schottky barrier rectifer ?2016 littelfuse, inc specifcations are subject to change without notice. revised:02/03/16 DST2045AX, 20a, 45v, axial, single DST2045AX maximum ratings pin out rohs pb parameters symbol test conditions max unit peak inverse voltage v rwm - 45 v average forward current (per device) i f(av) 50% duty cycle @t a =25c rectangular wave form 20 a peak one cycle non-repetitive surge current (per leg) i fsm 8.3 ms, half sine pulse 250 a electrical characteristics parameters symbol test conditions max unit forward voltage drop (per leg) * v f1 @20a, pulse, t j = 25 c 0.58 v v f2 @20a, pulse, t j = 125 c 0.50 reverse current (per leg) * i r1 @v r = rated v r t j = 25 c 1. 2 ma i r2 @v r = rated v r t j = 125 c 35 * pulse width < 300s, duty cycle <2% anode cathode description applications littelfuse dst series ultra low v f schottky barrier rectifer is designed to meet the general requirements of commercial and industry applications by providing high temperature, low leakage and lower v f products. it is suitable for high frequency switching mode power supply, free-wheeling diodes and polarity protection diodes. ? switching mode pow er supply ? dc/dc converters ? free-wheeling diodes ? polarity p rotection diodes features ? ultra low forward voltage drop high frequency operation high junction temperature capability guard ring for enhanced ruggedness and long term reliability single die in p600 package
schottky barrier rectifer ?2016 littelfuse, inc specifcations are subject to change without notice. revised:02/03/16 DST2045AX, 20a, 45v, axial, single thermal-mechanical specifcations figure 1: typical forward characteristics figure 2: typical reverse characteristics oc figure 3: typical junction capacitance oc oc oc oc parameters symbol test conditions max unit junction temperature t j -55 to +150 c storage temperature t stg -55 to +150 c thermal resistance junction to ambient r thja dc operation 55 c/w approximate weight wt 2.24 g case style p600
schottky barrier rectifer ?2016 littelfuse, inc specifcations are subject to change without notice. revised:02/03/16 DST2045AX, 20a, 45v, axial, single packing options part number marking packing mode m.o.q DST2045AX DST2045AX 500pcs / reel 2500 part numbering and marking system ds = device type t = ultralow vf 20 = forward current (20a) 45 = reverse voltage (45v) ax = package type lf = littelfuse yy = year ww = week l = lot number lf DST2045AX yy ww l carrier tape & reel speci f cation d0 d0 w d b a e l1 l2 e t b z 905 symbol millimeters min max a 9.5 10.5 b 50.9 53.9 d 330.0 typ d0 30.1 30.9 e 0.8 max l1 1.0 max l2 1.0 max t 5.6 6.4 w 78.0 81.0 z 1.2 max dimensions- p600 dimensions inches millimeters min max min max a 1.000 - 25.40 - b 0.340 0.360 8.60 9.10 c 0.048 0.052 1.20 1.30 d 0.340 0.360 8.60 9.10 d a a c b
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