IR311 Overview
REFLECTIVE NON FOCUSING SENSOR PCB MOUNT 0.083 (2.11) OPTICAL CENTERLINE PIN 1 INDICATOR 0.240 (6.10) 0.120 (3.05) 0.173 (4.39) 0.183 (4.65) 0.500 (12.7) MIN 0.020 (0.51) SQ. (4X) 2 3 0.100 (2.54) 1 4 0.083 (2.11) PIN 1 COLLECTOR PIN 2 EMITTER PIN 3 ANODE PIN.