The QRE1113 is a small IR reflectance sensor. This sensor is often used in line following robots because, if  it can sense if a surface is white or black.

There are four pins on the QRE1113 - two control the IR emitting LED while the other two are the collector and emitter of a phototransistor. The IR diode has a max forward current of 50mA and operates at 940nm.Breakout boards (analog and digital) coming soon!

Features:

•     - Phototransistor output
•     - No contact surface sensing
•     - Miniature package
•     - SMT gull wing leads