OPB608V【PDF 1/5 页】SENSR OPTO TRANS 1.27MM REFL PCB

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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

Product Photo Here

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:

Ordering Information

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

Sensor

Rbe Transistor

Reflection Distance

Inch (mm)

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 de-

vices beyond maximum rating may cause de-

vices to exceed rated classification

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: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com

Issue B

10/2010

Page 1 of 5

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