1 infrared light emitting diodes lna2402l glass lens 6.3 0.3 1: anode 2: cathode unit : mm unit : mm 4.6 0.15 glass window 2.54 0.25 1.0 0.2 1.0 0.15 5.75 max. 2- 0.45 0.05 4.5 0.2 12.7 min. 45 3 12 lna2403f 1: anode 2: cathode 4.6 0.15 2.54 0.25 1.0 0.2 1.0 0.15 5.75 max. 2- 0.45 0.05 12.7 min. 45 3 12 ln a 2403 f , lna2402l (ln151f, LN151L) gaas infrared light emitting diodes for optical control systems features high-power output, high-efficiency : p o = 7.5 mw (typ.) fast response and high-speed modulation capability : t r , t f = 1 s (typ.) infrared light emission close to monochromatic light : p = 950 nm (typ.) narrow directivity, suitable for effective use of radiant power (lna2402l (LN151L)) wide directivity, matched for external optical systems (lna2403f (ln151f)) to-18 standard type package absolute maximum ratings (ta = 25?c) parameter symbol ratings unit power dissipation p d 160 mw forward current (dc) i f 100 ma pulse forward current i fp * 2a reverse voltage (dc) v r 3v operating ambient temperature t opr C25 to +100 ?c storage temperature t stg C30 to+100 ?c * f = 100 hz, duty cycle = 0.1 % electro-optical characteristics (ta = 25?c) parameter symbol conditions min typ max unit radiant power p o i f = 100ma 5 7.5 mw peak emission wavelength p i f = 100ma 950 nm spectral half band width ? i f = 100ma 50 nm forward voltage (dc) v f i f = 100ma 1.3 1.6 v reverse current (dc) i r v r = 3v 10 a capacitance between pins c t v r = 0v, f = 1mhz 60 pf rise time t r i fp = 100ma 1 s fall time t f 1 s half-power angle lna2403f the angle in which radiant intencity is 50% 32 deg. lna2402l 8 deg. note ) the part number s in the parenthesis show conventional part numbe r .
2 infrared light emitting diodes lna2403f, lna2402l i f ta 120 100 80 60 40 20 ambient temperature ta (?c ) allowable forward current i f (ma) 0 20406080100 0 C 25 i fp duty cycle 10 2 10 1 10 C1 duty cycle (%) pulse forward current i fp (a) 11010 2 10 C2 10 C1 t w = 10 s ta = 25?c i fp v f 10 3 10 2 10 1 10 C1 forward voltage v f (v) pulse forward current i fp (ma) 10 C2 0 t w = 10 s f = 100hz ta = 25?c 135 24 v f ta 1.6 1.2 0.8 0.4 0 ambient temperature ta (?c ) forward voltage v f (v) C 40 0 40 80 120 ? p o i fp 10 3 10 2 10 1 pulse forward current i fp (ma) relative radiant power ? p o 10 3 10 4 10 2 10 C2 10 C1 110 (1) t w = 10 s duty cycle = 0.1% (2) dc ta = 25?c ? p o ta 10 1 ambient temperature ta (?c ) i f = 50ma relative radiant power ? p o C 40 0 40 80 10 C1 spectral characteristics 100 80 60 40 20 wavelength (nm) relative radiant intensity (%) 850 900 950 1000 1050 1100 0 800 i f = 100ma ta = 25?c 0? 10? 20? 30? 40? 50? 60? 70? 80? 90? directivity characteristics frequency characteristics 10 2 10 1 10 C1 frequency f (khz) modulation output 10 3 10 4 10 2 10 C2 10 ta = 25?c 90 100 80 70 60 50 40 30 2 0 LN151L ln151f (1) (2) i f = 100ma 50ma 10ma ta = 25?c relative radiant intensity(%)
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