OPB420AZ Datasheet, PDF (1/6 Pages) OPTEK Technologies – Right Angle Sensor: LED in tower, photosensor in base

Slotted Optical Switch
OPB420AZ & OPB420BZ
Features:
• Non-contact switching
• Right Angle Sensor: LED in tower, photosensor in base
• Choice of output configuration
• Optical line can be broken in three axis
• 24” minimum, 26 AWG UL approved wire leads
Product Photo Here
Description:
The OPB420 series optical switch consists of an infrared emitting diode (LED) and a phototransistor. The LED is
mounted on the tower with the phototransistor mounted on the base of a right angle shape package. The L-Shape
or right angle package configuration allows for an opaque object to block the light beam from a multitude of
directions including the X-axis Y-axis and Z-axis. The optical center line between the emitter and photosensor is
at 45° from the mounting base of the device. The OPB420AZ utilizes a phototransistor with a current output
proportional to the input drive current of the LED. The OPB420BZ utilizes a phototransistor with a base-emitter
resistance (R_BE) which provides protection from low level light conditions. The OPB420BZ is ideal for applications
that require an enhanced contrast ratio and immunity to background irradiance, such as detection of semi-
transparent media.
Custom electrical, wire and cabling and connectors are available. Contact your local representative or OPTEK for
more information.
Applications:
• Non-contact interruptive object
sensing
• Tray-out sensor
• Low paper tray sensor
• Corner sensor
• Printers
• Copying machines
• Paper sorting equipment
• Amusement gaming equipment
• Door sensor
• Optical Switch
Part #
OPB420AZ
OPB420BZ
LED
Wavelength
880 nm
PhotoSensor
Phototransistor
R_BE Phototransistor
OPB420AZ
OPB420BZ
RoHS
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006
Phone: [phone] or [phone]
FAX: [phone] [e-mail] www.optekinc.com
Issue A.1 11/08
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