HOA1877
Transmissive Sensor
FEATURES
•
Choice of phototransistor or photodarlington
output
•
Wide operating temperature range
(- 55¡C to +100¡C)
•
0.50 in.(12.7 mm) high optical axis position
•
0.375 in.(9.52 mm) slot width
INFRA-47.TIF
DESCRIPTION
The HOA1877 series consists of an infrared emitting
diode facing an NPN silicon phototransistor
(HOA1877- 001, - 002) or photodarlington
(HOA1877- 003) encased in a black thermoplastic
housing. Detector switching takes place whenever an
opaque object passes through the slot between emitter
and detector. The HOA1877 series has a 0.050 in.(1.27
mm) dia. detector aperture and employs metal can
packaged components. For additional component
information see SE1450, SD1440, and SD1410.
Housing material is polycarbonate. Housings are
soluble in chlorinated hydrocarbons and ketones.
Recommended cleaning agents are methanol and
isopropanol.
OUTLINE DIMENSIONS
in inches (mm)
Tolerance
3 plc decimals
±0.010(0.25)
2 plc decimals
±0.020(0.51)
DIM_049.cdr
306
h
Honeywell reserves the right to make
changes in order to improve design and
supply the best products possible.
HOA1877
Transmissive Sensor
ELECTRICAL CHARACTERISTICS
PARAMETER
IR EMITTER
SYMBOL
MIN
TYP
MAX
UNITS
TEST CONDITIONS
DETECTOR
COUPLED CHARACTERISTICS
ABSOLUTE MAXIMUM RATINGS
(25¡C Free-Air Temperature unless otherwise noted)
Operating Temperature Range
Storage Temperature Range
Soldering Temperature (10 sec)
IR EMITTER
Power Dissipation
Reverse Voltage
Continuous Forward Current
DETECTOR
Collector-Emitter Voltage
Emitter-Collector Voltage
Power Dissipation
Collector DC Current
-55¡C to 100¡C
-55¡C to 125¡C
260¡C
75 mW [À]
3V
50 mA
TRANS.
30 V
5V
75 mW [À]
30 mA
SCHEMATIC
DARLINGTON
15 V
5V
75 mW [À]
30 mA
Honeywell reserves the right to make
changes in order to improve design and
supply the best products possible.
h
307
HOA1877
Transmissive Sensor
Fig. 1
IRED Forward Bias Characteristics
gra_092.ds4
Fig. 2
Non-Saturated Switching Time vs
Load Resistance
1000
gra_096.ds4
100
90
80
70
60
50
40
30
20
10
0
0.8
Forward current - mA
Response time - µs
Pulsed
condition
T
A
= 80 °C
T
A
= 25 °C
T
A
= -40 °C
1.0
1.2
1.4
1.6
1.8
2.0
100
Photodarlington
10
Phototransistor
1
10
100
1000
10000
Forward voltage - V
Fig. 3
Dark Current vs
Temperature
Fig. 4
gra_303.cdr
Load resistance - Ohms
Collector Current vs
Ambient Temperature
1.2
1.0
0.8
0.6
0.4
0.2
0.0
-50
-25
0
25
50
75
100
gra_095.ds4
Normalized collector current
Free-air temperature - °C
All Performance Curves Show Typical Values
308
h
Honeywell reserves the right to make
changes in order to improve design and
supply the best products possible.
HOA1877
Transmissive Sensor
Honeywell reserves the right to make
changes in order to improve design and
supply the best products possible.
h
309
MEMS sensors
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