opb 740 series reflective object sensors bedford opto technology ltd lindsaylands, biggar, ml12 6nr tel: +44 (0) 1899 221221 fax: +44 (0) 1899 221009 website: bot.co.u k e - mail: bill@bot.co.uk description the opb740 through opb744 series of reflective object sensors each consist of an infrared emitting diode and an npn silicon phototransistor mounted side by side on converging optical axes in an black plastic housing. various options include cho ice of no windows, blue polysulfone windows for dust protection or opaque windows with offset openings for improved resolution. available with wires as opb740w / opb744w series. the opb 745 reflective object sensor consists of an infrared emitting diode a nd an npn silicon photodarlington mounted side by side on converging optical axes in a black plastic housing. replaces opb 740 = k8700 no windows opb 741 = k8701 blue windows opb 742 = k8708 offset windows opb 743 = k871 0 no windows opb 744 = k8711 blue windows opb 745 = k8709 offset windows opb 740w = k8702 no windows/wires opb 741w = k8703 blue windows/wires opb 742w = k8712 no windows/wires opb 744w = k8713 iss a 2.3.01 15.1+/-0.1 17.8 +/-0.1 3.9 3.1 9.5 5 2.54 3.18 1.52 5.0 +/-0.1 opb740 opb743 opb741 opb744 opb742 reflective surface a k e c wire connection orange anode green cathode white collector blue emitter 0.5 sq nom 3.81 nom r1.52 mechanical data notes 1 rma flux is recommended. duration can be extended to 10sec. max. when flow soldering. 2 derate linearly 1.82mw/ o c above 26 o c 3 d is distance from the assembly face to the reflective surface. 4 reflective surface is eastam kodak neutral white t est card with 90% diffuse reflectance as a .... reflective surface. 5 lower curve is based on calculated worst case condition rath er than the conventional - 20 limit. 6 crosstalk is the photocurrent measured with current to the input diode & no reflecting surfa ce. 7 all parameters tested using pulse technique.
bedford opto technology ltd lindsaylands, biggar, ml12 6nr tel: +44 (0) 1899 221221 fax: +44 (0) 1899 221009 absolute maximum ratings (25 o c unless otherwise noted) parameter symbol min max units test condi s- tions input diode forward voltage vf 1.70 v if = 40ma reverse current ir 100 m a vr = 2.0v output phototransistor collector - emitter breakdown v(br)ceo 30.0 v ic = 100 m a emitter - collector breakdown v(br)eco 5.0 v ie = 100 m a collector - emitter dark current iceo 100 na vce= 10.0v, if = 0, ee coupled characteristics on state collector current opb740/opb741/w opb742/w opb743/opb744/w ic(on) (3) (4) 50 10 m a m a vce=5.0v, if=40ma, d=150? crosstalk opb740/opb741/w opb742/w opb743/opb744/w icx (6) 10 100 m a na vce=5v, if=40ma, output photodarlington opb745. opb745w collector - emitter breakdown vol t- v(br)ceo 15.0 v ic = 100 m a emitter - collector breakdown vol t- v(br)eco 5.0 v ie = 100 m a collector dark current iceo 250 na vce = 10.0v, if = 0, on - state collector current ic(on) (3) 1.00 ma vce=5.0v, if=40ma, crosstalk icx (2) 250 na vcc=5v, if=40ma coupled input diode forward dc current reverse dc voltage 40ma 2.0v output sensor collector - emitter voltage emitter - collector voltage 30v 5.0v output photodarlington collector - emitter voltage emitter - collector voltage 15.0v 5.0v operating temp - 40 c to +80 o c storage temp - 40 c to +80 o c lead soldering temp 240 o c (1) opb 740 series opto electronic data(ta=25 o c) iss a 2.3.01
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