Surface Mount Rotary Encoder - EC11JFor projects that need a rotary encoder but require a single sided design or need to avoid interrupting traces or devices on the other side, the Surface Mount Rotary Encoder EC11J is an excellent choice. This high quality 30 detents encoder from Alps features a smooth bushing suitable for mounting in an enclosure. The encoder includes a built in push button allowing the knob to be pressed to close a separate switch. It features a 3 pad connector