The DTSM-644R-V-T/R is a tactile switch surface mount type 6x6 manufactured by Diptronics. It is a single-pole momentary pushbutton switch with a 3.0mm x 3.0mm square body. It has a bright white, black, or red LED indicator, and a soft-touch tactile feel. The switch is rated for 200mA at 24VDC, and 50mA at 125VAC. It has an operating temperature range of -40°C to +85°C, and comes in both tape & reel and tray packaging for automated processes, or manual manipulation.