Slotted Optical Switch
OPB820, OPB821Z, OPB821S
Z
Features:
•
•
•
•
•
Non-contact switching
Four standard aperture sizes for high resolution
Low profile
0.080” (2.03 mm) wide, 0.250” (8.89 mm) deep slot
Choice of PCBoard or wire mountings
OPB820
Product Photo Here
OPB821Z
Description:
Each
OPB820
and
OPB821Z
device consists of an infrared emitting diode (LED, 890 nm center wavelength) and
a NPN silicon phototransistor mounted in a low-cost black plastic housing on opposite sides of an 0.080” (2.03
mm) wide slot. Each device in this series has a 0.040” (1.02 mm) wide aperture located in front of the infrared
diode. Phototransistor switching occurs when an opaque object passes through the slot.
Devices are offered with 0.275” (6.96 mm) lead spacing for PCBoard mounting (OPB820) or 24” (609 mm) 26
AWG wire leads (OPB821Z).
Custom electrical, wire and cabling and connectors are available. Contact your local representative or OPTEK for
more information.
Applications:
•
•
•
•
•
Non-contact object sensing
Assembly line automation
Machine automation
Equipment safety
Machine safety
Part
Number
OPB820
OPB820S10
OPB820S5
OPB820S3
890 nm
OPB821Z
OPB821S10Z
OPB821S5Z
OPB821S3Z
LED Peak
Wavelength
Ordering Information
Sensor
Slot Width /
Depth
Aperture
Emitter/Sensor
0.04"/ 0.04"
0.04"/ 0.01"
0.425" / 0.275"
0.04"/ 0.005"
Transistor
0.080" /
0.255”
0.04"/ 0.003"
0.040"/ 0.040"
0.040"/ 0.010"
0.040"/ 0.005"
0.040"/ 0.003"
24"/26 AWG
Wire
Lead Length /
Spacing
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 C 09/2011
Page 1 of 7
Slotted Optical Switch
OPB820, OPB821Z, OPB821S
Z
Package Drawing
OPB820
Package Drawing
OPB821
24.0 [609]
[ MILLIMETERS]
DIMENSIONS ARE IN:
INCHES
Pin #
4
3
Description
Cathode
Anode
Pin #
2
1
Description
Collector
Emitter
Color/Pin #
Green-3
Orange-4
Description
Cathode
Anode
Color/Pin #
White-2
Blue-1
Description
Collector
Emitter
4
2
3
2
3
1
4
1
CONTAINS POLYSULFONE
To avoid stress cracking, we suggest using
ND Industries’
Vibra-Tite
for thread-locking.
Vibra-Tite
evaporates fast without causing structural
failure in OPTEK’s molded plastics.
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
Issue C 09/2011
Page 2 of 7
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
Slotted Optical Switch
OPB820, OPB821Z, OPB821S
Z
Absolute Maximum Ratings
(T
A
=25°C unless otherwise noted)
Storage and Operating Temperature
Lead Soldering Temperature (1/16 inch [1.6 mm] from case for 5 seconds with soldering iron)
(1)
Input Diode
Continuous Forward Current
Peak Forward Current (1µs pulse width, 300 pps)
Reverse Voltage
Power Dissipation
(2)
Output Phototransistor
Collector-Emitter Voltage
Emitter-Collector Voltage
Power Dissipation
(2)
30 V
5V
100 mW
50 mA
1A
2V
100 mW
-40°C to +85°C
260°C
Notes:
(1) RMA flux is recommended. Duration can be extended to 10 seconds maximum when flow soldering.
(2) For OPB820, derate linearly 1.67 mW/° C above 25° C. For OPB821Z, derate linearly 1.82 mW/° C above 25° C.
(3) Methanol or isopropanol are recommended as cleaning agents. Plastic housing is soluble in chlorinated hydrocarbons and
ketones.
(4) All parameters were tested using pulse technique.
