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OPB821Z Datasheet Slotted Optical Switch

Manufacturer: TT Electronics

Overview: Slotted Optical Switch OPB820S, OPB821Z, OPB821S_Z.

This datasheet includes multiple variants, all published together in a single manufacturer document.

General Description

: Each OPB820S and OPB821Z 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.

Key Features

  • Non-contact switching.
  • Four standard aperture sizes for high resolution.
  • Low profile.
  • 0.080” (2.03 mm) wide, 0.250” (8.89 mm) deep slot.
  • Choice of PCBoard or wire mountings OPB820S OPB821Z.

OPB821Z Distributor