OSG5GP5111A, from Optosupply, is a surface mount red LED, made of InGaAlP (Indium Gallium Aluminum Phosphide) material, with a full viewing angle of 120°. It has a peak wavelength of 655nm, a luminous intensity of 16.2 mcd, a forward voltage of 2.4 V, a reverse current of 400 nA, and a 100 mA maximum forward current rating. The LED package size is 5.6mm x 3.2mm x 1.1mm, and it is RoHS compliant.