See Brady Products
Phototransistor - Photomicrosensor - Transmissive optical sensor – Pitch 3mm - PCB mount – 50 mA – 30 V
Photointerrupter Transmissive 12mm Phototransistor 4-Pin
Photointerrupter Transmissive 3.18mm Phototransistor 4-Pin Bag
Photointerrupter Transmissive 3.3mm Phototransistor 4-Pin
The EE-SX4088 is a transmissive photomicrosensor featuring a Light ON output configuration and a wide operating v ...
Photointerrupter Transmissive Photologic, Totem Pole, Buffer 4-Pin
Photointerrupter Transmissive 4.32mm Phototransistor 4-Pin
Photointerrupter Transmissive 3.18mm Photologic, Pull up, Inverter 4-Pin
Photointerrupter Transmissive Photologic, Totem Pole, Inverter 5-Pin
Photointerrupter Transmissive 3.6mm Photologic, Open Collector 3-Pin