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 12/06
Page 1 of 4
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
OPB854A1, OPB854A2, OPB854A3
OPB854B1, OPB854B2, OPB854B3
Features:
• Opaque housing material for ambient light rejection
• Non-contact switching
• Printed circuit board mounting, lead spacing 0.300” (7.62 mm)
• Slot width 0.100” (2.54 mm)
• Choice of three mounting configurations
Description:
Each OPB854 series contains an Infrared Light Emitting Diode (LED) and an NPN silicon phototransistor mounted
on opposite sides of a 0.100” (2.54 mm) wide slot in an opaque plastic housing. The OPB854 series has an
equivalent aperture of 0.60” (1.52 mm) in diameter because of the lens on the emitting an sensing devices.
The difference between the OPB854A aeries and OPB854B series are electrical characteristics.
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
Applications:
• Non-contact interruptive object sensing
• Assembly line automation
• Machine automation
• Equipment security
• Machine safety
RoHS
OPB854_1
OPB854_2
OPB854_3
Ordering Information
Part Number LED Peak
Wavelength
Sensor Slot Width /
Depth Aperture
Emitter/Sensor Lead Length /
Spacing
OPB854A1
890 nm Transistor 0.100" / 0.250” None
OPB854B1
OPB854A2
OPB854B2
OPB854A3
OPB854B3
0.400" / 0.300"
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 12/006
Page 2 of 4
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
OPB854A1, OPB854A2, OPB854A3
OPB854B1, OPB854B2, OPB854B3
Pin # Description
1 Anode
2 Cathode
3 Emitter
4 Collector
1
2
4
3
Emitter
Sensor
Left to Right Right to Left
0Width
Top to Bottom
0
Flag Travel for Graphs on page 4
DIMENSIONS ARE IN:
INCHES
[ MILLIMETERS]
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 12/06
Page 3 of 4
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
OPB854A1, OPB854A2, OPB854A3
OPB854B1, OPB854B2, OPB854B3
Absolute Maximum Ratings (TA=25°C unless otherwise noted)
Storage & Operating Temperature Range -40° C 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
Forward DC Current 50 mA
Peak Forward Current (1 μs 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
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) All parameters tested using pulse techniques.
(4) Lead spacing of 0.220” (5.59 mm) or 0.320” (8.13 mm) is available. Leads are 0.20” sq. (5.1 mm) and 0.425” (10.8 mm) long
(minimum).
(5) Methanol or isopropanol are recommended as cleaning agents. Plastic housing is soluble in chlorinated hydrocarbons and ketones.
(6) Polarity is denoted by color of housing top (gray or clear LED, black sensor).
Electrical Characteristics (TA = 25°C unless otherwise noted)
SYMBOL PARAMETER MIN TYP MAX UNITS TEST CONDITIONS
Input Diode (see OP140 for additional information)
VF Forward Voltage - - 1.7 V IF = 20 mA
IR Reverse Current - - 10 µA VR = 2 V
Output Phototransistor (see OP550 for additional information)
V(BR)CEO Collector-Emitter Breakdown Voltage 30 - - V IC = 1 mA
V(BR)ECO Emitter-Collector Breakdown Voltage 5 - - V IE = 100 µA
ICEO Collector Dark Current - - 100 nA VCE = 10 V, IF = 0, EE = 0
Combined
VCE(SAT)
Collector-Emitter Saturation Voltage
OPB854A series
OPB854B series
-
-
-
-
0.6
0.4
V
IC = 2 mA, IF = 16 mA
IC = 250 µA, IF = 20 mA
IC(ON)
On-State Collector Current
OPB854A series
OPB854B series
3
1
-
-
-
-
mA
VCE = 1 V, IF = 16 mA
VCE = 10 V, IF = 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 12/006
Page 4 of 4
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
OPB854A1, OPB854A2, OPB854A3
OPB854B1, OPB854B2, OPB854B3
Flag in Middle of Slot
0.0
0.2
0.4
0.6
0.8
1.0
1.2
0.00 0.05 0.10 0.15 0.20 0.25
Displacement Distance (inches)
Normal i ze d I
C(ON)
Response
Left to Right Right to Left
To
p
to Bottom
Flag Next to Emitter
0.0
0.2
0.4
0.6
0.8
1.0
1.2
0.00 0.05 0.10 0.15 0.20 0.25
Distance (inches)
Normalized I
C(ON)
Response
Left to Right Right to Left
To
p
to Bottom
Flag Next to Sensor
0.0
0.2
0.4
0.6
0.8
1.0
1.2
0.00 0.05 0.10 0.15 0.20 0.25
Distance (inches)
Normalized I
C(ON)
Response
Left to Right Right to Left
To
p
to Bottom
Output Current vs Forward Current vs
Temperature
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
0 5 10 15 20 25 30 35 40 45 50
Forward Current - mA
Normalized Outpu t Current
-40° C
-20° C
0° C
20° C
40° C
60° C
80° C
Normalized at I
F
= 16mA, T
A
= 20°C, V
CE
= 5V
