uf1a ? u f 1k 1 of 3 ? 200 2 w on- t op e l e c t ron i cs uf1a ? uf1k 1.0a surface mount ultra fast rectifier features ! glass passivated die construction ! ideally suited for automatic assembly b ! low forward voltage drop, high efficiency ! surge overload rating to 30a peak d ! low power loss a ! ultra-fast recovery time f ! plastic case material has ul flammability classification rating 94v-o c h g e mechanical data ! case: molded plastic ! terminals: solder plated, solderable per mil-std-750, method 2026 ! polarity: cathode band or cathode notch ! marking: type number ! weight: 0.093 grams (approx.) maximum ratings and electrical characteristics @t a =25c unless otherwise specified characteristic symbol uf1a uf1b uf1d uf1g uf1j uf1k unit peak repetitive reverse voltage working peak reverse voltage dc blocking voltage v rrm v rwm v r 50 100 200 400 600 800 v rms reverse voltage v r(rms) 35 70 140 280 420 560 v average rectified output current @t l = 100c i o 1.0 a non-repetitive peak forward surge current 8.3ms single half sine-wave superimposed on rated load (jedec method) @t a = 55c i fsm 30 a forward voltage @i f = 1.0a v fm 1.0 1 .4 1.7 v peak reverse current @t a = 25c at rated dc blocking voltage @t a = 100c i rm 10 500 a reverse recovery time (note 1) t rr 50 100 ns typical junction capacitance (note 2) c j 15 pf typical thermal resistance (note 3) r jl 30 k/w operating and storage temperature range t j, t stg -50 to +150 c note: 1. measured with i f = 0.5a, i r = 1.0a, i rr = 0.25a, 2. measured at 1.0 mhz and applied reverse voltage of 4.0 v dc. 3. mounted on p.c. board with 8.0mm 2 land area. wte power semiconductors smb/do-214aa dim min max a 3.30 3.94 b 4.06 4.70 c 1.91 2.11 d 0.152 0.305 e 5.08 5.59 f 2.13 2.44 g 0.051 0.203 h 0.76 1.27 all dimensions in mm
u f 1 a ? u f 1 k 2 of 3 ? 20 0 2 w on- t op e l e c t ron i cs 50v dc approx 50 ni (non-inductive) w 10 ni w 1.0 ni w oscilloscope (note 1) pulse generator (note 2) device under test t rr se t tim e bas e fo r 10 ns/cm +0.5a 0a -0.25a -1.0a notes: 1. rise time = 7.0ns max. input impedance = 1.0m , 22pf. 2. rise time = 10ns max. input impedance = 5 0 . w w fig. 5 reverse recovery time characteristic and test circuit (+) (+) (-) (-) 0.01 0.1 1.0 10 100 1000 0 20 40 60 8 0 100 120 140 i , instantaneous reverse current (ma) r percent of rated peak reverse voltage (%) fig. 4 typical reverse characteristics t = 100 c j t = 25 c j 0.01 0.1 1.0 10 0 0.4 0.8 i , instantaneous forward current (a) f v , instantaneous forward voltage (v) fig. 2 typical forward characteristics f t - 25 c j pulse width = 300 s m 1.2 1.6 2.0 u f 1 a - u f 1d u f 1g u f 1 j - u f 1 k 0 10 20 30 40 1 1 0 100 i , peak forward surge current (a) fsm number of cycles at 60hz fig. 3 forward surge current derating curve single half sine-wave (jedec method) t = 150 c j 0 0.5 1.0 25 50 75 100 125 150 i average forward current (a) (av), t , l e a d t emper a tur e ( c ) fig. 1 forward current derating curve l
uf1a ? uf1k 3 of 3 ? 2002 won-top electronics ordering information product no. ! ! ! ! package type shipping quantity UF1A-T1 smb 500/tape & reel uf1a-t3 smb 3000/tape & reel uf1b-t1 smb 500/tape & reel uf1b-t3 smb 3000/tape & reel uf1d-t1 smb 500/tape & reel uf1d-t3 smb 3000/tape & reel uf1g-t1 smb 500/tape & reel uf1g-t3 smb 3000/tape & reel uf1j-t1 smb 500/tape & reel uf1j-t3 smb 3000/tape & reel uf1k-t1 smb 500/tape & reel uf1k-t3 smb 3000/tape & reel products listed in bold are wte preferred devices. ! t1 suffix refers to a 7? reel. t3 suffix refers to a 13? reel. shipping quantity given is for minimum packing quantity only. for minimum order quantity, please consult the sales department. recommended footprint 0.050 min (1.27 min) inches ( mm ) won-top electronics co., ltd (wte) has checked all information carefully and believes it to be correct and accurate. however, w te cannot assume any responsibility for inaccuracies. furthermore, this information does not give the purchaser of semiconductor devices any license under patent rights to manufacturer. wte reserves the right to change any or all information herein without further notice. warning : do not use in life support equipment. wte power semiconductor products are not authorized for use as critical components in l ife support devices or systems without the express written approval. we power your everyday. won-top electronics co., ltd. no. 44 yu kang north 3rd road, chine chen dist., kaohsiung, taiwan phone: 886-7-822-5408 or 886-7-822-5410 fax: 886-7-822-5417 email: sales@wontop.com internet: http://www.wontop.com 0.082 min (2.10 min) 0.106 max (2.69 max)
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