1 visible light emitting diodes (red) lna4501f (ln124w) gaalas red light emitting diode for optical fiber communications and control systems ?4.4 0.2 ?4.8 0.2 c0.2 2.54 2-1.0 0.1 2- 0.6 0.15 5.0 0.2 ?5.4 0.2 12.5 1.0 4.4 0.3 1.0 1 2 not soldered 2.0 max. (1.5) 1: cathode 2: anode unit : mm features red light emission close to monochromatic light : p = 680 nm high-power output, high-efficiency : p o = 3 mw high coupling characteristics and suits to a plastic fiber high-speed response : C3db modulation of 10 mhz flat resin package : ? 4.8 mm absolute maximum ratings (ta = 25?c) parameter symbol ratings unit power dissipation p d 120 mw forward current (dc) i f 40 ma pulse forward current i fp * 200 ma reverse voltage (dc) v r 3v operating ambient temperature t opr C25 to +85 ?c storage temperature t stg C30 to +100 ?c * t w = 10 s, duty cycle = 10 % electro-optical characteristics (ta = 25?c) parameter symbol conditions min typ max unit radiant power p o i f = 20ma 1 3 mw peak emission wavelength p i f = 20ma 680 nm spectral half band width ? i f = 20ma 20 nm forward voltage (dc) v f i f = 20ma 1.8 2.6 v reverse current (dc) i r v r = 3v 100 a response time t r , t f i fp = 100ma 30 ns half-power angle the angle in which radiant intencity is 50% 30 deg. note : before using this product, be sure provide and/or receive approvals regarding individual specifications. note) the part number in the parenthesis shows conventional part number.
2 lna4501f visible light emitting diodes (red) i f ta 60 50 40 30 20 10 ambient temperature ta (?c ) allowable forward current i f (ma) 0 20406080100 0 C 20 t w = 10 s duty cycle = 10% ta = 25?c i fp v f 10 3 10 2 10 forward voltage v f (v) pulse forward current i fp (ma) 2.4 1.6 2.0 1.8 2.2 1 i fp duty cycle 10 4 10 3 10 2 10 1 duty cycle (%) pulse forward current i fp (ma) 10 C1 10 10 2 1 10 C1 10 C2 ta = 25?c ? p o ta 10 ambient temperature ta (?c ) i f = 20ma relative radiant power ? p o C 40 0 40 80 10 2 10 3 wavelength (nm) spectral characteristics 100 80 60 40 20 relative radiant intensity (%) 640 660 680 700 720 0 620 i f = 20ma directivity characteristics 0? 10? 20? 30? 40? 50? 60? 70? 80? 90? coupling loss characteristics 0 1 2 3 4 distance z (mm) coupling loss l z (db) 0.4 1.2 1.6 0.8 5 0 x,y = 0mm y x z fiber coupling loss characteristics 0 1 2 3 4 distance x, y (mm) coupling loss l x , l y (db) C 0.4 0.4 0.8 0 5 C 0.8 y x z fiber p o i f 10 5 10 4 10 3 10 2 10 forward current i f (ma) radiant power p o ( w) 10 2 10 10 3 ta = 25?c 1 20 100 80 60 40 relative radiant intensity (%) z = 0mm z = 0.3mm
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