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 A .1 12/05
Page 1 of 3
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
Slotted Optical Switch
OPB855
Features:
Low profile 0.27" (6.858 mm) overall height
Printed PCBoard mounting
0.205" (5.21 mm) wide and 0.150 (3.81 mm) deep slot
0.380" (9.65 mm) lead spacing
Opaque plastic housing
Description:
The OPB855 slotted optical switch consists of an infrared emitting diode and a NPN silicon phototransistor,
mounted on opposite sides of a 0.205" (5.21 mm) wide slot in an inexpensive plastic housing. Switching of the
phototransistor occurs whenever an opaque object passes through the slot.
Custom electrical, wire and cabling and connectors are available. Contact your local representative or OPTEK for
more information.
Product Photo Here
Ordering Information
OPB855
Phototransistor Output
Part Number
Description
RoHS
Pin #
Description
1 Anode
2 Cathode
3 Collector
4 Emitter
1
2
3
4
Applications:
Non-contact interruptive object sensing
Assembly
line automation
Machine automation
Equipment security
Machine safety
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 A .1 12/05
Page 2 of 3
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
Slotted Optical Switch
OPB855
Absolute Maximum Ratings
(T
A
=25C unless otherwise noted)
Storage & Operating Temperature Range
-40C to +85 C
Lead Soldering Temperature [1/16 inch (1.6mm) from the case for 5 sec. with soldering iron]
(1)
260
C
Input Diode (See OP140 for additional information)
Forward DC Current
50 mA
Peak Forward Current (1 s pulse width, 300 pps)
3 A
Reverse DC Voltage
2 V
Power Dissipation
(2)
100 mW
Collector-Emitter Voltage
30 V
Emitter-Collector Voltage
5 V
Output Phototransistor (See OP550 for additional information)
Collector DC Current
30 mA
Power Dissipation
(2)
100 mW
Notes:
(1) RMA flux is recommended. Duration can be extended to 10 seconds maximum when flow soldering.
(2) Derate linearly 1.67 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
V
F
Forward
Voltage
- - 1.5 V I
F
= 40 mA
I
R
Reverse
Current
- - 100 A V
R
= 2 V
Output Phototransistor
V
(BR)CEO
Collector-Emitter
Breakdown
Voltage 30 -
-
V I
C
= 1 mA
V
(BR)ECO
Emitter-Collector
Breakdown
Voltage
5
-
-
V I
E
= 100 A
I
CEO
Collector-Emitter Dark Current
-
-
100
nA
V
CE
= 10 V, I
F
= 0, E
E
= 0
Combined
V
CE(SAT)
Collector-Emitter
Saturation
Voltage
-
-
0.4
V I
C
= 400 A, I
F
= 20 mA
I
C(ON)
On-State Collector Current
500
-
-
A V
CE
= 5 V, I
F
= 20 mA
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 A .1 12/05
Page 3 of 3
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
Slotted Optical Switch
OPB855
OPB816Z - Flag in Middle of Slot
0.00
0.20
0.40
0.60
0.80
1.00
1.20
0.00
0.05
0.10
0.15
0.20
0.25
Displacement Distance (inches)
Typi
cal
I
C(O
N
)
R
esponse
(
m
A)
Right to Left
Left to Right
Top to Bottom
OPB816Z - Flag Next to Emitter
0.00
0.20
0.40
0.60
0.80
1.00
1.20
0.00
0.05
0.10
0.15
0.20
0.25
Displacement Distance (inches)
Typ
i
cal
I
C(
O
N
)
R
espon
se (
m
A
)
Right to Left
Left to Right
Top to Bottom
OPB816Z - Flag Next to Sensor
0.00
0.20
0.40
0.60
0.80
1.00
1.20
0.00
0.05
0.10
0.15
0.20
0.25
Displacement Distance (inches)
Ty
pi
ca
l
I
C(
O
N
)
Re
spo
n
se
(m
A)
Right to Left
Left to Right
Top to Bottom
Test Schematic
OPB855 - Flag in Middle of Slot
OPB855 - Flag Next to Sensor
OPB855 - Flag Next to Emitter
Test Schematic
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