OPB885Z Datasheet, PDF (1/3 Pages) OPTEK Technologies – Slotted Switch

Slotted Switch
OPB885Z
Features:
• 26 gauge wired assembly
• Non-contact infrared switch
• Opaque plastic housing
• 0.375” (9.525 mm) slot width
• 0.595” (15.113 mm) slot depth
Product Photo Here
Description:
OPB885 uses an Infrared LED and a phototransistor in a slotted switch configuration. The assembly has 24”
(609.600 mm) wires on each terminal and uses an opaque housing to reduce the sensor’s ambient light
sensitivity. Each discrete has an 0.050” (1.270 mm) aperture that focuses the switching sensitivity and limits
ambient light absorption by the phototransistor. The housing is made from an opaque plastic with IR transmissive
plastic in the front of each aperture to provide dust protection.
The phototransistor can be configured as a common collector or common emitter device. When the gap is
unobstructed or has material that is transmissive to infrared light from the LED, the light will penetrate the housing
and aperture to irradiate the surface (base) of the phototransistor. When infrared light strikes the phototransistor,
the transistor becomes forward biased and is considered to be in the “on” state, providing an I_C(ON) current that is
proportional to the light striking the phototransistor. As the light is blocked by using an opaque object that blocks
the infrared light from the LED to the phototransistor, the phototransistor turns “off,” minimizing the I_C(ON) current
and thus allowing the electrical state to be switched.
Applications:
• Non-contact interruptive object
sensor
• Assembly line automation
• Machine automation
• Equipment security
• Machine safety
• End of travel sensor
• Door sensor
2
3
1
4
Ordering Information
OPB885
Non-contact infrared switch
Pin #
White-1
Green-2
Red-3
Black-4
Description
Collector
Emitter
Anode
Cathode
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 05/05
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