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Photointerrupter Transmissive 2.8mm Photologic, Open Collector 4-Pin
Slotted Optical Switch - 890nm Emitter - NPN Phototransistor Output - Slot 0.375" Wide x 0.315" Deep - 24"/26AWG ...
Slotted Optical Switch - NPN Phototransistor Output - Slot 0.205" Wide x 0220" Deep - PCB Through Hole
Photologic® Slotted Optical Switch - Buffered Open Collector Output - PCB Through Hole
Photo micro sensor interrupters
Photointerrupter Transmissive 3.3mm Phototransistor 4-Pin
Photointerrupter Transmissive 3.18mm Photologic, Pull up, Inverter 5-Pin
Photointerrupter Transmissive 3.18mm Photologic, Pull up, Inverter 4-Pin
Photointerrupter Transmissive 3.4mm Phototransistor 4-Pin
Photointerrupter Transmissive 3.6mm Photologic, Open Collector 3-Pin