Transmissive Sensor
HOA1885
DESCRIPTION
FEATURES
Choice of phototransistor or photodarlington
output
High profile package for raised optical centerline
Ambient light and dust protective filter
0.200 in.(5.08 mm) slot width
The HOA1885 series consists of an infrared emitting
diode facing an NPN silicon phototransistor
(HOA1885- 011, - 012) or photodarlington
(HOA1885- 013) encased in a black thermoplastic
housing with IR transmissive inserts which form the
optical windows. This arrangement provides excellent
protection against ambient light while eliminating
aperture openings which could be clogged by airborne
contaminants. The high profile package raises the
optical centerline to a nominal height of 0.063 in.(16.0
mm) from the mounting plane. This is a significant
feature for applications in which surrounding
components might interfere with the interrupting
element if the optical centerline were lower. Detector
switching takes place whenever an opaque object
passes through the slot between emitter and detector.
The HOA1885 series employs plastic molded
components and has a 0.050 in.(1.27 mm) x 0.060
in.(1.52 mm) vertical aperture in front of the detector.
For additional component information see
SEP8506/8706, SDP8406, and SDP8106.
Housing material is polycarbonate. Housings are
soluble in chlorinated hydrocarbons and ketones.
Recommended cleaning agents are methanol and
isopropanol.
.250(6.35)
.200(5.08)
.600(15.24)
.200(5.08)
.450(11.43)
.120(3.05) MIN.
.400(10.16)
.020(.51)
SQ. LEADS
TYP.
.719(18.26)
.059(1.50)
.630(16.10)
OPTICALC
L
CATHODE
ANODE
EMITTER
COLLECTOR
.040(1.01)
2 PLCS
.100(2.54)
DIM_055.ds4
INFRA-69.TIF
OUTLINE DIMENSIONS in inches (mm)
3 plc decimals
0.010(0.25)
Tolerance
2 plc decimals
0.020(0.51)
Honeywell reserves the right to make
changes in order to improve design and
supply the best products possible.
h
330
Transmissive Sensor
HOA1885
ELECTRICAL CHARACTERISTICS
UNITS
TEST CONDITIONS
MIN
PARAMETER
SYMBOL
TYP
MAX
IR EMITTER
DETECTOR
COUPLED CHARACTERISTICS
ABSOLUTE MAXIMUM RATINGS
(25C Free-Air Temperature unless otherwise noted)
Operating Temperature Range
-40C to 85C
Storage Temperature Range
-40C to 85C
Soldering Temperature (5 sec)
240C
IR EMITTER
Power Dissipation
100 mW []
Reverse Voltage
3 V
Continuous Forward Current
50 mA
DETECTOR
Collector-Emitter Voltage
30 V
Emitter-Collector Voltage
5 V
Power Dissipation
100 mW []
Notes
1. Derate linearly at 0.78 mW/C above 25C.
SCHEMATIC
Honeywell reserves the right to make
changes in order to improve design and
supply the best products possible.
h
331
Transmissive Sensor
HOA1885
IRED Forward Bias Characteristics
gra_092.ds4
Forward voltage - V
F
o
r
w
a
r
d
c
u
r
r
e
n
t
-
m
A
0
10
20
30
40
50
60
70
80
90
100
0.8
1.0
1.2
1.4
1.6
1.8
2.0
Pulsed
condition
T
A
= 25 C
T
A
= 80 C
T
A
= -40 C
Fig. 1
Non-Saturated Switching Time vs
Load Resistance
gra_096.ds4
Load resistance - Ohms
R
e
s
p
o
n
s
e
t
i
m
e
-
s
1
10
100
1000
10
100
1000
10000
Phototransistor
Photodarlington
Fig. 2
Dark Current vs
Temperature
gra_301.cdr
Fig. 3
Collector Current vs
Ambient Temperature
gra_095.ds4
Free-air temperature - C
N
o
r
m
a
l
i
z
e
d
c
o
l
l
e
c
t
o
r
c
u
r
r
e
n
t
0.0
0.6
1.2
-50
0.4
0.2
0.8
1.0
-25
0
25
50
100
75
Fig. 4
All Performance Curves Show Typical Values
Honeywell reserves the right to make
changes in order to improve design and
supply the best products possible.
h
332
Transmissive Sensor
HOA1885
Honeywell reserves the right to make
changes in order to improve design and
supply the best products possible.
h
333
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