SENSOR OPTO 3.4MM SLOT PCB TERM
Optical Switches, Transmissive, Phototransistor Output Photo Microsensor
Transmissive Photointerrupter, Phototransistor, 3mm Gap, 4-Pin SMD
Photointerrupter Transmissive 5mm Phototransistor 6-Pin SMD T/R
Photoelectric Sensor Thru-beam Light ON/Dark ON NPN 5m 4-Pin