schottky barrier diode lrb49 1 dlt1g z a pplic a t ions z f eatu r es 1) small mold ty pe. (s o t-23) z c o n s t r u c t i o n silicon epit a xial planar z a b so lu te maximu m ratin g s (t a = 25 c) z electrical ch aracteristics (t a = 25 c) leshan radio company, ltd. LRB491DLT1G 1 3 2 sot? 23 device marking shipping 3000/tape&reel 10000/tape&reel LRB491DLT1G lrb491dlt3g z device marking and ordering information z d2e d2e we declare that the material of product compliance with rohs requirements.
1) low-power rectification 2) for switching power supply 2) ultra low v f . (v f =0.40v typ. at 1a) 3) i f =1.0a guaranteed despite the size. parameter symbol v rm limits 25 unit v peak reverse voltage v r 20 v dc reverse voltage i f 1.0 a dc forward current i fsm 3a peak forward surge current ? tj 125 ?c junction temperature tstg ? 40 + 125 ?c storage temperature ? 60hz for 1 parameter forward voltage reverse current symbol min. typ. max. unit conditions v f i r ? ? ? ? 0.45 200 v a i f =1.0a v r =20v note) esd sensitive product handling required. rev.o 1/3
electrical ch aracteristic cu rv es (t a = 25 c) leshan radio company, ltd. LRB491DLT1G 0 0.2 0.3 0.4 0.5 0.6 0.1 0.1m 1m 100m 10m 10 1 forward current : i f ( a) forward voltage : v f ( v) c ? 5 2 1 = a t c ? 5 7 c ? 5 2 c ? 5 2 ? fig.1 forward characteristics fig.2 reversecharacteristics 0 203040506070 10 0.1 10 1 100 10 1 1000 100 reverse current : i r ( ma) reverse voltage : v r ( v) ta=125 ? c 75 ? c 25 ? c ? 25 ? c fig.3 capacitance between terminals characteristics 010152025303540 5 1 10 1000 100 10000 terminal capacitance : c t (pf ) reverse voltage : v r ( v) f=1mhz 0 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 0.2 0.1 0.3 0.4 0.5 0.7 0.6 forward power dissipation : p f ( w) average rectified forward current : i o ( a) d=0.05 d=0.1 d=0.2 d=0.3 d=0.8 dc sine d=0.5 tp t d=tp/t tj=tj max. i f i o fig.4 forward power dissipation characteristics 1.5 1.0 0.5 0 0 25 50 75 100 125 average rectified forward current : i o ( a) ambient temperature : ta ( ? c) d = 0.3 d = 0.2 d=0.1 d=0.05 dc d = 0.5 d=0.8 sine tp t d = tp/t v r = v rm /2 i f i o fig.5 derating curve (i o - ta) rev.o 2/3
leshan radio company, ltd. LRB491DLT1G d j k l a c b s h g v 12 mm inches 0.037 0.95 0.037 0.95 0.079 2.0 0.035 0.9 notes: 1. dimensioning and tolerancing per ansi y14.5m, 1982. 2. controlling dimension: inch. inches millimeters dim min max min max a 0.1102 0.1197 2.80 3.04 b 0.0472 0.0551 1.20 1.40 c 0.0350 0.0440 0.89 1.11 d 0.0150 0.0200 0.37 0.50 g 0.0701 0.0807 1.78 2.04 h 0.0005 0.0040 0.013 0.100 j 0.0034 0.0070 0.085 0.177 k 0.0140 0.0285 0.35 0.69 l 0.0350 0.0401 0.89 1.02 s 0.0830 0.1039 2.10 2.64 v 0.0177 0.0236 0.45 0.60 0.031 0.8 sot-23 3 pin 1. anode 2. no connection 3. cathode rev.o 3/3
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