Electrical Characteristics
(T
A
= 25°C unless otherwise noted)
SYMBOL
PARAMETER
MIN
TYP
MAX
UNITS
TEST CONDITIONS
Input Diode
(See OP245 for additional information)
V
F
I
R
Forward Voltage
Reverse Current
-
-
-
-
1.7
100
V
µA
I
F
= 20 mA
V
R
= 2 V
Output Phototransistor
(See OP555 for additional information)
V
(BR)CEO
V
(BR)ECO
I
CEO
Coupled
Collector-Emitter Saturation Voltage
OPB820, OPB821Z
OPB820S3, OPB821S3Z
OPB820S5, OPB821S5Z
OPB820S10, OPB821S10Z
On-State Collector Current
OPB820, OPB821Z
OPB820S3, OPB821S3Z
OPB820S5, OPB821S5Z
OPB820S10, OPB821S10Z
-
-
-
-
500
60
300
400
-
-
-
-
-
-
-
-
0.4
0.4
0.4
0.4
-
-
-
-
V
V
V
V
µA
µA
µA
µA
I
C
= 250 µA, I
F
= 20 mA
I
C
= 40 µA, I
F
= 20 mA
I
C
= 150 µA, I
F
= 20 mA
I
C
= 250 µA, I
F
= 20 mA
V
CE
= 5 V, I
F
= 20 mA
V
CE
= 5 V, I
F
= 20 mA
V
CE
= 5 V, I
F
= 20 mA
V
CE
= 5 V, I
F
= 20 mA
Collector-Emitter Breakdown Voltage
Emitter-Collector Breakdown Voltage
Collector-Emitter Dark Current
30
5
-
-
-
-
-
-
100
V
V
nA
I
C
= 100 mA
I
E
= 100 µA
V
CE
= 10 V, I
F
= 0, I
E
= 0
V
CE(SAT)
I
C(ON)
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 C 09/2011
Page 3 of 7
Slotted Optical Switch
OPB820, OPB821Z, OPB821S
Z
OPB820 - Flag Next to Emitter
1.20
Top to Bottom
OPB820 - Flag next to Sensor
1.20
Top to Bottom
1.00
1.00
Normalized I
C(ON)
Response
Normalized I
C(ON)
Response
0.80
Left to Right
Right to Left
0.80
0.60
0.60
Left to Right
Right to Left
0.40
0.40
0.20
0.20
0.00
0.00
0.05
0.10
0.15
0.20
0.25
0.00
0.00
0.05
0.10
0.15
0.20
0.25
Displacement Distance (inches)
Displacement Distance (inches)
OPB820 - Flag in Middle of Slot
1.20
Top to
1.00
0
Top to Bottom
Normalized I
C(ON)
Response
0.80
Left to Right
Right to Left
0.60
Left to Right
Emitter
Right to Left
0.40
Sensor
0
Width
0.20
0.00
0.00
0.05
0.10
0.15
0.20
0.25
Displacement Distance (inches)
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
Issue C 09/2011
Page 4 of 7
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
Slotted Optical Switch
OPB820, OPB821Z, OPB821S
Z
OPB820S3 - Flag Next to Emitter
1.20
Top to Bottom
OPB820S3 - Flat Next to Sensor
1.20
Top to Bottom
1.00
1.00
Typical I
C(ON)
Response (mA)
0.80
Left to Right
Right to Left
Typical I
C(ON)
Response (mA)
0.80
Left to Right
Right to Left
0.60
0.60
0.40
0.40
0.20
0.20
0.00
0.00
0.05
0.10
0.15
0.20
0.25
0.00
0.00
0.05
0.10
0.15
0.20
0.25
Displacement Distance (inches)
Displacement Distance (inches)
OPB820S3 - Flag in Middle of Slot
1.20
Top to Bottom
1.00
0
Top to Bottom
Typical I
C(ON)
Response (mA)
0.80
Left to Right
Right to Left
0.60
Emitter
Left to Right
Right to Left
0.40
Sensor
0.20
0
Width
0.00
0.00
0.05
0.10
0.15
0.20
0.25
Displacement Distance (inches)
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 C 09/2011
Page 5 of 7
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