Slotted Optical Switch

Each OPB820 and OPB821 device consists of an Infrared Emitting Diode (LED, 890 nm center wavelength) and a NPN silicon Phototransistor mounted in a low-cost black plastic housing on opposite sides of an 0.080 (2.03 mm) wide slot. Each device in this series has a 0.040 (1.02 mm) wide aperture located in front of the infrared Diode Phototransistor switching occurs when an opaque object passes through the slot. Devices are offered with 0.275 (6.96 mm) lead spacing for PCBoard mounting OPB820 or 24 (610 mm) 26 AWG wire leads (OPB821). By Optek Technology, Inc.
OPB820 's PackagesOPB820 's pdf datasheet

OPB820 Pinout, Pinouts
OPB820 pinout,Pin out
This is one package pinout of OPB820,If you need more pinouts please download OPB820's pdf datasheet.

OPB820 circuits will be updated soon..., now you can download the pdf datasheet to check the circuits!

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