11mm SMD Rotary Encoder - Auto Potence
 
11mm SMD Rotary Encoder. It completes one revolution in 20 steps. The shaft on it also serves as a button. When pressed, it switches between the 2 pins on the top. 
 
Features:
- Shaft length 11mm (excluding the base part) 
 - Shaft diameter: 7mm
 - Base dimensions: 12x12x4.5mm
 - Max. current/voltage ratio:10 mA/5 VDC
 - Operating temperature range: -30°C- +70°C