Snap-Action Switch with 18.5mm Bump Lever: 3-Pin, SPDT, 5A

This single-pole, double-throw (SPDT) momentary switch can be used as a general-purpose micro switch or tactile bump sensor for your robot. The switch body dimension is 19.8 x 6.4 x 10.2 mm, and the 18.5 mm lever arm has a semicircular bump at the tip that simulates a roller.