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HOA1872
Transmissive Sensor
FEATURES * Choice of phototransistor or photodarlington output
* Three sensitivity ranges * Choice of metal can package or plastic molded components * 0.100 in.(2.54 mm) slot width
INFRA-14.TIF
DESCRIPTION The HOA1872 series consists of an infrared emitting diode facing an NPN silicon phototransistor (HOA1872- 001, - 002, - 011, - 012) or photodarlington (HOA1872- 003, - 013) encased in a black thermoplastic housing. Detector switching takes place wherever an opaque object passes through the slot between emitter and detector. The HOA1872- 001, - 002 and - 003 have a 0.050 in.(1.27 mm)dia. detector aperture and employ metal can packaged components, while the HOA1872- 011, - 012, and - 013 have a 0.060 in.(1.52 mm) dia. detector aperture and contain plastic molded components. For additional component information see SE1450, SD1440, SD1410, SEP8506, SDP8406, and SDP8106. Housing material is polyester. 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)
.250(6.36) .125(3.18) .425(10.80) OPTICALC L .100(2.54) .350(8.89)
+ S
~ ~
.500(12.70)
.300(7.62)
EC KA
+ E
.200(5.10) .175(4.45) .300(7.62) MIN. .020(0.51) DIA FOR -001 THRU -003 .020(0.51) SQ FOR -011 THRU -013 .050(1.27) .100(2.54)
DIM_044.ds4
286
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Honeywell reserves the right to make changes in order to improve design and supply the best products possible.
~ ~
HOA1872
Transmissive Sensor
ELECTRICAL CHARACTERISTICS PARAMETER IR EMITTER SYMBOL MIN TYP MAX UNITS TEST CONDITIONS
DETECTOR
COUPLED CHARACTERISTICS
ABSOLUTE MAXIMUM RATINGS
(25C Free-Air Temperature unless otherwise noted)
ABSOLUTE MAXIMUM RATINGS (continued)
Continuous Forward Current DETECTOR Collector-Emitter Voltage Emitter-Collector Voltage Power Dissipation HOA1872-001, -002, -003 HOA1872-011, -012, -013 Collector DC Current 50 mA TRANS. 30 V 5V
Operating Temperature Range HOA1872-001, -002, -003 HOA1872-011, -012, -013 Storage Temperature Range HOA1872-001, -002, -003 HOA1872-011, -012, -013 Soldering Temperature HOA1872-001, -002, -003 HOA1872-011, -012, -013 IR EMITTER Power Dissipation HOA1872-001, -002, -003 HOA1872-011, -012, -013 Reverse Voltage
-55C to 100C -40C to 85C -55C to 125C -40C to 85C 260C (10 sec.) 240C (5 sec.)
DARLINGTON 15 V 5V
75 mW [A] 75 mW [A] 100 mW [A] 100 mW [A] 30 mA 30 mA
75 mW 100 mW 3V
Notes 1. Derate linearly at 0.71 mW/C above 25C. 2. Derate linearly at 0.78 mW/C above 25C.
Honeywell reserves the right to make changes in order to improve design and supply the best products possible.
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287
HOA1872
Transmissive Sensor
SCHEMATIC
sch_027.cdr
Fig. 1
IRED Forward Bias Characteristics
gra_092.ds4
100 90 80 70 60 50 40 30 20 10 0 0.8
Forward current - mA
Pulsed condition TA = 80 C TA = 25 C TA = -40 C
1.0 1.2 1.4 1.6 1.8 2.0
Forward voltage - V
Fig. 2
Non-Saturated Switching Time vs Load Resistance
Fig. 3
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Dark Current vs Temperature
gra_301.cdr
1000
Response time - s
100
Photodarlington
10
Phototransistor
1 10 100 1000 10000
Load resistance - Ohms
Fig. 4
Normalized collector current
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
gra_095.ds4
100
Free-air temperature - C
All Performance Curves Show Typical Values
288
h
Honeywell reserves the right to make changes in order to improve design and supply the best products possible.
HOA1872
Transmissive Sensor
Honeywell reserves the right to make changes in order to improve design and supply the best products possible.
h
289

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