STU446S rev.d may.-2016 data sheet http://www.fsbrec.com 1 / 6 to-252 ?? n mos ?? n-channel mosfet in a to-252 plastic package. ??????? super high dense cell design for low r ds(on), rugged and reliable. ?? dc/dc ???? these devices are well suited for high efficiency switching dc/dc c onverters and switch mode power supplies. pin1 g pin 2 d pin 3 s pin 4 d ?? / h fe classifications & marking ?? see marking instructions. / descriptions / features ? / applications ? / equivalent circuit / pinning 3 2 1 4
STU446S rev.d may.-2016 data sheet http://www.fsbrec.com 2 / 6 parameter symbol ? rating unit drain-source voltage v dss 40 v drain current i d (tc=25 ) 38 a drain current i d (tc=70 ) 30 a drain current - pulsed i dm 111 a gate-source voltage v gss 20 v single pulsed avalanche energy e as 64 mj total power dissipation p d (tc=25 ) 42 w operating and storage temperature range t j ,t stg -55 to 150 parameter symbol test conditions ? min ? typ ? max unit drain-source breakdown voltage bv dss v gs =0v i d =250 a 40 v zero gate voltage drain current i dss v ds =32v v gs =0v 1.0 a gate-body leakage current forward i gss v gs =20v v ds =0v 0.1 a gate threshold voltage v gs(th) v ds =v gs i d =250 a 1.0 1.8 3.0 v static drain-source on-resistance r ds(on) v gs =10v i d =19a 13 16.5 m ? v gs =4.5v i d =16a 17 23 m ? forward transconductance g fs v ds =5v i d =19a 43 s drain-source diode forward v oltage v sd v gs =0v i s =4a 0.79 1.3 v input capacitance c iss v ds =20v v gs =0v f=1.0mhz 755 pf output capacitance c oss 121 reverse transfer capacitance c rss 102 turn-on delay time t d(on) v dd =20v i d =1.0a v gs =10v r g =6 ? 16 ns turn-on rise time t r 29 turn-off delay time t d(off) 42 turn-off fall time t f 10 ? / absolute maximum ratings(ta=25 ) ? / electrical characteristics(ta=25 )
STU446S rev.d may.-2016 data sheet http://www.fsbrec.com 3 / 6 ? / electrical characteristic curve
STU446S rev.d may.-2016 data sheet http://www.fsbrec.com 4 / 6 ?? / package dimensions
STU446S rev.d may.-2016 data sheet http://www.fsbrec.com 5 / 6 ?? / marking instructions ? br ?? u446s ??? **** ???? note: br: company code u446s: product type. ****: lot no. code, code change with lot no. br **** u446s
STU446S rev.d may.-2016 data sheet http://www.fsbrec.com 6 / 6 ?? ( ? ) / temperature?profile?for?ir?reflow?soldering(pb-free) ? note: 1 ?? 25 150 ? 60 90sec; 1.preheating:25~150 , time:60~90sec. 2 ?? 245 5 ?? 5 0.5sec; 2.peak temp.:245 5 , duration:5 0.5sec. 3 ???? 2 10 /sec. 3. cooling speed: 2~10 /sec. ? / resistance to soldering heat test conditions ?? 260 5 ?? 10 1 sec. temp.:2605 time:101 sec ? / packaging spec. ?? / reel package type ?? units ? dimension ?? (unit mm 3 ) units/reel ? / reels/inner box / units/inner box ? / inner boxes/outer box / units/outer box ? / reel inner box outer box to-252 2,500 2 5,000 5 25,000 13 16 36036050 385257392 ??? / tube package type ?? units ? dimension ?? (unit mm 3 ) units/tube ? / ? tubes/inner box ? / units/inner box ? / inner boxes/outer box / units/outer box ? / tube ? inner box outer box to-251/252 75 48 3,600 5 18,000 52620.55.25 55516450 575290180 ?? / notices
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