Long Distance Reflective Switch

Long Distance Reflective Switch
OPB732, OPB732WZ
OPB732
Features:
•
•
•
•
PC board mounting (OPB732)
24” (610 mm) 26 AWG wired with mounting tabs (OPB732WZ)
Non-contact infrared switch
Up to 1” or more reflective distance depending on circuitry
OPB732WZ
Description:
OPB732 uses an Infrared LED and Phototransistor in a reflective switch configuration. The assembly is offered
with either PCBoard through hole pins (OPB732) or 24” (610 mm), 26 AWG wires (OPB732WZ), and uses an
opaque housing to reduce the sensor’s ambient light sensitivity. The emitter and sensor are protected by a clear
window, providing a device that can operate in a dusty environment. The phototransistor can be configured as a
Common Collector or Common Emitter device.
While an object is in the reflective path of the device, light from the LED will be reflected back to the housing
irradiating the surface (base) of the phototransistor. When Infrared light strikes the phototransistor, the transistor
becomes forward biased and is considered to be in the “ON” state, providing an IC(ON) current proportional to the
light striking the phototransistor. With the Infrared light from the LED not being reflected to the phototransistor, the
phototransistor turns “OFF,” minimizing the IC(ON) current.
Custom electrical, wire and cabling and connectors are available. Contact your local representative or OPTEK for
more information.
Applications:
•
•
•
•
Non-contact reflective object sensor
Assembly line automation
Machine automation
•
•
•
Ordering Information
Door sensor
Machine safety
Part
Number
End of travel sensor
OPB732
Equipment security
LED Peak
Wavelength
OPB732WZ
850 nm
Lead Length / Spacing
0.150”/ see diagram
24" / 26 AWG Wire
[ MILLIMETERS]
DIMENSIONS ARE IN:
3
INCHES
2
[7.62]
.300
MIN.
4
1
OPB732
RoHS
Pin #
LED
Green-1
Emitter
White-2
Collector
Red-3
Anode
Black-4
Cathode
OPB732WZ
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 [email protected] www.optekinc.com
Issue C 08/2011
Page 1 of 3
Long Distance Reflective Switch
OPB732, OPB732WZ
Absolute Maximum Ratings (TA = 25o C unless otherwise noted)
Storage Temperature
-40° C to +100° C
Operating Temperature
-40° C to +85° C
Lead Soldering Temperature (1/16” (1.6mm) from case for 5 seconds with soldering iron)(2)
260° C
LED
Forward Current
50 mA
Peak Forward current (2 μs pulse width, 0.1% Duty Cycle)
1A
Reverse DC Voltage
3V
Power Dissipation
100 mW
Output Photo Transistor
Collector-Emitter Voltage
30 V
Collector DC Current
50 mA
Power Dissipation
100 mW
Electrical Characteristics (TA = 25°C unless otherwise noted)
SYMBOL
PARAMETER
MIN
TYP
MAX
UNITS
CONDITIONS
Input LED (See OP265 for additional information, reference only)
VF
Forward Voltage
-
-
1.8
V
IF = 20 mA
IR
Reverse Current
-
-
100
μA
VR = 2 V
Output Phototransistor (See OP505 for additional information, reference only)
V(BR)CEO
ICEO
30
-
-
V
IC = 100 µA, EE = 0 mw/cm2
Collector-Emitter Dark Current
-
-
100
nA
VCE = 10 V, EE = 0 mw/cm2
Collector-Emitter Saturation Voltage(4)
-
-
0.4
V
IC = 250 µA, IF = 30 mA , (4)
0.25
-
-
mA
VCE = 1 V, IF = 30 mA, (4)
-
-
50
µA
VCE = 5 V, IF = 30 mA,
No reflective surface
Collector-Emitter Breakdown Voltage
Coupled
VCE(SAT)
IC(ON)
ICX
On-State Collector Current(4)
Cross Talk
Notes:
(1) All parameters tested using pulse technique.
(2) RMA flux is recommended. Duration can be extended to 10 seconds maximum when flow soldering.
(3) Methanol or isopropanol are recommended as cleaning agents. The plastic housing is soluble in
chlorinated hydrocarbons and keytones.
(4) Distance = 1” (from front of package to a 90% diffuse reflective white card)
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
Issue C
08/2011
Page 2 of 3
OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006
Phone: (972) 323-2200 or (800) 341-4747
FAX: (972) 323-2396 [email protected] www.optekinc.com
Long Distance Reflective Switch
OPB732, OPB732WZ
IC(ON)IC(ON)
vs Distance
vs Distance(I(IF=30mA)
F=30mA)
1.6
Normalized at 1.00 inches
1.4
Normalized IC(ON)
1.2
1.0
0.8
0.6
0.4
0.2
3.00
2.50
2.00
1.50
1.00
0.50
0.00
0.0
Distance (inches)
DC—Drive Circuit for LED & Phototransistor
VCC
V
- VLED
R D = CC
ID
RD
RL
VCC
V
- VCE
RL = CC
IL
V
- VLED
RD = CC
ID
Inverted
Output
Light
RD
Light
Output
RL
VEE (GND)
V
- VCE
RL = CC
IL
(GND)
V
EE
Pulsed - Driver
Circuits
forLED
LED &
& Phototransistor
Phototransistor
Pulsed—Drive
Circuit
for
VCC
V
- VLED - VCE
R D = CC
ID
RD
RL
Light
Drive
Ckt.
V
CC
V
- VCE
RL = CC
IL
V
- VLED - VCE
R D = CC
ID
Inverted
Output
RD
Light
Output
Drive
Ckt.
RL
VEE (GND)
-V
V
CE
RL = CC
IL
VEE (GND)
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 [email protected] www.optekinc.com
Issue C 08/2011
Page 3 of 3