OPB608R Ver la hoja de datos (PDF) - TT Electronics.
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OPB608R Datasheet PDF : 5 Pages
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Reflective Object Sensor
OPB608A, OPB608B, OPB608C, OPB608R, OPB608V
Features:
Phototransistor output
Unfocused for sensing diffuse surface
Low cost plastic housing
Enhanced signal to noise ratio
Reduced ambient light sensitivity
Description:
OPB608 reflective switches consist of an infrared emitting device (LED or VCSEL) and a NPN silicon phototransistor mounted “side-
by-side” on a parallel axis in a black opaque plastic housing. All OPB608’s (except OPB608R) have an emitting device and a
phototransistor that are encapsulated in a visible filtering epoxy. The phototransistor responds to radiation from the emitter only
when a reflective object passes within its field of view. The phototransistor has enhanced low current roll-off to improve the
contrast ratio and immunity to background irradiance. LED versions are designed for near-field applications. The VCSEL version is
designed for longer distances.
OPB608A, OPB608B and OPB608C devices are designed for applications with reflective distances between 0.050” (1.270 mm) and
0.375” (9.525 mm). OPB608V is designed for applications with reflective distances between 0.050” (1.270 mm) and
1.200” (30.480 mm). All of these are designed for light patterns not visible to the human eye. By utilizing the night enhancement
function of a camera, the near infrared light pattern can be seen. This allows a user to see the pattern shining on the reflective
object.
OPB608R is designed for applications with reflective distances between 0.050” (1.270 mm) and 0.300” (7.620 mm). It is designed
for light patterns visible to the human eye. The efficiency of this sensor is lower for optical wavelengths in the visible range, thus
reducing the distance that can be used.
Reflective distances are dependent upon the drive current for the light emitting device, the wavelength of the light source, and the
type of reflective material; therefore, each application should be checked for the ability to meet each requirement.
Custom electrical, wire and cabling and connectors are available. Contact your local representative or OPTEK for more
information.
Applications:
Non-contact reflective object sensor
Assembly line automation
Machine automation
Machine safety
End of travel sensor
Door sensor
Part
Number
OPB608A
OPB608B
OPB608C
OPB608R
OPB608V
LED Peak
Wavelength
890 nm
650 nm
850 nm
Ordering Information
Sensor
Reflection Distance
Inch (mm)
Rbe Transistor
See Graph
on Page 4
Lead
Length
0.18"
(Min)
Additional laser safety information can be found on
the Optek website. See application #221.
Classification is not marked on the device due to space
limitations. See package outline for centerline of
optical radiance. Operating devices beyond maximum
rating may cause devices to exceed rated classification
General Note
TT Electronics reserves the right to make changes in product specification without
notice or liability. All information is subject to TT Electronics’ own data and is
considered accurate at time of going to print.
© TT electronics plc
TT Electronics | Optek Technology, Inc.
1645 Wallace Drive, Ste. 130, Carrollton, TX USA 75006 |Ph: +1 972 323 2200
www.ttelectronics.com | sensors@ttelectronics.com
Issue D 01/2017 Page 1
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