Vishay VSMY2850 Series IR Emitting Diodes. The VSMY2850RG and VSMY2850G series, from Vishay Semiconductor, are high speed Infrared (IR) emitting diodes. They are in suface mount (SMT) packages with a clear, untinted dome shaped lens. The VSMY2850RG and VSMY2850G offer different lead types for mounting. Suitable applications for the VSMY2850RG and VSMY2850G IREDs include; IrDA compatible data transmission, miniature light barriers, photointerrupters, optical switches, proximity sensors, IR touch panels and IR illumination.. Features of the VSMY2850RG and VSMY2850G IR LEDs: VSMY2850RG - Reverse gull wing (RGW) VSMY2850G - Gull wing (GW) Dimensions: 2.3 x 2.3 x 2.8 mm Peak wavelength: 850nm High reliability High radiant power Beam angle: 20°