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| HOA1877 Transmissive Sensor FEATURES * Choice of phototransistor or photodarlington output * Wide operating temperature range (- 55C to +100C) * 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 (25C 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 -55C to 100C -55C to 125C 260C 75 mW [A] 3V 50 mA TRANS. 30 V 5V 75 mW [A] 30 mA SCHEMATIC DARLINGTON 15 V 5V 75 mW [A] 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 - s Pulsed condition TA = 80 C TA = 25 C TA = -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 |
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