lhir4343r/t50/a-pf data sheet 21 - may. b doc. no : qw0905- rev. : date : - 2014 lhir4343r/t50/a-pf pb lead-free parts ligitek electronics co.,ltd. property of ligitek only infrared emitting diodes l dcc
the series are super-high efficiency gallium aluminum arsenide infrared emitting diodes encapsulated in water clear plastic t-1 3/4 package individually lhir4343r/t50/a-pf descriptions: features: 3. low average degradation. 2. suitable for pulse applications. 1. high radiant intensity. device selection guide: note : 1.all dimension are in millimeter tolerance is part no. 1/8 page + ??
note : 1.the forward voltage data did not including ?
3/8 page part no. lhir4343r/t50/a-pf max. min. 12 8 7 10 14 12 radiant intensity(mw/sr)at 50 ma brightness code for standard led lamps bin code group ligitek electronics co.,ltd. property of ligitek only 9 14 17 6 8 10 10 17 20
typical electro-optical characteristics curve ligitek electronics co.,ltd. property of ligitek only hir(r) chip part no. page4/8 lhir4343r/t50/a-pf
drive method: led is a current operated device, and therefore, require some kind of current limiting incorporated into the driver circuit. this current limiting typically takes the form of a current limiting resistor placed in series with the led. consider worst case voltage variations than could occur across the current limiting resistor. the forwrd current should not be allowed to change by more than 40% of its desired value. cleaning: use alcohol-based cleaning solvents such as isopropyl alcohol to clean the led. esd(electrostatic discharge): static electricity or power surge will damage the led. use of a conductive wrist band or anti-electrosatic glove is recommended when handing these led. all devices, equipment and machinery must be properly grounded. (a) recommended circuit. (b) the difference of brightness between led could be found due to the vf-if characteristics of led. circuit model a led circuit model b led lhir4343r/t50/a-pf part no. page 5/8 storage time: 1.the operation of temperatures and rh are : 5
anode side(cathode side on gaalas chips) 45
dip soldering preheat: 120 20 0 0 60 seconds max preheat note:1.wave solder should not be made more than one time. 2.you can just only select one of the soldering conditions as above. 100 25 120 260 120 ligitek electronics co.,ltd. property of ligitek only lhir4343r/t50/a-pf part no. soldering condition(pb-free) 1.iron: soldering iron:30w max temperature 320
mil-std-202: 210a mil-std-720: 2031 jis c 7021: a-1 this test intended to determine the thermal characteristic resistance of the device to sudden exposures at extreme changes in temperature when soldering the lead wire. this test intended to see soldering well performed or not. solderability test 1.t.sol=245
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