Datasheet
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 10/11
Page 4 of 6
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
Reflective Object Sensor
OPB708, OPB709
OPB740 Series, OPB740WZ Series
Electrical Characteristics (T
A
= 25°C unless otherwise noted)
SYMBOL PARAMETER MIN TYP MAX UNITS TEST CONDITIONS
Output R
BE
Phototransistor (See OP705 for general information — for reference only)
V
(BR)CEO
Collector-Emitter Breakdown Voltage 24 - - V I
C
= 100 µA
I
CEO
Collector Dark Current - - 100 nA V
CE
= 10 V, I
F
= 0, E
E
=0
Output Phototransistor (See OP505 for general information — for reference only)
V
(BR)CEO
Collector-Emitter Breakdown Voltage 30 - - V I
C
= 100 µA
V
(BR)ECO
Emitter-Collector Breakdown Voltage 5 - - V I
E
= 100 µA
I
CEO
Collector Dark Current - - 100 nA V
CE
= 10 V, I
F
= 0, E
E
=0
Output Photodarlington (See OP535 for general information — for reference only)
V
(BR)CEO
Collector-Emitter Breakdown Voltage 15 - - V I
C
= 100 µA
V
(BR)ECO
Emitter-Collector Breakdown Voltage 5 - - V I
E
= 100 µA
I
CEO
Collector-Emitter Dark Current
OPB709, OPB745, OPB745WZ
-
-
25
µA
V
CE
= 5 V, I
F
= 0, E
E
=0
Coupled
V
CE(SAT)
Saturation Voltage
OPB708
OPB709
-
-
-
-
0.40
1.10
V
I
F
= 40 mA, I
c
= 3 µA , d = 0.15”
(1)(2)
I
C(ON)
(1)(2)
On-State Collector Current
OPB708
OPB709
OPB740, OPB740WZ
OPB741, OPB741W Z
OPB742, OPB742WZ
OPB743, OPB743WZ
OPB744, OPB744WZ
OPB745, OPB745WZ
OPB746WZ
OPB747WZ
OPB748WZ
0.01
1.00
0.05
0.05
0.01
0.20
0.20
5.00
0.50
0.01
0.01
-
-
-
-
-
-
-
-
-
-
-
3.00
-
2.50
2.50
0.70
2.00
2.00
26.0
2.50
0.70
0.70
mA
V
CE
= 5 V, I
F
= 40mA ,
d = 0.15” (3.810 mm)
I
CX
(3)
Crosstalk
OPB708, OPB709,
OPB740, OPB740WZ
OPB741, OPB741WZ
OPB742, OPB742WZ
OPB743, OPB743WZ
OPB744, OPB744WZ
OPB745, OPB745WZ
OPB746WZ
OPB747WZ
OPB748WZ
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
10.0
10.0
1.0
20.0
20.0
25.0
1.0
1.0
1.0
µA
V
CC
= 5 V, I
F
= 40mA
Notes:
1. The distance from the assembly face to the reflective surface is “d”.
2. Reflective surface is Eastman Kodak (Catalog #190 3061) neutral white test card with 90% diffuse reflectance as a reflecting surface.
3. Crosstalk is the photocurrent measured with current to the input diode, no reflective surface and no ambient light (E
E
= 0).