Pololu Mini 1A SPDT Switch

• Pololu Mini SPDT momentary switch
• Dimensions: 12.8 × 6.0 × 6.5 mm
• Three-pin microswitch 
• Can also be used as a two-pin single-pole

The Pololu Mini 1A SPDT Switch can be used as a general-purpose microswitch or as a small tactile bump sensor for your robot. The switch body dimension is 12.8 × 6.0 × 6.5 mm (0.50 × 0.24 × 0.26 Inches), and the lever arm is 13.5 mm (0.53 Inch) long.

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.