The 8121SHZGE with dimensions 12.7 x 7.98 x 26.24 mm has Surface Mount mounting with SPST Pole throw configuration ,ON Mom switching configuration and Round Plunger actuator. The 8121SHZGE has CAP INSTALLATION FORCE of 10 lbs and contact rating of 1A@28V. This unsealed switch has Solder Lug termination style with Straight body orientation.They are snap-acting momentary pushbutton switches that is used in telecommunications equipment and computer peripherals because of their positive tactile feel and wide variety of termination options. It is also epoxy terminal seal-compatible with bottom wash cleaning