infrared light emitting diodes 1 publication date: august 2007 shc00014ced ln59, lna2702l (LN59L) gaas infrared light emitting diodes for light source of vcr (vhs system) features ? two-way directivity ? high-power output, high-efficiency: p o = 1.8 mw (min.) ? small resin package ? long lifetime, high reliability ? long lead wire type: lna2702l (LN59L) absolute maximum ratings t a = 25 c parameter symbol conditions min typ max unit forward voltage v f i f = 50 ma 1.3 1.5 v reverse current i r v r = 3 v 10 a radiant power * p o i f = 50 ma 1.8 mw peak emission wavelength p i f = 20 ma 940 nm spectral half band width ? i f = 20 ma 50 nm terminal capacitance c t v r = 0 v, f = 1 mhz 35 pf electrical-optical characteristics t a = 25 c 3 c ln59 unit: mm lna2702l unit: mm 1: anode 2: cathode 1: anode 2: cathode parameter symbol rating unit reverse voltage v r 3v forward current i f 50 ma pulse forward current * i fp 1a power dissipation p d 75 mw operating ambient temperature t opr ? 25 to + 85 c storage temperature t stg ? 40 to + 100 c p1 p2 note) * : f = 100 hz, duty cycle = 0.1% note) 1. measuring methods are based on japanese industrial standard jis c 7031 measuring methods for diodes. 2. cutoff frequency: 1 mhz f c : 10 log p o at f = f c = ? 3 p o at f = 50 khz 3. * : radiant power p o shows each value of radiant flux p1 and p2 in two directions. note) the part numbers in the parenthesis show conventional part number. 2.54 1 2 0.5 0.1 0.5 0.1 0.8 max. 1.8 0.2 c0.5 4.0 0.2 6.0 0.2 15.3 1.0 not soldered 4.0 0.2 1.0 0.3 max. 3.3 1.0 2.5 0.2 2-r1.25 0.1 2.54 1 2 2-0.5 0.1 2-0.8 0.15 2-0.5 0.1 2-0.5 0.1 2-0.8 0.15 1.8 0.2 c0.5 4.0 0.2 6.0 0.2 33.7 0.5 not soldered 4.0 0.2 16.6 3.5 2.5 0.2 2-r1.25 0.1 1.0 3.3 1.0 maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://panasonic.net/sc/en
2 ln59, lna2702l shc00014ced i f t a i fp duty cycle i f v f p o i fp p t a spectral characteristics directivity characteristics v f t a p o t a ambient temperature t a ( c) forward current i f (ma) 60 50 40 30 20 10 0 0 20406080100 ? 25 10 2 10 1 pulse forward current i fp (a) relative radiant power ? p o 1 10 ? 1 10 ? 2 10 ? 1 10 ? 3 10 ? 2 (1) t w = 10 s f = 100 hz (2) dc t a = 25 c 1.6 1.2 0.8 0.4 0 ambient temperature t a ( c) forward voltage v f (v) ? 40 0 40 80 120 i f = 50 ma 10 ma 1 ma duty cycle (%) pulse forward current i fp (a) t w = 10 s t a = 25 c 10 2 10 1 10 ? 1 10 10 2 1 10 ? 2 10 ? 1 80 60 40 20 forward voltage v f (v) forward current i f (ma) 0.4 1.2 1.6 0.8 0 0 t a = 25 c (1) (2) 10 3 10 2 ambient temperature t a ( c) i f = 20 ma relative radiant power ? p o ? 40 0 40 80 10 1 000 980 960 940 920 900 ambient temperature t a ( c) i f = 20 ma peak emission wavelength p (nm) ? 40 0 40 80 120 100 60 80 40 20 wavelength (nm) relative radiant intensity (%) 900 940 980 1 020 1 060 1 100 0 860 i f = 20 ma t a = 25 c 90 100 110 120 60 70 80 130 140 150 160 170 180 50 40 30 20 10 0 relative radiant intensity (%) 80 60 40 20 80 60 40 20
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