Fairchild Semiconductor QED221 - PLASTIC INFRARED LIGHT EMITTING DIODE PLASTIC INFRARED LIGHT EMITTING DIODE QED221 PACKAGE DIMENSIONS 0.195 (4.95) QED222 QED223 REFERENCE SURFACE 0.305 (7.75) 0.040 (1.02) NOM 0.800 (9 views)