Vishay tsal6200 5mm ir emitting diode gaas gaalas vishay tsal6200 a high efficiency infrared emitting diode that is designed with gaalas on gaas technology the diode comes in a 5mm t 1 package with a clear blue grey tinted lens in comparison with standard gaas on gaas technology this emitter achieves more than 100 improvement in radiant power output at a similar wavelength br br the emitter has good spectral matching with vishay tsop ir receiver modules and is also ideal as a rep