光学开关（透射型，光电晶体管输出） w/Photo Darlington PCB 3.4mm Wide Slot
Optical Sensor Through-Beam 0.118" 3mm Photodarlington PCB Mount
得捷:
SENSOR OPT SLOT DARL PCB MOUNT
贸泽:
光学开关（透射型，光电晶体管输出） w/Photo Darlington PCB 3.4mm Wide Slot
Chip1Stop:
Photointerrupter Transmissive 3mm Photodarlington 4-Pin
Electro Sonic:
Photointerrupter Transmissive 3mm Photodarlington 4-Pin