Electronics.The TS-1159UB-C-D-BL tactile switches manufactured by XKB Electronics are single-pole, single-throw (SPST) surface-mount devices (SMD). They measure 6.20mm x 6.20mm x 5.20mm and are rated at 50mA @ 12VDC. They have been certified as compliant with Restriction of Hazardous Substances Directive (RoHS). They are tact-type switches that are used to control power, audio, alarm, and switching functions in applications such as PCB assemblies, consumer electronics, automotive, electronic test equipment, and other electronic equipment.