Fea tures
High contrast ratio, 1000 to 1
minimum
Printed circuit board mount
Low cost plastic housing
De scrip tion
The OPB750T reflective assembly
features a phototransistor output
designed to decrease low-level light gain
while not affecting the high-level light
gain. Available without mounting tabs as
OPB750N.
Available with 12", 26 AWG wire leads as
OPB750/OPB755 series. Photologic
output sensors available in
OPB760/OPB770 series.
Ab so lute Maxi mum Rat ings (T
A
= 25
o
C un less oth er wise noted)
Stor age and Op er at ing Tem pera ture Range . . . . . . . . . . . . . . . . . . . -40
o
C to +85
o
C
Lead Sol der ing Tem pera ture [1/16 inch (1.6 mm) from case for 5 sec. with sol der ing
iron] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240
o
C
(2)
In put Di ode
For ward DC Cur rent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA
Peak For ward Cur rent (1
s pulse width, 300 pps) . . . . . . . . . . . . . . . . . . . . . . . . 3.0 A
Re verse DC Volt age. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.0 V
Power Dis si pa tion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 mW
(1)
Out put Pho to tran sis tor
Collector- Emitter Volt age. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 V
Col lec tor DC Cur rent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 mA
Power Dis si pa tion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 mW
(1)
Notes:
(1) Derate Linearly 1.67 mW/
o
C above 25
o
C.
(2) RMA flux is recommended. Duration can be extended to 10 sec. max. when flow soldering.
(3) All parameters tested using pulse technique.
(4) Methanol or isopropanol are recommended as cleaning agents. Plastic housing is soluble in
chlorinated hydrocarbons and ketones.
(5) Photocurrent is measured using an Eastman Kodak Neutral White test card having a 90%
diffuse reflectance as a reflecting surface . Reference: Eastman Kodak, Catalog #1257795.
(6) I
C(OFF)
is the photocurrent measured with current to the input diode and a 5% reflecting
surface.
Prod uct Bul le tin OPB750T
June 1996
Re flec tive Ob ject Sen sor
Type OPB750T
Op tek Tech nol ogy, Inc. 1215 W. Crosby Road Car roll ton, Texas 75006 (972) 323- 2200 Fax (972) 323- 2396
11-44
Type OPB750T
Distance to Reflective Surface - Inches
Normalized Collector Current vs.
Object Distance
Normalized to d = .150"
I
F
= 30 mA
V
CE
= 5.0 V
Normalized Ouput Current vs.
Forward Current
Forward Current - mA
Normalized to I
F
= 30 mA
V
CE
= 5 V
+2
Average
-2
+2
Average
-2
11-45
Elec tri cal Char ac ter is tics (T
A
= 25
o
C un less oth er wise noted)
SYM BOL
PA RAME TER
MIN MAX UNITS
TEST CON DI TIONS
In put Di ode
V
F
Forward Voltage
1.80
V
I
F
= 40 mA
I
R
Reverse Current
100
A
V
R
= 2.0 V
Out put Pho to tran sis tor
V
(BR)CEO
Collector-Emitter Breakdown Voltage
30
V
I
C
= 100
A
I
CEO
Collector Dark Current
100
nA
V
CE
= 10 V, I
F
= 0, H = 0
Cou pled
V
CE(SAT)
Saturation Voltage
0.40
V
I
C
= 150
A, I
F
= 30 mA, d = 0.22"
I
C(ON)
On-State Collector Current
500
375
250
A
A
A
V
CE
= 5 V, I
F
= 30 mA, d = 0.08"
(5)
V
CE
= 5 V, I
F
= 30 mA, d = 0.15"
(5)
V
CE
= 5 V, I
F
= 30 mA, d = 0.22"
(5)
I
C(OFF)
Off-State Collector Current
250
nA
I
F
= 30 mA, V
CE
= 5 V
(6)
,
d = 0.08", 0.15", 0.22"
Typi cal Per form ance Curves
Op tek re serves the right to make changes at any time in or der to im prove de sign and to sup ply the best prod uct pos si ble.
Op tek Tech nol ogy, Inc. 1215 W. Crosby Road Car roll ton, Texas 75006 (972) 323- 2200 Fax (972) 323- 2396
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