Pololu Snap-Action Switch with 15.6mm Bump Lever: 3-Pin, SPDT, 5A

Overview

This single-pole, double-throw (SPDT) momentary switch can be used as a general-purpose micro switch or tactile obstacle-detector for your robot. The switch body dimension is 20.0 x 6.4 x 10.2 mm (0.79"" x 0.25"" x 0.40""), and the 15.6mm (0.61"") lever arm has a semicircular bump at the tip that simulates a roller. This three-pin switch can also be used as a two-pin single-pole, single-throw (SPST) switch that is open or closed by default, depending on which two pins are used.

For a more sophisticated tactile sensor, see our force-sensing resistors.