doc. no : qw0905-l8ug9253-1/s5 rev. : a date : 17 - sep. - 2014 data sheet l8ug9253-1/s5 ligitek electronics co.,ltd. property of ligitek only axial type led lamps pb lead-free parts l dcc
directivity radiation note : 1.all dimension are in millimeter tolerance is ? part no. l8ug9253-1/s5 page 1/6 ligitek electronics co.,ltd. property of ligitek only 7.62 1.65 0.25 typ 5.5
v 2000 esd electrostatic discharge( * ) emitted note : 1.the forward voltage data did not including ? ?R R R R
40 50 60 2.5 1.5 1.0 0.5 0.5 1.0 fig.5 relative intensity vs. wavelength 650 550600 500 0 wavelength (nm) r e l a t i v e i n t e n s i t y @ 2 0 m a part no. l8ug9253-1/s5 8ug chip typical electro-optical characteristics curve 60 4080 -20020020 2.5 2.0 1.5 1.0 1.1 1.0 1.2 0.9 2.0 1.0 0.5 0 6080 -2040 0.8 3.0 2.0 0 1000 100 10 1.0 30 20 10 0 0 ligitek electronics co.,ltd. property of ligitek only 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 fig.2 relative intensity vs. forward current forward current(ma) page 3/6 f o r w a r d c u r r e n t ( m a ) fig.1 forward current vs. forward voltage forward voltage(v) 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 " ambient temperature( " ) fig.4 relative intensity vs. temperature 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 @ 2 5 " ambient temperature( " ) fig.3 forward voltage vs. temperature
temp. ( within 5 sec 120 ~ 180 sec 3. lead reflow solder 120 ~ 150 Q
drive method: led is a current operated device, and therefore, requirer 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 page 5/6 precautions for use: storage time: 1.the operation of temperatures and rh are : 5 R
solderability test environmental test temperature cycling solderability test thermal shock test solder resistance test high temperature high humidity storage test ramp-up rate(183 R 120 seconds max temp. maintain above 183 time within 5 R ~ 25 ~ 55 ~ 25 R ? RR R
|
