SPST) type that is 4.50mm long and 4.50mm wide, with a total height of 5.00mm. It has a rated current of 50mA at 12VDC, with a long life expectancy of 25,000,000 cycles. This switch is ideal for applications such as computer keyboards and control buttons, and is UL approved. This device is RoHS and Halogen free.