reflective sensor HOA0708/0709 description features choice of phototransistor or photodarlington output focused for maximum response ambient light and dust protective filter adjustable mounting slot the HOA0708/0709 series consists of an infrared emitting diode and an npn silicon phototransistor (HOA0708-001, -011) or photodarlington (hoa0709-001, -011) encased side-by-side on converging optical axes in a black thermoplastic housing. the detector responds to radiation from the ired only when a reflective object passes within its field of view. the HOA0708-011 and hoa0709-011 employ an ir transmissive filter to minimize the effects of visible ambient light and provide a smooth optical face which prevents the accumulation of airborne contaminants in the optical path. the HOA0708/0709 series employs plastic molded components. for additional component information see sep8505, sdp8405, and sdp8105. housing material is polycarbonate. housings are soluble in chlorinated hydrocarbons and ketones. recommended cleaning agents are methanol and isopropanol. .390(9.91) .370(9.40) .710(18.03) .690(17.53) .210(5.33) .190(4.83) -011 includes an integral ambient light filter .110(2.79) .090(2.29) nom .210(5.33) .190(4.83) nom a k e c .020(.51) sq.leads .130(3.30) .120(3.05) .160(4.06) .140(3.56) .150(3.81) min .610(15.49) .586(14.98) .15(3.80) test surface .0.62(1.60)r 2 plcs dim_033.ds4 infra-56.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 232
reflective sensor HOA0708/0709 electrical characteristics units test conditions min parameter symbol typ max ir emitter detector coupled characteristics absolute maximum ratings operating temperature range -40?c to 85?c storage temperature range -40?c to 85?c soldering temperature (5 sec) 240?c ir emitter power dissipation 70 mw [] reverse voltage 3 v continuous forward current 50 ma detector trans. darlington collector-emitter voltage 30 v 15 v emitter-collector voltage 5 v 5 v power dissipation 70 mw [] 70 mw [] collector dc current 30 ma 30 ma schematic
reflective sensor HOA0708/0709 ired forward bias characteristics gra_073.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 = 80c t a = -40c t a = 25c fig. 1 non-saturated switching time vs load resistance gra_079.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
reflective sensor HOA0708/0709 honeywell reserves the right to make changes in order to improve design and supply the best products possible. h 235
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