Contextual Info: _ 1 AIGaAs INFRARED EMITTING DIODE OPTOELECTRONICS QED121/122/123 PACKAGE DIMENSIONS DESCRIPTION The Q E D 12X is an 880 AIGaAs LED encapsulated in a clear, peach tinted, plastic T-1% package. FEATURES • Tight production Ee distribution. ■ Steel lead fram es for im proved reliability in solder