OPB720A-12Z Optek, OPB720A-12Z Datasheet

Photointerruptors Long Range Refl. Sens. 10-30V

OPB720A-12Z

Manufacturer Part Number

OPB720A-12Z

Description

Photointerruptors Long Range Refl. Sens. 10-30V

Manufacturer

Optek

Datasheet

1.OPB720A-12Z.pdf (5 pages)

Specifications of OPB720A-12Z

Maximum Operating Temperature

+ 50 C

Minimum Operating Temperature

0 C

Sensing Method

Reflective

Maximum Collector Current (detector)

50 mA

Output Device

Photologic, Open Collector

Power Dissipation

300 mW

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

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Long Distance Reflective Switch

OPB720A and OPB720B Series

OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006

Phone: (972) 323-2200 or (800) 341-4747

Features:

•

Description:

The OPB720A and OPB720B Series reflective switches detects objects as far away as 12” (305 mm) using

standard 90% reflective material, and can detect objects as small as 0.08” (2 mm). The OPB720 series consist of

three standard reflective switching distances -06Z for typically 6” (152 mm), -12Z for typically 12” (305 mm) and

-30VZ for typically 30” (762 mm). The power supply voltage range of the OPB720A series is 10 to 30 volts while

the power supply voltage range for the OPB720B is 4 to 7 volts.

The OPA720A and OPB720B sensors are NOT affected by ambient light in most conditions. Ambient light

conditions are compensated by using a synchronous driver detection scheme.

This sensor has a logical output that switches from a high level with reflective target to a low level with no reflective

target. With the addition of hysteresis, the OPB720 series minimizes output switching oscillations. The type of

material used for the target is very dependent on the distance that can be achieved for the sensor. Taking this into

consideration, the OPB720 series can be used in either a reflective or interruptive mode. As an example, the

OPB720A-12Z can easily be used in a reflective mode for distances around 12” (305 mm) while when reflecting off

a retro-reflective target similar to 3M 3870 or Nippon Crystallite at distances around 85” (216 mm) the device

works well in the interruptive mode. See the included charts for typical distances with different reflective material

for other versions of the OPB720 series devices.

The OPB720 series has an open collector output transistor and power requirements are compatible with most

PLCs and TTL gates.

Applications:

•

0.04” to 12” (1 mm to 305 mm) with 90% reflective material.

(Typical Maximum detection distance to be set at factory)

Recognizes objects as small as 0.08” (2 mm)

Ambient light rejection < 100K Lux

Open collector output

Cable length 39” (990 mm) lead length 28 AWG wire

Conveyer belt package recognition

Personnel movement recognition

Near-focus security systems

Hand wash and soap dispensing stations

Toilet and urinal sensors

Product dispensing systems

RoHS

OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.

Electronics

Ground

Vcc

FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com

Output

OPB720A-30VZ

OPB720B-30VZ

OPB720A-06Z

OPB720B-06Z

OPB720A-12Z

OPB720B-12Z

Part Number

OPB720A-30VZ & OPB720B-30VZ ONLY

39” (991 mm) lead length with 28 AWG wire, using white 90%

Maximum detection of 0.04” to 12” (1.0 mm to 305 mm)

Maximum detection of 0.04” to 30” (1.0 mm to 762 mm)

Maximum detection of 0.04” to 6” (1.0 mm to 152 mm)

Ordering Information

Classification is not marked on the device due to

Additional laser safety information can be found

vices beyond maximum rating may cause de-

on the Optek website. See application #221.

centerline of optical radiance. Operating de-

space limitations. See package outline for

reflective paper

Description

vices to exceed rated classification

Issue F.1

Page 1 of 5

01/08

Related parts for OPB720A-12Z

OPB720A-12Z Summary of contents

Page 1

... OPB720 series can be used in either a reflective or interruptive mode example, the OPB720A-12Z can easily be used in a reflective mode for distances around 12” (305 mm) while when reflecting off a retro-reflective target similar to 3M 3870 or Nippon Crystallite at distances around 85” (216 mm) the device works well in the interruptive mode ...

Page 2

... Notes: (1) RMA flux is recommended. Duration can be extended to 10 seconds maximum when flow soldering. (2) Distance for OPB720A-06Z=6 “ (152 mm), Distance for OPB720A-12Z=12” (305mm), Distance for OPB720A-30VZ=30” (762 mm) (3) OPB720A-30VZ & OPB720B-30VZ are class 1M laser safety device. Do Not look at the device closer than 4” (100 mm) with a magnifying device ...

Page 3

... Long Distance Reflective Switch OPB720A and OPB720B Series 0'' 2 40'' 45'' 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 ...

Page 4

... OPB720A-12Z OPB720A-12Z or OPB720B-12Z 6'' 8'' 10'' Typical Displacement (inches) Voltage Response vs Displacemnent OPB720A-12Z OPB720A-12Z or OPB720B-12Z Nippon Crystallite toward Nippon Crystallite away 3M 3870 toward 3M 3870 away 80'' Typical Displacement (inches) OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006 Phone: (972) 323-2200 or (800) 341-4747 ...

Page 5

... Long Distance Reflective Switch OPB720A and OPB720B Series 25'' 30 120'' 145'' 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 ...

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