schottky barrier rectifer ?2017 littelfuse, inc specifcations are subject to change without notice. revised:03/16/17 dst1040s, 10a, 40v, to-277b, single DST1040S-A maximum ratings parameters symbol test conditions max unit peak inverse voltage v rwm - 40 v average forward current* i f(av) 50% duty cycle @t l =125c rectangular wave form 10 a peak one cycle non-repetitive surge current i fsm 8.3 ms, half sine pulse 150 a * mounted on 30 mm x 30 mm pad areas aluminum pcb electrical characteristics parameters symbol test conditions typ max unit forward voltage drop * v f1 @5a, pulse, t j = 25 c 0.40 0.51 v @10a, pulse, t j = 25 c 0.46 0.57 v f2 @5a, pulse, t j = 125 c 0.30 0.43 @10a, pulse, t j = 125 c 0.37 0.50 reverse current * i r1 @v r = rated v r, t j = 25 c 0.015 0.80 a i r2 @v r = rated v r, t j = 125 c 78 100 junction capacitance c t @v r = 5v, t c = 25 c, fsig = 1mhz 579 - pf * pulse width < 300s, duty cycle <2% pin out 1 k 2 a n o d e a n o d e cathode description applications littelfuse dst series ultra low v f schottky barrier rectifer is designed to meet the general requirements of automotive 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 power supply ? dc/dc converters ? free-wheeling diodes ? polarity protection diodes DST1040S-A, 10a, 40v, to-277b, single r ohs features ? hi reliability application and automotive grade aec-q101 qualifed ? ultra low forward voltage drop ? high frequency operation ? msl: level 1 - unlimited ? high junction temperature capability ? trench mos schottky technology ? single die in to-277b package ? pb-free e3 means 2nd level interconnect is pb-free and the terminal fnish material is tin(sn) (ipc/ jedec j-std- 609a.01) e3
schottky barrier rectifer ?2017 littelfuse, inc specifcations are subject to change without notice. revised:03/16/17 dst1040s, 10a, 40v, to-277b, single thermal-mechanical specifcations figure 3: typical forward characteristics figure 4: typical reverse characteristics DST1040S-A, 10a, 40v, to-277b, single parameters symbol test conditions max unit junction temperature t j -55 to +150 c storage temperature t stg -55 to +150 c maximum thermal resistance junction to ambient r thja dc operation 75 c/w maximum thermal resistance junction to lead r thjl * 3.5 c/w approximate weight wt 0.08 g case style to-277b mounted on 30 mm x 30 mm aluminum pcb; thermal resistance r thjl - junction to lead *lead temperature monitored at the cathode pin figure 1: forward current derating curve 0 3 6 9 1 2 1 5 2 5 5 0 7 5 1 0 0 1 2 5 1 5 0 a v e r a g e f o r w a r d c u r r e n t ( a ) t l , l e a d t e m p e r a t u r e ( o c ) r j l = 3.5 oc / w figure 2: forward power loss characteristics 0 2 4 6 8 1 0 0 3 6 9 1 2 1 5 a v e r a g e p o w e r l o s s ( w ) a v e r a g e f o r w a r d c u r r e n t ( a )
schottky barrier rectifer ?2017 littelfuse, inc specifcations are subject to change without notice. revised:03/16/17 dst1040s, 10a, 40v, to-277b, single 6 lf yy w wl dst1045 dst = devi ce ty pe 10 = forw ar d curre nt (10a ) 45 = rev er se vo ltage (45v) yy = year ww = we ek l = lot nu mb er s = package type s- a a = aec-q101 qualified devic e lf = littelfus e part numbering and marking system DST1040S-A, 10a, 40v, to-277b, single 10 10a dst1040 s-a 40 40v dimensions-to-277b symbol millimeters min ty p max a 630 650 670 b 388 38 408 c 05 1 10 125 d 020 025 030 e 528 538 548 f 340 355 370 g 20 305 320 h 1 74 184 14 i 1 10 125 140 j - 085 - k 170 180 10 l 085 00 05 m - 056 - k c a e g f j i m h b l d k c a e g f j i m h b l d mounting pad layout 3.20[0.126] max 4.90[0.193] max 1.00[0.039] max 1.40[0.055] max 1.94[0.076] max 0.95[0.037] max figure 5: typical junction capacitance
schottky barrier rectifer ?2017 littelfuse, inc specifcations are subject to change without notice. revised:03/16/17 dst1040s, 10a, 40v, to-277b, single packing options part number marking packing mode m.o.q DST1040S-A DST1040S-A 5000pcs / reel 5000 carrier tape & reel speci fcation symbol millimeters min max a 4.28 4.48 b 6.80 7. 0 0 d 1.40 1.60 d1 - 1.50 e 1.65 1.85 f 5.40 5.60 p 7.90 8.10 p0 3.90 4.10 w 11.70 12.30
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