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Slotted Optical Switch - NPN Phototransistor Output - Slot 0.13" Wide x 0.345" Deep - 24"/26AWG Wires

Photointerrupter Transmissive 3.4mm Phototransistor 4-Pin

Photologic® Slotted Optical Switch - Inverterd Open Collector Output - PCB Through Hole

Photologic® Slotted Optical Switch - Buffered Open Collector Output - PCB Through Hole

Optical Sensor - NPN Open Collector, Buffer Output - Through-Beam - 0.375" (9.53mm) - 15mA 4.75 to 5.25V - Module ...

Photointerrupter Transmissive 5mm 3-Pin

Photomicrosensor (Transmissive) - Optical Sensor Transmissive - Dust-proof Model - Sensing Distance 0.142" (3.6mm ...

Photointerrupter Transmissive 3.18mm Phototransistor 4-Pin Bag

Photointerrupter Transmissive 3.18mm Phototransistor 4-Pin

Optical Switches, Transmissive, Photo IC Output Photologic Slotted Optical Switch