Description
The OPB853A series of slotted optical switches consist of an infrared emitting diode and a NPN silicon photodarlington. They are mounted on opposite sides of a 0.125” (3.18 mm) wide slot. The emitter has a 0.050" X 0.050" (1.27 mm X 1.27mm) molded-in aperture while the photodarlington has 1.010" X 0.050" (0.254 mm X 1.27 mm) molded-in aperture.

FEATUREs:
• Inexpensive opaque plastic housing
• 0.125” (3.18 mm) wide slot
• 0.290” (7.37 mm) lead spacing
• Apertured for high resolution
• Photodarlington output