b b r r i i g g h h t t l l e e d d e e l l e e c c t t r r o o n n i i c c s s c c o o r r p p . . b b a a - - 8 8 e e 9 9 u u w w ver.1.0 page 1 of 3 since 1981 package dimensions : notes: 1. all dimensions are in millimeters(inches). 2. tolerance is 0.25mm(.01")unless otherwise specified. 3. specifications are subject to change without notice. features : 1. emitting area : 31.020.0 mm . 2. low power requirement. 3. excellent characters appearance. 4. solid state reliability. 5. categorized for luminous intensity. description : 1. the BA-8E9UW had uniform emitting light. 2. this product use hi-eff red chips, which are made from gaasp on gap substrate. 3. this product have a white face and white segments. 4. this product doesn't contain restriction substance, comply rohs standard. internal circuit diagram : 1.1 I??? http://www.brtled.com
b b r r i i g g h h t t l l e e d d e e l l e e c c t t r r o o n n i i c c s s c c o o r r p p . . b b a a - - 8 8 e e 9 9 u u w w ver.1.0 page 2 of 3 since 1981 absolute maximum ratings(ta=25 ) parameter symbol rating unit power dissipation per segment pd 320 mw forward current per segment i f 30 ma peak forward current per segment i fp (duty 1/10, 1khz) 150 ma reverse voltage per segment v r 5 v operating temperature topr -40 ~80 - storage temperature tstg -40 ~85 - soldering temperature (1/16" from body) ts o l 260 for 5 seconds - electrical and optical characteristics(ta=25 ) parameter symbol condition min. typ. max. unit forward voltage per segment vf i f =10ma - 7.6 10.0 v luminous intensity per segment iv i f =10ma - 8.0 - mcd reverse current per segment i r v r =5v - - 100 a peak wave length p i f =10ma - 635 - nm dominant wave length d i f =10ma - 630 - nm spectral line half-width ? i f =10ma - 45 - nm I??? http://www.brtled.com
b b r r i i g g h h t t l l e e d d e e l l e e c c t t r r o o n n i i c c s s c c o o r r p p . . b b a a - - 8 8 e e 9 9 u u w w ver.1.0 page 3 of 3 since 1981 typical electro-optical characteristics curves (25 ambient temperature unless otherwise noted) ambient temperature forward voltage 40 fig.4 relative luminous forward current(ma) forward voltage (v) r e l a t i v e l u m i n o u s i n t e n s i t y 30 20 10 0.5 ( @ 2 0 m a ) 0 1.5 1.0 f o r w a r d c u r r e n t ( m a ) forward current intensity vs. 1 2.0 0 234 30 20 10 50 40 ambient temperature ta( c) 50 20 f o r w a r d c u r r e n t ( m a ) 10 0 30 40 120 100 80 60 20 40 fig.5 forward current ambient temperature ta( c) r e l a t i v e l u m i n o u s i n t e n s i t y ( @ 2 0 m a ) 5 50 0 -40 1.0 0.5 1.5 2.5 2.0 3.0 ambient temperature derating curve vs. -20 0 20 60 40 fig.1 relative radiant intensity vs. wavelength fig.2 forward current vs. r e l a t i v e r a d i a n t i n t e n s i t y 560 0 590 0.5 1.0 680 fig.3 relative luminous wavelength(nm) 620 650 intensity vs. 710 740 I??? http://www.brtled.com
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