光学开关（透射型，光电晶体管输出） General Purpose PCB 4.2mm Wide Slot
Optical Sensor Through-Beam 0.165" 4.2mm Phototransistor PCB Mount
得捷:
SENSOR OPT SLOT PHOTOTRAN PCB MT
贸泽:
光学开关（透射型，光电晶体管输出） General Purpose PCB 4.2mm Wide Slot
艾睿:
Photointerrupter Transmissive 4.2mm Phototransistor 4-Pin
Chip1Stop:
Photointerrupter Transmissive 4.2mm Phototransistor 4-Pin
TME:
Sensor: photoelectric; through-beam with slot; Usup:4VDC; 20mA
Newark:
# OMRON ELECTRONIC COMPONENTS EE-SX1128 Transmissive Photo Interrupter, Phototransistor, Through Hole, 4.2 mm, 0.5 mm, 50 mA, 4 V
Electro Sonic:
Photointerrupter Transmissive 4.2mm Phototransistor 4-Pin
Win Source:
OPTO SENSOR 4.2MM SLOT PCB TERM