1 copyright ? 2010, everlight americas inc . all rights reserved. release date : 5/2 8/ 201 3 . issue no: 1 rev : 1 www.everlightamericas.com 1.8mm round subminiature infrared led EAIST3224A1 features ? compatible with infrared and vapor phase reflow solder process. ? low fo rward voltage ? good spectral matching to si photodetector ? pb free ? the product itself will remain within rohs compliant version. descriptions ? EAIST3224A1 is an infrared emitting diode in miniature smd package which is molded in a water clear plastic w ith spherical top view lens. ? the device is spectrally matched with silicon photodiode and phototransistor. applications ? pcb mounted infrared sensor ? infrared emitting for miniature light barrier ? floppy disk drive ? optoelectronic switch ? smoke detecto r device selection guide part category chip material lens color EAIST3224A1 gaalas water clear
data sheet 1.8mm round subminiature infrared led EAIST3224A1 2 copyright ? 2010, everlight americas inc . all rights reserved. release date : 5/2 8/ 201 3 . issue no: 1 rev : 1 www.everlightamericas.com package dimensions notes: 1.all dimensions are in millimeters 2.tolerances unless dimensions 0.1mm
data sheet 1.8mm round subminiature infrared led EAIST3224A1 3 copyright ? 2010, everlight americas inc . all rights reserved. release date : 5/2 8/ 201 3 . issue no: 1 rev : 1 www.everlightamericas.com absolute max imum ratings (ta=25 parameter symbol rating unit continuous forward current i f 65 ma reverse voltage v r 5 v operating temperature t opr - 25 ~ +85 storage temperature t stg - 40 ~ +85 soldering temperature *1 t sol 260 power dissipation at(or below) 25 free air temp erature p d 130 mw notes: *1 soldering time Q 5 seconds. electro - optical characteristics (ta=25 parameter symbol condition min. typ. max. unit radiant intensity i e i f =20ma 1.0 3.0 -- mw /sr peak wavelength p i f =20ma -- 940 -- nm spectral bandwidth ? i f =20ma -- 45 -- nm forward voltage v f i f =20ma -- 1.2 1.5 v reverse current i r v r =5v -- -- 10 a view angle 2 1/2 i f =20ma -- 30 -- deg
data sheet 1.8mm round subminiature infrared led EAIST3224A1 4 copyright ? 2010, everlight americas inc . all rights reserved. release date : 5/2 8/ 201 3 . issue no: 1 rev : 1 www.everlightamericas.com typical electro - optical characteristics curves fig.1 forward current vs. fig.2 spectr al distributio n ambient temperature fig. 3 forward current fig. 4 relative intensity vs. vs. forward voltage forward current 0 20 40 60 80 100 i f =20ma ta=25 c 0 -40 -20 40 20 0 60 100 80 20 40 60 100 80 120 140 0 10 10 1 10 2 3 10 4 1 2 3 4 0 i f -forward current (ma ) 10 10 0 10 1 10 2 3 10 4 ie-radiant intensity(mw/sr) 10 100 1000
data sheet 1.8mm round subminiature infrared led EAIST3224A1 5 copyright ? 2010, everlight americas inc . all rights reserved. release date : 5/2 8/ 201 3 . issue no: 1 rev : 1 www.everlightamericas.com typical electro - optical characteristics curves fig. 5 re lative radiant intensity vs. angular displacement -20 0.6 0.9 0.7 0.8 1.0 0.2 0.4 0 0.2 0.4 0.6 50 70 80 60 40 30 -10 0 20 10
data sheet 1.8mm round subminiature infrared led EAIST3224A1 6 copyright ? 2010, everlight americas inc . all rights reserved. release date : 5/2 8/ 201 3 . issue no: 1 rev : 1 www.everlightamericas.com precautions for use 1. over - current - proof customer must a pply resistors for protection, otherwise slight voltage shift will cause big current change (burn out will happen ). 2. storage 2.1 do not open moisture proof bag before the products are ready to use. 2.2 before opening the package: the leds should be kept at 30 or less and 90%rh or less. 2.3 the leds should be used within a year. 2.4 after opening the package, the leds should b e kept at 30 or less and 6 0%rh or less. 2.5 the leds should be used within 168 hours (7 days) after opening the package. 2. 6 if the moisture absorbent material (silica gel) has faded away or the leds have exceeded the storage time, baking treatment sho uld be performed using the following conditions. baking treatment : 605 for 48 hours. 3. soldering condition 3.1 pb - free solder temperature profile 3.2 reflow soldering should not be done more than two times. 3.3 when sold ering, do not put stress on the leds during heating. 3.4 after soldering, do not warp the circuit board.
data sheet 1.8mm round subminiature infrared led EAIST3224A1 7 copyright ? 2010, everlight americas inc . all rights reserved. release date : 5/2 8/ 201 3 . issue no: 1 rev : 1 www.everlightamericas.com 4. soldering iron each terminal is to go to the tip of soldering iron temperature less than 350 for 3 seconds within once in less than the solde ring iron capacity 25w. leave two seconds and more intervals, and do soldering of each terminal. be careful because the damage of the product is often started at the time of the hand solder. 5. repairing repair should not be done after the leds have been soldered. when repairing is unavoidable, a double - head soldering iron should be used (as below figure). it should be confirmed beforehand whether the characteristics of the leds will or will not be damaged by repairing.
data sheet 1.8mm round subminiature infrared led EAIST3224A1 8 copyright ? 2010, everlight americas inc . all rights reserved. release date : 5/2 8/ 201 3 . issue no: 1 rev : 1 www.everlightamericas.com package dimensions note: the tolerances unless mentioned are 0.1, unit=mm. carrier taping dimensions : loaded quantity 1 000pcs/reel unit: mm
data sheet 1.8mm round subminiature infrared led EAIST3224A1 9 copyright ? 2010, everlight americas inc . all rights reserved. release date : 5/2 8/ 201 3 . issue no: 1 rev : 1 www.everlightamericas.com label form specification cpn: customers production number p/n : production number qty: packing quantity cat: ranks hue: peak wavelength ref: reference lot no: lot number notes 1. above specification may be changed without notice. everlight americas will reserve authority on material change for above speci fication. 2. when using this product, please observe the absolute maximum ratings and the instructions for using outlined in these specification sheets. everlight americas assumes no responsibility for any damage resulting from use of the product which does n ot comply with the absolute maximum ratings and the instructions included in these specification sheets. 3. these specification sheets include materials protected under copyright of everlight americas corporation. please dont reproduce or cause anyone to re produce them without everlight americas s consent.
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