doc. no : qw0905- rev. : a date : tower type led lamps ligitek electronics co.,ltd. property of ligitek only LSR22740-PF data sheet 05 - sep. - 2006 LSR22740-PF lead-free parts pb
package dimensions note : 1.all dimension are in millimeter tolerance is 0.25mm unless otherwise noted. 2.specifications are subject to change without notice. directivity radiation 75% 25% -60 75% 100%50% -30 25% 0 50% 0 30 60 100% ligitek electronics co.,ltd. property of ligitek only part no. LSR22740-PF page 1/5 + - 4.4 1.5 max 2.54typ 0.5 typ 3.8 3.0 5.0 25.0min 1.0min
red diffused color lens gaalas material LSR22740-PF part no red emitted 90 luminous intensity @20ma(mcd) typ. 20 spectral halfwidth nm 660 peak wave length pnm 2.4 max. forward voltage @ ma(v) 1.5 min. 20 50 min. viewing angle 2 1/2 (deg) 54 2/5 page ligitek electronics co.,ltd. property of ligitek only unit ma ma a mw 30 100 sr ratings 10 ir -40 ~ +85 -40 ~ +100 100 forward current peak forward current duty 1/10@10khz parameter operating temperature storage temperature reverse current @5v power dissipation typical electrical & optical characteristics (ta=25 ) symbol t opr tstg i f pd i fp absolute maximum ratings at ta=25 note : 1.the forward voltage data did not including 0.1v testing tolerance. 2. the luminous intensity data did not including 15% testing tolerance. LSR22740-PF part no.
fig.3 forward voltage vs. temperature fig.5 relative intensity vs. wavelength ambient temperature( ) r e l a t i v e i n t e n s i t y @ 2 0 m a wavelength (nm) f o r w a r d v o l t a g e @ 2 0 m a n o r m a l i z e @ 2 5 fig.4 relative intensity vs. temperature ambient temperature( ) r e l a t i v e i n t e n s i t y @ 2 0 m a n o r m a l i z e @ 2 5 typical electro-optical characteristics curve forward voltage(v) fig.1 forward current vs. forward voltage f o r w a r d c u r r e n t ( m a ) forward current(ma) fig.2 relative intensity vs. forward current r e l a t i v e i n t e n s i t y n o r m a l i z e @ 2 0 m a ligitek electronics co.,ltd. property of ligitek only 1.0 0.1 1.0 10 100 1000 1.0101001000 0.0 0.5 1.0 1.5 2.0 2.5 3.0 -40-200204060 1.0 1.1 1.2 600650700750 0.0 0.5 1.0 2.03.04.05.0 80100 0.8 0.9 -20 -4040 20 080100 60 2.0 0.0 0.5 1.0 1.5 2.5 3.0 sr chip page 3/5 LSR22740-PF part no.
temp( c) 25 0 0 120 260 2 /sec max preheat 50 5 /sec max 100 260 c3sec max 150 time(sec) dip soldering preheat: 120 c max preheat time: 60seconds max ramp-up 2 c/sec(max) ramp-down:-5 c/sec(max) solder bath:260 c max dipping time:3 seconds max distance:2mm min(from solder joint to body) soldering condition(pb-free) 1.iron: soldering iron:30w max temperature 350 c max soldering time:3 seconds max(one time only) distance:2mm min(from solder joint to body) ligitek electronics co.,ltd. property of ligitek only 2.wave soldering profile page 4/5 60 seconds max LSR22740-PF part no. 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.
this test intended to see soldering well performed or not. the purpose of this test is the resistance of the device under tropical for hours. 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. the purpose of this is the resistance of the device to sudden extreme changes in high and low temperature. this test is conducted for the purpose of detemining the resistance of a part in electrical and themal stressed. the purpose of this is the resistance of the device which is laid under condition of high temperature for hours. the purpose of this is the resistance of the device which is laid under condition of low temperature for hours. description ligitek electronics co.,ltd. property of ligitek only 1.t.sol=230 5 2.dwell time=5 1sec solderability test reliability test: high temperature storage test 1.ta=105 5 2.t=1000 hrs (-24hrs, +72hrs) 1.ta=105 5 &-40 5 (10min) (10min) 2.total 10 cycles 1.t.sol=260 5 2.dwell time= 10 1sec. 1.ta=65 5 2.rh=90%~95% 3.t=240hrs 2hrs 1.ta=-40 5 2.t=1000 hrs (-24hrs, +72hrs) thermal shock test solder resistance test high temperature high humidity test low temperature storage test 1.under room temperature 2.if=20ma 3.t=1000 hrs (-24hrs, +72hrs) test condition operating life test test item mil-std-202: 208d mil-std-750: 2026 mil-std-883: 2003 jis c 7021: a-2 mil-std-883:1008 jis c 7021: b-10 mil-std-202: 107d mil-std-750: 1051 mil-std-883: 1011 mil-std-202: 210a mil-std-750: 2031 jis c 7021: a-1 mil-std-202:103b jis c 7021: b-11 jis c 7021: b-12 mil-std-750: 1026 mil-std-883: 1005 jis c 7021: b-1 reference standard 5/5 page LSR22740-PF part no.
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